纯电动汽车传动系统用油的发展概况及油品开发

徐晶晶，姜禹，黄东升，张伟光，赵治宇

（中国石油大连润滑油研究开发中心润滑油重点实验室，辽宁大连116032）

摘要：简要介绍了新能源汽车的发展趋势，阐述了纯电动汽车传动系统的类型、用油设计思路及用油选择。该文结合不同供应商的硬件技术路线的差异，分析了油冷电机和水冷电机在润滑要求上的区别，并简述了水冷电机结构下两款单级减速箱和多级减速箱油品的开发及验证情况。

关键词： 新能源汽车；系统结构；传动液；发展概况

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）09-0001-04

Overview on the Development of Domestic New Energy Vehicle Transmission System Oil

XU Jing-jing, JIANG Yu, HUANG Dong-sheng, ZHANG Wei-guang, ZHAO Zhi-yu

(Dalian Lubricating Oil Research & Development Institute, Key Laboratory of Lubricating Oil, PetroChina, Dalian116032, China)

Abstract: This article briefly introduces the development trend of new energy vehicles, described the type of  electric vehicle transmission system, oil design ideas and oil selection. Combining the differences in hardware technology routes of different OEMs, analyzed the difference in lubrication requirements between oil-cooled motors and water-cooled motors. It also briefly described the development and verification of  the two single-stage gearbox and multi-stage gearbox oil products under the water-cooled motor structure.

Key words: new energy vehicles; system structure; transmission fluid; overview

水对液压油性能影响的探讨

刘中国¹，高显振¹，侯雷²，郑文君³，朱江¹，李猛¹

Discussion on the Influence of Water on the Hydraulic Oil Performance

LIU Zhong-guo1, GAO Xian-zhen1, HOU Lei2, ZHENG Wen-jun3, ZHU Jiang1, LI Meng1

（1.中国石油大连润滑油研究开发中心液压油汽轮机油船用油重点实验室，辽宁大连116031；2.中国石油北京互联网科技分公司，北京102601；3.中国石油天然气股份有限公司成都润滑油分公司，四川成都610083）

摘要：水是液压油遇到最频繁的污染物，如果水长时间留存在系统中，易造成油品衰变加速、设备锈蚀、磨损增大等一系列问题。液压油国标GB 11118.1-2011中已充分考虑到液压油进水后对油品性能的影响，在防锈、腐蚀性、过滤性和抗磨性等性能中均有要求，同时在换油标准NB/SH/T 0599-2013中进行限定。现今，面对各类设备和不同的实际工况，快速分水和新型乳化性液压油是液压油的两种有效解决方案，因此，通过讨论水分对液压油的影响，从而为提升液压系统的可靠性和延长油品使用寿命提供理论指导。

关键词：液压油；水；抗乳化；乳化型

中图分类号：TH137  文献标志码：B  文章编号：1008-0813（2021）09-0004-04

YJQ-5型液压制动夹钳主动块油缸新加工工艺及验证

张克昌¹，袁果²

（1.湖南铁道职业技术学院，湖南株洲412001；

2.湖南联诚轨道装备有限公司，湖南株洲412001）

摘要：YJQ-5型液压制动夹钳是对铁道机车车轮实施制动操作的一种刹车装置，能够对行驶中的铁道机车减速、停车，确保铁道机车的行驶安全。YJQ-5型液压制动夹钳主要由主动块、被动块、闸片及闸片托等组成，其中主动块中油缸是异形件，形位精度和空间尺寸精度高，在加工过程中存在困难，通过改进加工工艺，确保主动块油缸的形位精度和装配精度符合设计要求，为同类零件的加工工艺的制定提供一定的参考。

关键词： 液压制动夹钳；主动块；油缸；加工工艺

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）09-0008-04

New Processing Technology and Verification of YJQ-5 Type

Hydraulic Brake Clamp Active Block Cylinder

ZHANG Ke-chang¹, YUAN Guo²

(1. Hunan Railway Professional Technology College, Zhuzhou412001, China;

2. Hunan Liancheng Rail Equipment Co., Ltd., Zhuzhou412001, China)

Abstract: YJQ-5 type hydraulic brake clamp is a kind of brake device for railway locomotive wheel, which can decelerate and stop the running railway locomotive, and ensure the running safety of the locomotive. The YJQ-5 type hydraulic brake clamp is mainly composed of active block, passive block, brake block and brake block bracket, among which the oil cylinder in the active block is a special-shaped part with high form and position accuracy and spatial dimension accuracy, by improving the processing technology, the shape and position precision and assembly precision of the driving block cylinder are ensured to meet the design requirements, which provides a certain reference for the establishment of the processing technology of similar parts.

Key words: hydraulic brake clamp; driving block; cylinder; processing technology

当代民用飞机液压系统防火设计适航符合性解读

朱海龙

（中航西飞民用飞机有限责任公司，陕西西安710089）

摘要：液压系统对当代民用飞机而言已是不可或缺的动力源，但却有其固有的缺点，如液压油易挥发、易泄漏、易燃等特性，其防火设计是飞机设计中必须考虑并应持续改进的重要课题，以当代典型民用飞机液压系统为例，对CAAR适航条款中与液压系统防火相关的条款进行解读，并给出设计符合性说明。

关键词： 飞机；适航；防火；液压系统

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）09-0011-04

Explain of Airworthiness Requirements for Hydrulic System Fire

Protection of Contemporary Civilian Aircraft

ZHU Hai-long

(AVIC XAC Commercial Aircraft Co., Ltd., Xi'an710089, China)

Abstract: The Hydraulic system is an indispensable power source for contemporary civil aircraft, but due to its inherent shortcomings, such as hydraulic oil is volatile, easy to leak, and easy to ignite, its fire protection design must be considered and continuously improved in aircraft design. An important subject that should be continuously improved, taking contemporary typical civil aircraft hydraulic systems as an example, the CAAR Airworthiness Requirements related to hydraulic system fire protection clauses are interpreted, and design compliance instructions are given.

Key words: aircraft; airworthiness; fireproof; hydraulic system

液压仿真技术在液压传动教学实践中的应用

李家学¹，李善军²，刘明迪¹，王凌浩¹，高志远¹

（1.广东理工学院工业自动化系，广东肇庆526000；

2.华中农业大学工学院，湖北武汉430070）

摘要：为解决《液压与气压传动》课程流体力学部分教学难点的问题，采用AMESim软件针对油液的物理性质、静力学、运动学和动力学规律建立流体属性仿真模型、液体静压力仿真模型、流体连续性原理仿真模型和孔口流量仿真模型。将其引入到教学过程中，通过可视直观的曲线图和数据，让学生更加深刻地理解相关理论与公式。实践表明：将AMESim仿真技术引入到课程教学过程中，相对于常规教学，学生的考勤率平均提高3.13%，上课抬头率平均提高14.88%，课堂表现更加优秀。通过该课程教学改革增强了教学的直观性，加强学生对知识的理解，充分调动了学生学习积极性，提高了学习效率，提升了课堂教学质量。

关键词：液压与气动；流体力学；AMESim；仿真；教学实践

中图分类号：TH137;G642.0 文献标志码：A 文章编号：1008-0813（2021）09-0015-06

Application of Hydraulic Simulation Technology for Hydraulic Transmission Teaching Practice

LI Jia-xue¹，LI Shan-jun²，LIU Ming-di¹，WANG Ling-hao¹，GAO Zhi-yuan¹

（1. Department of Industrial Automation， Guangdong Polytechnic College，

Zhaoqing 526000,China；

2. College of Engineering，Huazhong Agricultural University，Wuhan430070, China）

Abstract: For the purpose of solving the difficult problems in the teaching of fluid mechanics in the course of hydraulic and pneumatic transmission, AMESim software is used to establish fluid attribute simulation model, hydrostatic pressure simulation model, fluid continuity principle simulation model and orifice flow simulation model for the physical properties, statics, kinematics and dynamics of oil fluid. Through visual and intuitive graphs and data, the students can have a deeper understanding of the relevant theories and formulas. It is found that the introduction of AMESim simulation technology into the course teaching process, compared with conventional teaching, the students'attendance rate is increased by 3.13% on average, the class listening rate is increased by 14.88% on average, and the classroom performance is better. The results shows that the intuition of teaching is enhanced, the students'understanding of knowledge is strengthened, the learning enthusiasm of students is fully mobilized, the learning efficiency is improved, and the quality of classroom teaching is improved.

Key words: hydraulics pneumatics; fluid mechanics; AMESim; simulation; teaching practice

从专利视角看智能阀门定位器的发展现状和创新趋势

曹晴云，屠怡范

（华智数创（北京）科技发展有限责任公司，北京100088）

摘要：作为调节阀核心部件的智能阀门定位器,在工业控制领域得到广泛的应用，正在逐步取代传统的阀门定位器。该文采用专利信息分析方法，对智能阀门定位器的全球专利申请态势、主要创新主体进行了分析，揭示了智能阀门定位器气动部件、通信技术与过程控制系统、可靠定位及故障诊断等关键技术的发展脉络及未来趋势。研究表明，国外几家龙头企业掌握着核心技术，突出特点是高技术、高附加值；且国外龙头企业对中国市场重视，在中国布局有大量专利。国内企业的专利申请量均不大，需要密切跟踪国际发展趋势，提高自主设计能力，实现智能阀门定位器技术的突破发展。

关键词：智能阀门定位器；专利信息；创新主体；关键技术；发展现状；创新趋势

中图分类号：TH138;TH86 文献标志码：A 文章编号：1008-0813（2021）09-0021-05

Development Status and Innovation Trend of Intelligent Valve

Positioner from the Perspective of Patent

CAO Qing-yun, TU Yi-fan

(Huazhishuchuang (Beijing) Technology Development Co., Ltd., Beijing100088, China)

Abstract: As the core component of control valve, intelligent valve positioner has been widely used in the field of industrial control, and is gradually replacing the traditional valve positioner. In this paper, the patent information analysis method is used to analyze the global patent application situation and main innovators of intelligent valve positioner. The development context and future trend of key technologies such as pneumatic components, communication technology, reliable positioning and fault diagnosis of intelligent valve positioner are revealed. The research shows that several leading foreign enterprises master the core technology, which is characterized by high technology and high added value; Moreover, foreign leading enterprises attach great importance to the Chinese market and have a large number of patents in China. The number of patent applications of domestic enterprises is small, so it is necessary to closely track the international development trend, improve the independent design ability, and realize the breakthrough development of intelligent valve positioner technology.

Key words: intelligent valve positioner; patent information; innovators; key technology; development status; innovation trend

一种超高压液压铆接系统的设计

郭龙，李伟，贾云龙，赵祥云，张帅

（中国中车紧固连接技术研发中心，四川眉山620010）

摘要：针对桥梁、建筑等行业钢构件连接用较大直径规格环槽铆钉的应用，开展了一种超高压液压铆接系统的设计。并对该液压系统工作原理、数据采集系统进行了详细描述，确保该系统设计合理、可靠，满足现场使用要求。

关键词：环槽铆钉；超高压；铆接系统；设计

中图分类号：TH137；TH138文献标志码：A文章编号：1008-0813（2021）09-0025-04

Design of an Ultrahigh Pressure Hydraulic Riveting Equipment

GUO Long, LI Wei, JIA Yun-long, ZHAO Xiang-yun, ZHANG Shuai

(CRRC Fastening Connection Technology R & D Center, Meishan620010, China)

Abstract: Aim to the application of ring groove rivets with large diameter specification for steel components in bridge, construction and other industries, an ultra high pressure hydraulic riveting equipment is designed to meet riveting. Then the system of operating principle and data acquisition were optimized, and ensure the hydraulic system was proper designed and reliable to meet the requirement of field use. 

Key words: ring groove rivet; ultrahigh pressure; riveting system; design

多场作用下放气活门温度分布及变形分析

史彦东¹，赵阳¹，涂益韵¹，訾惠宇¹，田纬²，翟富刚^2,3

（1.中国航发长春控制科技有限公司，吉林长春130102；

2.燕山大学机械工程学院，河北秦皇岛066004；

3.燕山大学河北省轻质结构装备设计与制备工艺创新中心，河北秦皇岛066004）

摘要：针对放气活门在多场作用下的温度分布和变形问题。首先，综合考虑放气活门的内介质和外环境的综合作用，建立放气活门热流固耦合仿真模型，得到放气活门的温度分布气压载荷，对放气活门的温度分布进行分析，得到关键位置的温度分布。然后考虑放气活门的安装约束，将温度和流固交界面上的气压作为初始载荷对放气活门的间隙变形进行重点分析，最终得到放气活门在温度和气压对放气活门变形的作用效果差别，为放气活门结构优化提供指导意义。

关键词： 放气活门；热流固耦合；温度分布；变形分析

中图分类号：TH138;V228.7+3文献标志码：A文章编号：1008-0813（2021）09-0029-06

Analysis of Temperature Distribution and Deformation of the

Air Bleed Valve Under Multi-Field Action

SHI Yan-dong¹, ZHAO Yang¹, TU Yi-yun¹, ZI Hui-yu¹, TIAN Wei², ZHAI Fu-gang^2,3

（1. AVIC Changchun Control Technology， Changchun130102, China；

2. School of Mechanical Engineering，Yanshan University，Qinhuangdao066004, China；

3. Hebei Innovation Center for Equipment Lightweight Design and Manufacturing，Yanshan University， Qinhuangdao066004, China）

Abstract: Aiming at the problem of temperature distribution and deformation of the air bleed valve under the action of multi-field. Firstly, considering the comprehensive action of the internal medium and external environment of the air bleed valve, the heat-fluid-structure coupling simulation model of the air bleed valve is established to obtain the temperature distribution and pressure load of the air bleed valve. Then, the temperature distribution of the air bleed valve is analyzed and the temperature distribution of the key position is obtained. Then, considering the installation constraints of the air bleed valve, the temperature and the air pressure on the fluid-solid interface were taken as the initial load to selective analyze the clearance deformation of the air bleed valve, and the difference of the effect of the temperature and air pressure on the deformation of the valve was finally obtained, which provides guidance for the structure optimization of the air bleed valve.

Key words: air bleed valve; heat-fluid-structure coupling; temperature distribution; deformation analysis

基于Mixture模型泡沫发生器气液两相流数值模拟

张江涛，汤文斌，成晓伟

(中国电建集团上海能源装备有限公司，上海201316)

摘要：为提高泡沫发生器发泡效果，优化泡沫发生器内部结构设计，采用流体仿真技术对泡沫发生器内部流场进行数值模拟，分析速度、压力以及气相体积分布，研究不同进气方式以及挡板高度对泡沫发生器内部流场影响，结果表明：中心进气式泡沫发生器内部气液混合均匀程度优于边缘进气式泡沫发生器，内部压力损失比边缘进气式大；在泡沫发生器内部增设挡板有利于增强泡沫发生器内部的气液两相混合均匀程度，随着挡板高度的增加，气相和液相混合越均匀，但会增大泡沫发生器内部压力损失，其研究结果对泡沫发生器结构的优化设计提供理论依据。

关键词： 泡沫发生器；气液两相流；数值模拟；结构优化

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）09-0034-04

Numerical Simulation of Gas-liquid Two-phase Flow in Foam

Generator Based on Mixture Model

ZHANG Jiang-tao, TANG Wen-bin, CHENG Xiao-wei

(Power China SPEM Limited Company, Shanghai201316, China)

Abstract: Using fluid simulation software to numerically simulate the internal flow field of the foam generator. Study the influence of different air intake methods and baffle height on the internal flow field of the foam generator. The results show that the uniformity of gas-liquid mixing in the central intake foam generator is better than that of the edge inlet foam generator, and the internal pressure loss is larger than that of the edge inlet type; Adding a baffle inside the foam generator. It is beneficial to enhance the uniformity of gas-liquid two-phase mixing inside the foam generator. With the increase of baffle height, the gas phase and liquid phase mix more evenly, but the pressure loss of the foam generator will be increased. The results provide a theoretical basis for the optimal design of foam generator structure.

Key words: foam generator; gas-liquid two-phase flow; numerical simulation; structural optimization

诱导轮叶片开缝对高速离心泵空化性能的影响

程效锐^1,2，李敏¹，蒋艺萌¹

（1.兰州理工大学能源与动力工程学院，甘肃兰州730050；

2.甘肃省流体机械及系统重点实验室，甘肃兰州730050）

摘要：为研究诱导轮叶片表面开缝对高速离心泵空化性能的影响规律,设计叶片开缝系数k为0（叶片未开缝）、6.7%、13.3%、20%和26.7%五种叶片开缝方案。基于RNG k-ε湍流模型和Reyleigh-plesset空化模型对高速离心泵进行全流道三维数值模拟，对比分析了诱导轮截面内流线和压力分布规律、诱导轮内空泡发展过程及离心泵的空化特性曲线。研究结果表明诱导轮叶片入口轮缘处开缝可减小亦或是消除该区域的低压区，且对离心泵的水力性能的影响较小；缝隙可抑制并减小初生空化阶段空泡体积分布；开缝系数k对高速离心泵空化性能的影响存在最优值，该研究中开缝系数k=13.3%时，诱导轮的空化性能表现最优。

关键词： 诱导轮；开缝；空化；高速离心泵

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）09-0038-08

Effect of Inducer with Slotted Blade on Cavitation Performance of

High Speed Centrifugal Pump

CHENG Xiao-rui^1,2, LI Min¹, JIANG Yi-meng¹

（1.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou730050，China；

2. Key Laboratory of Fluid Machinery and System of Gansu Province, Lanzhou730050, China）

Abstract: To study the influence of inducer blade with slots on cavitation performance of high speed centrifugal pump, five schemes which slotted coefficient k are 0 (blade without slots), 6.7%, 13.3%, 20% and 26.7% were designed. The RNG k-ε turbulence model and the Rayleigh-Plesset cavitation model were adopted to the three-dimensional numerical calculation of the full flow passage of the pump. Based on the numerical calculation results, the streamline and pressure distribution in the section of the inducer， the development of cavitation in the inducer, and the cavitation characteristics curve of the high speed centrifugal pump were analyzed. The simulated results indicated that setting slots at the inlet of the inducer blade shroud can reduce or eliminate the low pressure area in this area, and has a small impact on the hydraulic performance of the pump， the slots can suppress and reduce the bubbles distribution in the incipient cavitation stage, and the slotted coefficient k has an optimal value for the cavitation performance of the pump. When the slotted coefficient k=13.3%, the cavitation performance of the inducer perform best.

Key words: inducer; slotted blade; cavitation; high speed centrifugal pump

液压钻井泵关键技术的研究

王军伟¹，周小明¹，代荣军²，曾兴昌¹，郝建旭¹，李永飞¹

(1.中油国家油气钻井装备工程技术研究中心，陕西宝鸡721002；

2.中国石油大庆钻探工程公司，黑龙江大庆163453)

摘要：钻井泵主要用于高压下输送高粘度、大密度和高腐蚀性的钻井液。传统钻井泵由于其固有的曲柄连杆结构存在体积大、重量重、压力和流量脉动大的问题，限制了现有钻井泵向大排量、低波动方向发展的极限。该文提出一种液压驱动的直线式钻井泵，经过分析研究，解决了液压钻井泵换向冲击和流量稳定特性的关键技术方案，为我国液压钻井泵的设计、制造及工程化应用提供理论基础。

关键词： 液压钻井泵；液压驱动系统；旋转换向阀；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）09-0045-06

Research on Key Technology of Hydraulic Drill Pump

WANG Jun-wei¹, ZHOU Xiao-ming¹, DAI Rong-jun²,

ZENG Xing-chang¹, HAO Jian-xu¹, LI Yong-fei¹

(1. CNPC National Oil & Gas Drilling Equipment Engineering Technology Research Center,

Baoji721002，China;

2. CNPC Daqing Drilling & Exploration Engineering Company，Daqing163453，China）

Abstract: Drill pump is usually used in the transport of high viscosity, high pressure, large density and high corrosive drilling fluids. there is a large size, heavy weight, pressure and flow oscillation problems in the traditional crankshaft-type drill pump, that restricts the development of traditional drill pump to large flow and low fluctuation. This article express a new drill pump by hydraulic driven after research and analysis, several key technology problems existed in the process of the hydraulic drill pump must be solved in time that have been definited, that is the problem of direction-change-impact and the stability of flow of the drill pump. It provides theoretical basis for the design, manufacture and engineering application of hydraulic drilling pump in China.

Key words: hydraulic drill pump; hydraulic driving system; rotary reversal valve; research

制动系统活塞式柱塞泵脉冲仿真及应用

郝江脉，秦志勇，郑利水，黄朕

（浙江亚太机电股份有限公司，浙江杭州310000）

摘要：该文以ABS/ESC柱塞泵为基础研究对象，研究柱塞泵在制动系统中产生的液压脉冲。建立相关数学模型，柱塞泵工作状态的仿真模型，并根据仿真模型结果对柱塞泵数量及布置产生的液压脉冲对制动系统液压特性影响做了拓展研究。最后用常规ESC和新设计制动产品进行制动系统进行制动器增压试验，结果证明了理论正确性及应用的可行性，为相关产品设计及制动力控制产品提供一种思路。

关键词： 柱塞泵；制动系统；液压；仿真；试验

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）09-0050-06

Pulse Simulation and Application of Plunger Pump for Braking System

HAO Jiang-mai, QIN Zhi-yong, ZHENG Li-shui, HUANG Zhen

（ZheJiang Asia-Pacific Mechanical & Electronic Co., Ltd., Hangzhou310000, China）

Abstract: In this paper, the ABS/ESC plunger pump is taken as the basic research object, and the hydraulic pulse generated by the plunger pump in the braking system is studied. Based on the results of the simulation model, the influence of the number and layout of the piston pump on the hydraulic characteristics of the brake system is studied. Finally, the brake pressurization test is carried out with conventional ESC and newly designed brake products. The results show that the theory is correct and the application is feasible. It provides a

way of thinking for related product design and brake force control products.

Key words: plunger pump；breaking system；hydraulic；simulation；test

轴向柱塞泵空化现象的研究现状

张静，张思涵，朱鹏程，张超勇，胡忠全

（兰州理工大学能源与动力工程学院，甘肃兰州730050）

摘要：空化是轴向柱塞泵中比较普遍的现象，其机理复杂，不易观察和控制。通过对国内外该领域的研究情况进行总结归纳，发现研究该领域主要围绕对轴向柱塞泵柱塞腔内以及配流盘表面的空化现象进行数学建模以及仿真分析，最后实验测试并因此得出抗空化结构并分析其中的优势和不足。对于CFD仿真分析中的主要三种软件进行归纳整理，并对他们的仿真的优势和不足进行说明；并预测今后空化的研究方向和发展趋势。

关键词：轴向柱塞泵；空化；配流盘；CFD仿真

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）09-0056-07

Research on Cavitation of Axial Piston Pump

ZHANG Jing, ZHANG Si-han， ZHU Peng-cheng, ZHANG Chao-yong，HU Zhong-quan

(College of energy and power engineering，Lanzhou University of Technology，

Lanzhou730050，China)

Abstract: Cavitation is a relatively common phenomenon in axial piston pumps, the mechanism

is complicated. it is not easy to observe and control. When summarize the research of the foreign and inland, the research mainly focuses on the Mathematics of cavitation phenomena in the plunger cavity of pump. And including the appearance of valve plate. Then, In order to obtain the anti-cavitation structure, experimental tests were carried out. And its advantages and disadvantages were analyzed. Sorting out and summarizing the mainly three software in CFD simulation analysis. And explaining the advantages and disadvantages of these three software. And predict the future research direction and development trend of cavitation.

Key words: axial piston pump；cavitation；valve plate；CFD simulation

一种模拟配重质量力的液压缸加载的原理

吕少力，马艳萍

A Principle of Hydraulic Cylinder Loading that Simulates the Mass Force of Counterweight

LV Shao-li， MA Yan-ping

（中航飞机起落架有限责任公司，陕西汉中723200）

摘要：该文提出了一种用液压加载方式模拟配重加载的原理。该技术对传统的配重加载方式进行了创新，采用了主动/被动相互转换的加载原理，配以单作用加载液压缸，实现被试缸活塞杆在伸出和收回的过程中，始终向其施加单方向拉载荷，可以很好地满足特定的试验功能，为提高加载试验设备的可靠性、改善使用性能、提高使用效率发挥积极作用。

关键词：模拟配重的；液压缸加载；液压原理

中图分类号：TH137文献标志码：B文章编号：1008-0813（2021）09-0062-03

一种气源自动模拟系统的设计和应用

费凡，杨俊卿，雷晓峰

（凯迈（洛阳）气源有限公司，河南洛阳471003）

摘要：该文介绍了一种气源自动模拟系统，该系统主要由高压空气压缩机、高压无热再生干燥器、储气瓶组、高低温箱、气路控制系统和电控系统等组成。主要用于为飞行控制单元测试提供空气动力源，能够模拟被试件工作时的来流冲压空气和高压气瓶的供气特性。该系统可实现空气增压、空气净化、空气储存，通过工控机全监控操作可对输出气体压力、温度、流量、湿度进行调节，满足供气和测试要求。气源自动模拟系统的实际使用结果表明：该设备具有自动化、智能化程度高的特点，系统操作简单，使用维护方便、实用性强、性能稳定，具有广阔的应用前景。

关键词：气体压力；气体温度；气体湿度；测试装置

中图分类号：TH138文献标志码：A文章编号：1008-0813（2021）09-0065-05

Design and Application of Controlled Air Source System

FEI Fan, YANG Jun-qing, LEI Xiao-feng

(CAMA (Luoyang) Gas Supply Co., Ltd., Luoyang471003, China)

Abstract: This paper introduces a controllable air source system, which is mainly composed of high pressure air compressor, high pressure non-heat regenerative dryer, gas cylinder group, high and low temperature box, gas path control system and electric control system. It is mainly used to provide air power source for flight vehicle test, and can simulate the air supply characteristics of the incoming flow ram air and high pressure gas cylinder when the specimen is working. The system can realize air pressurization, air purification, air storage, through the full monitoring operation of the industrial computer can be adjusted to the output gas pressure, temperature, flow, humidity, to meet the requirements of air supply and testing. The practical application of the controllable air source system shows that the device has the characteristics of automation, high intelligence, simple operation, convenient operation and maintenance, strong practicability, stable performance, and has a broad application prospect.

Key words: gas pressure; gas temperature; gas humidity; testing device

燃气导热油热源站高温循环泵筒体结构数值分析

吕建南，张江涛，夏轶捷，汤文斌

(中国电建集团上海能源装备有限公司，上海201316)

摘要：为提高燃气导热油热源站高温循环泵安全可靠性能，满足350℃高温高压恶劣作业工况，改善耐冲蚀性能及延长使用寿命，采用有限元法对高温循环泵筒体在水压、热结构耦合工况数值分析；制定泵体水压及整泵运行工况性能试验方案。结果表明：筒体在水压及实际运行工况下最大应力分别发生在筒体与密封冷却腔焊接处、出口管与筒体相贯处，安全系数均大于设计要求并有足够安全裕量；通过模态分析获取筒体前六阶固有频率及振型，为避免筒体结构发生共振提供理论依据；同时试验方案验证了筒体与冷却腔体焊接式结构无泄漏、无变形、无异响，密封性能良好，完全满足燃气导热油热源站高温循环泵应用运行要求。

关键词：离心泵；高温循环泵；燃气导热油加热系统；筒体

中图分类号：TH137 文献标志码：A 文章编号：1008-0813（2021）09-0069-04

Numerical Analysis of High Temperature Circulating Pump Cylinder Structure for

Gas Heat Transfer Oil Heat Source Station

LV Jian-nan, ZHANG Jiang-tao, XIA Yi-jie, TANG Wen-bin

(Power China SPEM Limited Company, Shanghai201316, China)

Abstract: In order to improve the safety and reliability of high temperature circulating pump in gas heat transfer oil heat source station, meet the harsh working conditions of 350 ℃ high temperature and high pressure, improve the erosion resistance and prolong the service life, the finite element method was used to analyze the high temperature circulating pump barrel under the coupling conditions of water pressure and thermal structure; The performance test scheme of pump body water pressure and whole pump operation condition was formulated. The results show that: under water pressure and actual operation conditions, the maximum stress of the cylinder occurs at the welding point between the cylinder and the sealed cooling chamber, and at the intersection of the outlet pipe and the cylinder, respectively, and the safety factors are greater than the design requirements with sufficient safety margin; The first six natural frequencies and modes of the cylinder are obtained by modal analysis, which provides theoretical basis for avoiding resonance of the cylinder structure; At the same time, the test scheme verifies that the welded structure of cylinder and cooling chamber has no leakage, deformation, abnormal sound and good sealing performance, which fully meets the application and operation requirements of high temperature circulating pump in gas heat transfer oil heat source station.

Key words: centrifugal pump; high temperature circulating pump; gas oil heat source station;

承受径向力液压缸的密封设计

赵黎明，郭建伟，蒋爱民

Seal Design of Hydraulic Cylinder Bearing Radial Force

ZHAO Li-ming，GUO Jian-wei，JIANG Ai-min

（北京航天发射技术研究所，北京100076）

摘要：通过对承受径向力液压缸的特点进行分析，给出了该类型液压缸密封结构的设计计算方法，提出了密封结构和密封件选型方案，并通过某支腿液压缸径向力测试试验，验证了设计的正确性，结果表明密封结构满足大径向力的使用要求。

关键词：径向力；液压缸；密封；设计

中图分类号：TH137;TB42文献标志码：B文章编号：1008-0813（2021）09-0073-03

高纯制氮设备中氮气质量测试气路改进设计

牛涛，孙勇超，胡魁华，张猛

（凯迈（洛阳）气源有限公司，河南洛阳471003）

摘要：该文介绍了在高纯制氮系统中氮气质量的检测方法，包括检测仪器的测量方式，分析了测试中出现的问题，从高纯氮气制取能效的角度，研究出在高纯制氮方面的快速测量露点和纯度的实施方法，提高了检测速率和准确性，为高纯制氮的检测和使用提供了实用价值。

关键词： 高纯；氮气；露点；测试

中图分类号：TH138文献标志码：A文章编号：1008-0813（2021）09-0075-04

Improved Design of Nitrogen Quality Test Gas Path for High

Purity Nitrogen Production Equipment

NIU Tao, SUN Yong-chao, HU Kui-hua, ZHANG Meng

(CAMA (Luoyang) Gas Supply Co., Ltd., Luoyang471003, China)

Abstract: This paper introduces the detection method of nitrogen quality in high purity nitrogen system, including the measuring method of the testing instrument, analyzes the problems in the test, and studies the implementation method of quick measurement dew point and purity in the aspect of high purity nitrogen production from the perspective of energy efficiency of high purity nitrogen production, and improves the detection rate and accuracy, provides practical value for the detection and use of high purity nitrogen production.

Key words: high purity; nitrogen; the dew point; test

某风洞半柔壁喷管电液伺服系统设计

刘念，王帆，高鑫宇

（中国空气动力研究与发展中心，四川绵阳621000）

摘要：在跨超声速风洞中，喷管是保证试验段获得设计马赫数均匀气流的重要部件。与固块喷管相比，柔壁喷管可在执行机构驱动下连续调节型面，不仅可以缩短不同型面之间的调整时间，还可以在风洞运行中开展连续变马赫数试验。该文分析比较了柔壁喷管型面执行机构不同驱动方式的特点，针对国内首套全伺服液压缸驱动的半柔壁喷管，开展了液压伺服系统和电气控制系统设计，包括液压动力元件配置、恒压油源设计、电气控制系统方案。采用非对称阀控非对称缸技术、同步并联远程恒压供油技术、基于带轴控制器的数字伺服比例阀的分布式控制技术，以满足多液压轴柔壁喷管控制系统的需要。

关键词：柔壁喷管；电液伺服系统；非对称阀控非对称缸；数字伺服比例阀；分布式控制

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）09-0079-05

Design of Electrohydraulic Servo System for Semi-flexible Nozzle of Wind Tunnel

LIU Nian，WANG Fan，GAO Xin-yu

(China Aerodynamics Research and Development Center, Mianyang621000, China)

Abstract: The nozzle is the substantial section to generate the desired uniform flow in the test section of the trans-supersonic wind tunnel. Compared with the fixed-plane nozzle, the flexible nozzle driven by the actuators can adjust the contour continuously, which not only shortens the conversion time between two different profiles but also realises the continous adjustment of mach number in the operation of wind tunnel. This paper analyzes the advtanges and disadvtanges of the various power transmission medium of the actuation mechanisms. The design of the electro-hydraulic servo system is given for the first semi-flexible nozzle driven by servo cylinders in China. The technologies, such as the asymmetrical-valve-controlled-asymmetrical-cylinder system, the synchronously parallel constant pressure pumps system with remote pressure control and the distrubuted control based on the digital servo-proportional valve with integrated axis control, are adopted to meet the control requirements of the flexible nozzle including 44 cylinders in total.

Key words: semi-flexible nozzle; electro-hydraulic servo system; asymmetrical-valve-controlled- asymmetrical-cylinder system; digital servo-proportional valve; distrubuted control

某型水稻插秧机行走冲击大解决方案

胡涛，王海见，孙召锋

Solution of Walking Impact for Rice Transplanter

HU Tao, WANG Hai-jian, SUN Zhao-feng

（山东中川液压有限公司，山东临沂276700）

摘要：随着农业装备的发展，液压无级变速装置在农业机械领域应用越来越广泛,大有取代传统有挡变速器的趋势。液压无级变速装置相对于传统变速器具有：比功率高、体积小、质量小；转弯半径小，制动距离短，换向和制动时间少，提高了工效；操纵灵活、舒适省力，劳动强度小等突出优点。在此背景下与合作厂商共同开发某液压无级变速装置应用于水稻插秧机。

关键词：节流；转速；冲击

中图分类号：TH137文献标志码：B文章编号：1008-0813（2021）09-0083-02

插装式溢流阀密封失效分析及其控制研究

齐国宁，米江，贾丽

(中国航发西安动力控制科技有限公司，陕西西安700077)

摘要：针对某型插装式高压溢流阀在试验过程中频繁出现油液泄漏的问题，通过对阀的密封结构和和试验后配合零件间的接触情况分析，发现油液泄漏是因阀的密封结构设计不合理导致零件尺寸及形位公差难于保证且毛刺不易去除所致，对密封结构进行了改进设计，并完成试验验证，泄漏问题得到了解决。

关键词：插装式溢流阀；泄漏；磨损；分析

中图分类号：TH137；TB42文献标志码：A文章编号：1008-0813（2021）09-0085-04

Seal Failure Analysis and Control of Cartridge Relief Valve

QI Guo-ning, MI Jiang, JIA Li

(AVIC Xi'an Aero-engine Controls Technology Co.，Ltd.，Xi'an700077，China)

Abstract: In view of the frequent oil leakage of a plug-in high-pressure overflow valve during the test, through the analysis of the sealing structure of the valve and the contact between the matching parts after the test, it is found that the oil leakage is caused by the unreasonable sealing structure design of the valve, which makes it difficult to ensure the size and geometric tolerance of the parts and difficult to remove the burrs. The sealing structure is improved, The test verification is completed, and the leakage problem is solved.

Key words: cartridge relief valve; leakage; wear and tear; analysis

提高重型轮驱减速器运行可靠性的研究

李智伟

(中煤科工集团太原研究院，山西太原030006)

摘要：介绍了某型支架搬运车重型轮驱减速器的结构和原理，对其在使用过程中发生的故障原因进行了分析，分析了装配和保养环节造成故障的影响因素，针对浮动油封的安装设计了专用工装，提出了装配和使用注意事项，提高了运行可靠性，经实践检验其故障率由32%降到5%。

关键词：支架搬运车；轮驱减速器；浮动油封；可靠性

中图分类号：TH137文献标志码：A文章编号：1008-0813（2021）09-0088-03

Study on Improving Reliability of Heavy Wheel Drive Reducer

LI Zhi-wei

（Taiyuan Research Institute, China Coal Technology and Engineer Group,

Taiyuan030006, China）

Abstract: Introduces the structure and principle of the heavy wheel drive reducer of a type of scaffold truck, analyzes the causes of failure in the process of use, analyzes the influencing factors of assembly and use of fault, and designs a special tooling for the assembly of floating seal, puts forward the matters needing attention in the assembly and use, improves the operation reliability， practice shows that the failure rate is reduced from 32% to 5%.

Key words: scaffold truck；wheel drive reducer；floating seal；reliability

基于广义CP张量分解和多尺度排列熵的液压泵故障诊断

林青云，叶杰凯，侯巍，梁登，黄李威

（丽水市特种设备检测院，浙江丽水323000）

摘要：针对现有液压泵故障诊断算法故障识别精度低、实测信号中存在冗杂信息和无关成分干扰等问题，提出了一种在高维空间对液压泵振动信号进行处理和模式识别的方法。首先利用L wner矩阵将一维时间序列信号进行高维张量化，然后基于广义CP张量分解（GCP）算法，根据数据分布类型选择适当的损失函数以确定最佳低秩模型，实现对液压泵采集得到的振动信号进行分解，降低分解损失，提高分解精度。最后选择分解结果中与原始信号相似度最高的模式分量，计算其多尺度排列熵（MPE）值进行液压泵不同故障类型的特征识别。将该文所提方法应用于液压泵故障实验台的实测数据分析，验证了其在液压泵故障诊断中的

有效性。

关键词：广义CP张量分解；多尺度排列熵；液压泵；故障诊断

中图分类号：TH137.51文献标志码：A文章编号：1008-0813（2021）09-0090-07

Hydraulic Pump Fault Diagnosis Based on Generalized CP Tensor

Decomposition and Multiscale Permutation Entropy

LIN Qing-yun, YE Jie-kai, HOU Wei, LIANG Deng, HUANG Li-wei

（Lishui Special Equipment Inspection Institute, Lishui323000, China）

Abstract: Aiming at the problems of low fault identification accuracy, interference of miscellaneous information and irrelevant components in the measured signals, a method for pattern recognition of hydraulic vibration signals in high dimensional space is proposed. Firstly, a one-dimensional time series signal is tensioned by L wner matrix. Then, according to the data distribution type, the appropriate loss function was selected to determine the optimal low-rank model. Based on it, Generalized Canonical Polyadic Tensor Decomposition (GCP) algorithm was used to decompose the vibration signals collected by the hydraulic pump. The purpose of this operation is to reduce the decomposition loss and improve the decomposition accuracy. Finally, the mode component with the highest correlation in the decomposition results was selected. Then, its Multi-scale Permutation Entropy (MPE) was calculated to recognize the different fault types, so as to realize the pattern recognition of different fault types of hydraulic pump. The proposed method is applied to the experimental data analysis of hydraulic pump fault, and its effectiveness in hydraulic pump fault diagnosis is verified.

Key words: generalized CP tensor decomposition; multiscale permutation entropy; hydraulic pump; fault diagnosis