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| 1 | Investigation on the Radial Micro-motion about Piston of Axial Piston Pump显示文摘The limit working parameters and service life of axial piston pump are determined by the carrying ability and lubrication characteristic of its key friction pairs. Therefore, the design and optimization of the key friction pairs are always a key and difficult problem in the research on axial piston pump. In the traditional research on piston/cylinder pair, the assembly relationship of piston and cylinder bore is simplified into ideal cylindrical pair, which can not be used to analyze the influences of radial micro-motion of piston on the distribution characteristics of oil-film thickness and pressure in details. In this paper, based on the lubrication theory of the oil film, a numerical simulation model is built, taking the influences of roughness, elastic deformation of piston and pressure-viscosity effect into consideration. With the simulation model, the dynamic characteristics of the radial micro-motion and pressure distribution are analyzed, and the relationships between radial micro-motion and carrying ability, lubrication condition, and abrasion are discussed. Furthermore, a model pump for pressure distribution measurement of oil film between piston and cylinder bore is designed. The comparison of simulation and experimental results of pressure distribution shows that the simulation model has high accuracy. The experiment and simulation results demonstrate that the pressure distribution has peak values that are much higher than the boundary pressure in the piston chamber due to the radial micro-motion, and the abrasion of piston takes place mainly on the hand close to piston ball. In addition, improvement of manufacturing roundness and straightness of piston and cylinder bore is helpful to improve the carrying ability of piston/cylinder pair. The proposed research provides references for designing piston/cylinder pair, and helps to prolong the service life of axial piston pump. | XU Bing ZHANG Junhui YANG Huayong ZHANG Bin | 2013 | Chinese Journal of Mechanical Engineering2013，26，2： | 26 |
| 2 | 轴向柱塞式电液泵能量转化效率研究显示文摘电液泵是一种将电动机与液压泵共转子、共壳体进行高度融合的新型液压动力单元,与传统通过联轴器联结的电动机-泵组相比,具有结构紧凑、功率重量比大等优点。作为新型高集成液压源,电液泵的能量转化效率是业内关注的一个重要指标。介绍轴向柱塞式电液泵的结构与工作过程,分析轴向柱塞式电液泵的电磁、机械、容积各部分损耗,建立相应各部分效率与总效率的计算模型,在此基础上给出轴向柱塞式电液泵定子与转子间油隙损耗、各部分效率以及总效率随转速、压力、温度变化的曲线,分析电液泵的油隙损耗对电液泵效率的影响以及电液泵能量转化效率的特点。理论计算与试验结果的对比验证表明,计算模型是准确的。计算结果表明,研究的这种轴向柱塞式电液泵在油温50℃、转速4 500 r/min、压力28MPa时的油隙损耗为1.85%,低于电动机-泵组中电动机的风扇与机械损耗;其总效率为81.2%,高于电动机-泵组的总效率。 | 付永领 李祝锋 祁晓野 范殿梁 | 2014 | 机械工程学报2014，50，14： | 19 |
| 3 | Noise Reduction of an Axial Piston Pump by Valve Plate Optimization显示文摘Current researches mainly focus on the investigations of the valve plate utilizing pressure relief grooves. However,air?release and cavitation can occur near the grooves. The valve plate utilizing damping holes show excellent perfor?mance in avoiding air?release and cavitation. This study aims to reduce the noise emitted from an axial piston pump using a novel valve plate utilizing damping holes. A dynamic pump model is developed,in which the fluid properties are carefully modeled to capture the phenomena of air release and cavitation. The causes of di erent noise sources are investigated using the model. A comprehensive parametric analysis is conducted to enhance the understanding of the e ects of the valve plate parameters on the noise sources. A multi?objective genetic algorithm optimization method is proposed to optimize the parameters of valve plate. The amplitudes of the swash plate moment and flow rates in the inlet and outlet ports are defined as the objective functions. The pressure overshoot and undershoot in the piston chamber are limited by properly constraining the highest and lowest pressure values. A comparison of the various noise sources between the original and optimized designs over a wide range of pressure levels shows that the noise sources are reduced at high pressures. The results of the sound pressure level measurements show that the optimized valve plate reduces the noise level by 1.6 d B(A) at the rated working condition. The proposed method is e ective in reducing the noise of axial piston pumps and contributes to the development of quieter axial piston machines. | Shao-Gan Ye Jun-Hui Zhang Bing Xu | 2018 | Chinese Journal of Mechanical Engineering2018，31，3： | 15 |
| 4 | Pre-Compression Volume on Flow Ripple Reduction of a Piston Pump显示文摘Axial piston pump with pre-compression volume(PCV)has lower flow ripple in large scale of operating condition than the traditional one.However,there is lack of precise simulation model of the axial piston pump with PCV,so the parameters of PCV are difficult to be determined.A finite element simulation model for piston pump with PCV is built by considering the piston movement,the fluid characteristic(including fluid compressibility and viscosity)and the leakage flow rate.Then a test of the pump flow ripple called the secondary source method is implemented to validate the simulation model.Thirdly,by comparing results among the simulation results,test results and results from other publications at the same operating condition,the simulation model is validated and used in optimizing the axial piston pump with PCV.According to the pump flow ripples obtained by the simulation model with different PCV parameters,the flow ripple is the smallest when the PCV angle is 13°,the PCV volume is 1.3′10–4m3at such operating condition that the pump suction pressure is 2 MPa,the pump delivery pressure 15 MPa,the pump speed 1 000 r/min,the swash plate angle 13°.At the same time,the flow ripple can be reduced when the pump suction pressure is 2 MPa,the pump delivery pressure is 5 MPa,15 MPa,22MPa,pump speed is 400 r/min,1 000 r/min,1 500 r/min,the swash plate angle is 11°,13°,15°and 17°,respectively.The finite element simulation model proposed provides a method for optimizing the PCV structure and guiding for designing a quieter axial piston pump. | XU Bing SONG Yuechao YANG Huayong | 2013 | Chinese Journal of Mechanical Engineering2013，26，6： | 15 |
| 5 | 考虑油液黏压特性的高压航空液压泵柱塞副泄漏模型研究显示文摘提高机载液压系统压力可以提高液压系统功率密度,但是随着航空液压泵转速增大和压力增高,关键摩擦副之一的柱塞副磨损加剧,泄漏量增大。提出了一种考虑油液黏压特性的高压航空液压泵柱塞副泄漏量模型。结合Barus液压油液黏压公式,在经典泄漏量公式的基础上进行一定程度的补充和修正,以便更精确的计算高压航空液压泵柱塞副各种磨损程度下的泄漏量。仿真结果表明,系统压力达到35 MPa,黏度变化导致的泄漏量变化不可忽略。 | 李元 王少萍 石健 郑硕 | 2018 | 液压与气动2018，42，5： | 15 |
| 6 | Impact of Typical Steady-state Conditions and Transient Conditions on Flow Ripple and Its Test Accuracy for Axial Piston Pump显示文摘The current research about the flow ripple of axial piston pump mainly focuses on the effect of the structure of parts on the flow ripple. Therein, the structure of parts are usually designed and optimized at rated working conditions. However, the pump usually has to work in large-scale and time-variant working conditions. Therefore, the flow ripple characteristics of pump and analysis for its test accuracy with respect to variant steady-state conditions and transient conditions in a wide range of operating parameters are focused in this paper. First, a simulation model has been constructed, which takes the kinematics of oil film within friction pairs into account for higher accuracy. Afterwards, a test bed which adopts Secondary Source Method is built to verify the model. The simulation and tests results show that the angular position of the piston, corresponding to the position where the peak flow ripple is produced, varies with the different pressure. The pulsating amplitude and pulsation rate of flow ripple increase with the rise of pressure and the variation rate of pressure. For the pump working at a constant speed, the flow pulsation rate decreases dramatically with the increasing speed when the speed is less than 27.78% of the maximum speed, subsequently presents a small decrease tendency with the speed further increasing. With the rise of the variation rate of speed, the pulsating amplitude and pulsation rate of flow ripple increase. As the swash plate angle augments, the pulsating amplitude of flow ripple increases, nevertheless the flow pulsation rate decreases. In contrast with the effect of the variation of pressure, the test accuracy of flow ripple is more sensitive to the variation of speed. It makes the test accuracy above 96.20% available for the pulsating amplitude of pressure deviating within a range of ?6% from the mean pressure. However, with a variation of speed deviating within a range of ?2% from the mean speed, the attainable test accuracy of flow ripple is above 93.07%. The model constructed in this research proposes a method to determine the flow ripple characteristics of pump and its attainable test accuracy under the large-scale and time-variant working conditions. Meanwhile, a discussion about the variation of flow ripple and its obtainable test accuracy with the conditions of the pump working in wide operating ranges is given as well. | XU Bing HU Min ZHANG Junhui | 2015 | Chinese Journal of Mechanical Engineering2015，28，5： | 14 |
| 7 | 磨损轮廓与弹性变形对滑靴动态特性的影响显示文摘考虑滑靴的倾斜与底面实际磨损轮廓,结合滑靴实际受力状况,建立描述滑靴微观运动的动力学方程,对滑靴的刚度分布特性进行研究从而引入底面流体压力所导致的结构弹性变形所带来的影响。联立动力学方程、瞬态二维雷诺方程、油膜描述方程,弹性变形方程,油室压力控制方程,实现滑靴动力学特性与摩擦特性的耦合求解,获得整个工作周期内滑靴的微观运动状态,实现滑靴副润滑特性的精确计算。探讨微观磨损几何、滑靴底面的流固耦合效应对滑靴动态油膜特性的影响。分析结果表明,一定的磨损轮廓与弹性变形均可以保证滑靴承载特性的稳定性,较大的磨损轮廓会降低滑靴的承载力并使滑靴最小膜厚降低;当滑靴位于低压吸入区时,具有表面磨损轮廓的滑靴会出现很大的倾斜现象;磨损轮廓与弹性变形对滑靴的摩擦转矩特性也存在一定的影响。 | 刘洪 苑士华 荆崇波 赵一民 | 2013 | 机械工程学报2013，49，5： | 12 |
| 8 | 液压柱塞泵压力脉动函数的仿真分析显示文摘流量脉动会引起压力脉动,从而影响液压系统的工作性能,引起结构振动和辐射噪声,会造成液压元件和系统的疲劳破坏,因此仿真分析流量脉动和压力脉动函数对于有效抑制液压柱塞泵的振动和正确设计液压柱塞泵具有重要价值。笔者针对液压泵系统进行定量的振动与噪声分析时所必须具备的激励函数,首先,详细分析了液压泵系统的运行特性,采用傅里叶(Fourier)级数模拟液压泵系统激励函数;然后,建立了压力脉动函数模型;最后,模拟了压力脉动的函数曲线,解决了液压泵系统振动与噪声分析所必需的激励问题。该文为进一步研究液压柱塞泵的定量振动与噪声的响应提供了脉动激励描述,具有理论意义和实际应用价值。 | 张天霄 | 2016 | 振动.测试与诊断2016，36，5： | 9 |
| 9 | 转套式配流系统配流口结构及对工作脉动的影响显示文摘转套作为配流系统的核心零件之一,其配流口的结构形状对整个配流系统的工作脉动影响较大。以配流系统为研究对象,设计方形配流口、圆形配流口、双配流口3种不同配流口结构转套。首先建立了3种配流口过流面积的数学建模,分析过流面积的变化特点与规律。为了研究不同配流口对配流系统的流量特性与压力特性的影响,利用流体仿真分析软件Fluent,对3种配流口结构的流体模型进行流体动力学仿真。结果表明方形配流口配流面积最大,配流曲线较平稳,圆形配流口对流量脉动和压力脉动影响最小,所以可根据对配流系统的不同要求选用不同结构的转套。 | 张延君 张洪信 赵清海 王新亮 程前昌 | 2017 | 流体机械2017，45，11： | 8 |
| 10 | 基于虚拟样机的轴向柱塞泵柱塞有限元分析显示文摘借助虚拟样机技术可以灵活构建柱塞泵三维模型,并能将部件间的实际运动副以及流体特性引入,从而能使柱塞泵的虚拟样机能模拟实际泵。搭建固液耦合、刚柔耦合的轴向柱塞泵虚拟样机模型,引入柱塞的有限元模型,对柱塞的应力应变进行仿真研究。仿真结果与柱塞泵的理论相符有助于柱塞泵结构改进和性能优先。 | 徐兵 李春光 张军辉 张斌 | 2010 | 机床与液压2010，38，11： | 8 |
| 11 | 轴向柱塞泵柱塞滑靴组件动力学特性建模与分析显示文摘柱塞滑靴组件的动力学特性直接决定了泵的工作性能。泵运转周期内,存在如离心力、滑靴副摩擦力及柱塞与缸孔间接触力等大小和方向都时变的作用力,但长期以来在对柱塞滑靴组件的动力学参数分析中,仅局限于或在某一固定位置处、或在简化假设情况下进行计算,这给泵结构的优化设计及泵性能的预期评估带来不利影响。为在全周期内动态评估柱塞滑靴组件的动力学性能,依据不同应用需要,在简化受力情况下提出了相应的简化数学模型,在完整受力情况下,通过引入随体坐标系,提出了相应的精细数学模型。建立的模型遵循真实的柱塞-缸孔线接触力动力学行为,并进一步考虑到了接触力作用位置随工况实时动态变化的实际情况。通过实验结果与基于AMESim-ADAMS软件建立的联合仿真模型分布参数法仿真结果的对比,验证了所提出的数学模型。应用实践表明,提出的模型可以方便地应用于对柱塞滑靴组件相关重要动力学参数的全面动态评估及泵结构的动态优化设计。 | 胡敏 徐兵 周万仁 夏士奇 | 2016 | 农业机械学报2016，47，3： | 7 |
| 12 | 海水淡化轴向柱塞泵的虚拟样机技术研究显示文摘为了研制反渗透海水淡化用高压轴向柱塞泵,采用虚拟样机技术对其机械动力学和压力流量特性进行了预测.泵的三维几何模型基于结构设计得到:通过施加运动学约束和对关键零件进行进行柔性化处理建立了泵的机械模型;通过对泵内动态压力和流量分析得到了泵的流体模型;联合机械模型与流体模型建立了泵的虚拟样机模型.通过运行泵虚拟样机模型获得了主要零件的运动学和动力学规律、泵出口的动态流量和压力规律及关键零件的动态等效应力等数据,仿真结果表明:泵的主要性能达到了设计要求,关键零件具有较大的强度裕度,可以在更高的压力等级下运行. | 翟江 周华 | 2012 | 华中科技大学学报(自然科学版)2012，40，3： | 7 |
| 13 | 基于EASY5的轴向柱塞泵建模与流量特性仿真研究显示文摘以CY14-1B型斜盘式轴向柱塞泵为研究对象,分析柱塞泵结构原理与柱塞运动规律,建立柱塞泵流量数学模型。利用MSC.EASY5软件搭建柱塞泵液压虚拟样机模型,进行流量仿真计算,与液压试验台测试结果对比,验证模型的准确性。在此基础上,仿真计算不同斜盘倾角、不同内泄量情况下柱塞泵流量特性曲线,仿真模拟结果与理论分析及实际情况基本一致。结果表明:应用EASY5软件可以准确有效的实现柱塞泵建模和仿真,为进一步研究柱塞泵故障诊断提供参考,对复杂液压元件虚拟样机建模具有借鉴意义。 | 马万鹏 马吉胜 曹立军 寇勃晨 | 2017 | 液压与气动2017，41，10： | 7 |
| 14 | 轴向柱塞泵多学科融合建模与集成优化显示文摘为了实现机液耦合条件下轴向柱塞泵的精确建模和优化设计,提出了轴向柱塞泵多学科融合建模与集成优化方法。以国产I3V2-10S型轴向柱塞泵为对象,分别建立了ADAMS机械系统模型和AMESIM液压系统模型,通过ADAMS和AMESIM之间的接口模块设计实现了柱塞泵机液耦合建模和联合仿真,并利用iSIGHT软件集成了该机液耦合模型,以该柱塞泵出口体积流量脉动率最小为目标,对配流副中吸排油节流口最大开口等效直径、吸排油闭死角、柱塞包角、吸排油预开口量等参数进行了优化设计。结果表明:在负载工况分别为10、14、18、22、26、30MPa时,优化后的泵出口流量脉动率比优化前分别降低了14.59%、18.57%、21.50%、23.44%、24.03%、25.49%,最后通过实验验证了仿真和集成优化数据的正确性。 | 吴小锋 何亚峰 黄志荣 江炜 冯春 | 2018 | 航空动力学报2018，33，5： | 6 |
| 15 | 考虑有效体积弹性模量的柱塞泵流场仿真分析显示文摘为提高柱塞泵的寿命和安全可靠性,确定柱塞泵合理的工作范围,运用FLUENT对轴向柱塞泵的运动特性进行仿真分析,研究了油液的含气量、变转速、温度与柱塞泵出口流量脉动之间的关系。仿真结果表明:油液的含气量对油液压缩性产生很大的影响,对泄漏流量影响较小;负载压力一定时,主轴转速超过2 600 r/min左右时,容积效率随着转速的增大而减小;压缩流量和泄漏随着温度的升高而增大。模型的准确性得到了实验验证,为开展柱塞泵的非线性动力学及故障演化机理等方面的研究提供了有效的工具。 | 罗恒星 谷立臣 许睿 焦龙飞 赵鹏军 | 2017 | 机械科学与技术2017，36，7： | 5 |
| 16 | 共轨高压油泵柱塞微运动特性仿真分析研究显示文摘基于结构动力学与流体动力润滑理论,建立柱塞副微运动过程的动力学模型,数值求解了工作过程中柱塞偏移、倾斜的微运动特性,并进一步获得了柱塞最大升程、柱塞副初始密封长度、初始间隙等参数对柱塞微运动特性的影响规律分析,提出了原模型的改进方案。计算结果表明:增加柱塞的最大升程会使偏移量增大而倾斜角变小;适当增加柱塞副初始密封长度及减小初始间隙有利于减小柱塞偏移量及倾斜角,改善柱塞的微运动特性。通过对原模型优化改进可使柱塞最大偏移量和倾斜角减小约50%。 | 王慧敏 向建华 汪川 | 2019 | 内燃机工程2019，40，3： | 5 |
| 17 | 微运动下高压油泵柱塞副瞬态泄漏研究显示文摘共轨高压油泵的泵油能力及容积效率受柱塞副燃油泄漏的制约,而柱塞的微运动特性对柱塞副的泄漏有着重要影响。基于结构动力学与流体动力润滑理论,建立柱塞副微运动过程的动力学模型,分析柱塞偏移、倾斜的微运动特性;综合考虑柱塞微运动、柱塞副的结构变形以及燃油物性变化的影响,建立升程段柱塞副燃油瞬态泄漏数学模型,获得了微运动下柱塞副工作过程的瞬态泄漏特性,并进行试验验证。计算结果表明:在柱塞升程段,柱塞的偏移量先增大后减小,柱塞倾斜角先减小后而增大;相比柱塞副实测的瞬态泄漏,考虑微运动下的瞬态泄漏平均误差为3%,而不考虑微运动的瞬态泄漏平均误差为20%,所以考虑微运动的瞬态泄漏模型更精确。 | 王慧敏 向建华 汪川 | 2018 | 润滑与密封2018，43，10： | 5 |
| 18 | 转套式配流系统闭死角对工作脉动的影响研究显示文摘为了降低转套式配流系统在转换过程中出现的冲击现象和噪声,本文根据配流系统配流特征,分析了泵腔在两个阶段中闭死升压和降压的数学模型。同时,为改善配流系统工作中液压冲击现象,选取最佳闭死角,并利用仿真软件Fluent,对配流系统工作循环中流量和压力变化进行数值模拟。仿真结果表明,当闭死压缩角为3°时,对流量特性及泵腔压力脉动的影响最小,且最接近理论分析;在任意膨胀阶段,泵腔内部都出现了不同程度的空化现象,且膨胀角越小,流量脉动越大,综合考虑膨胀角选取2°最合适。该研究为转套式配流系统确定闭死角的大小提供了理论依据。 | 张延君 张洪信 赵清海 王新亮 程前昌 | 2018 | 青岛大学学报(工程技术版)2018，33，1： | 4 |
| 19 | 柴油机高压油泵柱塞副泄漏研究进展显示文摘高压共轨燃油喷射系统已发展为柴油机喷油系统的主流,其喷射压力的提高直接受到高压油泵泵油能力的制约。柱塞副泄漏是导致高压油泵容积效率降低、泵油能力下降的关键因素。从影响柱塞副泄漏的几个关键因素出发,概述相关研究的发展现状,总结该领域的理论研究和应用特点,提出现有研究存在的问题及未来可能的研究发展方向。 | 钱德省 廖日东 | 2014 | 润滑与密封2014，39，9： | 4 |
| 20 | 数字化样机技术与新型织机的研发显示文摘介绍数字化样机技术的发展及其在新型织机研发中的应用。从数字化样机技术的概念及特点出发,介绍了数字化样机技术在国内外的发展、应用现状以及当前主流数字化设计商业软件。分析了我国当前织机的研发现状,指出了我国织机系统的全数字化开发面临的关键问题和技术难点,列举了国内针对织机整机系统的数字化样机研究平台。认为:数字化技术为纺织工业引入了全新的研发模式,是未来纺织机械发展的必然趋势。 | 邱海飞 王益轩 | 2014 | 棉纺织技术2014，42，11： | 3 |
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