吴英龙,赵华,张国刚.车辆液压减振器设计理论与仿真[J].农业机械学报,2013,44(12):29-35.
Wu Yinglong,Zhao Hua,Zhang Guogang.Design and Simulation of Vehicle Shock Absorber[J].Transactions of the Chinese Society for Agricultural Machinery,2013,44(12):29-35.
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车辆液压减振器设计理论与仿真   [下载全文]
Design and Simulation of Vehicle Shock Absorber   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2013.12.006
中文关键词:  车辆减振器  节流计算  变形计算  流固耦合
基金项目:国家自然科学基金资助项目(11172249)
作者单位
吴英龙 西南交通大学 
赵华 西南交通大学 
张国刚 四川宁江精密机械有限公司 
中文摘要:从理论上研究了局部节流损失、沿程节流损失、起始段填充和常通孔等影响因素,建立了减振器开阀后的节流公式。研究了阀片与弹簧座的3种接触方式:集中接触、部分受液压作用的分布接触和全部受液压作用的分布接触,并基于板壳理论建立了相应的阀片变形计算公式。完成了阻尼力-速度特性测试,获得了节流通道的压力-速度特性曲线,验证了瞬态双向流固耦合分析的仿真结果;采用流固耦合仿真分析了阀片应力和位移分布、筒内流场分布及其变化特点,与Java数值计算的理论结果吻合。
Wu Yinglong  Zhao Hua  Zhang Guogang
Southwest Jiaotong University;Southwest Jiaotong University;Sichuan Ningjiang Precision Machinery Manufacturing Co., Ltd.
Key Words:Vehicle absorber  Throttling computation  Deformation computation  FSI
Abstract:Considering the local head loss, the frictional head loss, rod padding effect and throttle orifice flow effect, shock absorber throttle formula after the valve opening were analyzed. Three contact types between valve disc and spring seat were investigated, which were circumference line contact, circumference surface contact with entirely hydraulic pressure subjection, and circumference surface contact with partially hydraulic pressure subjection. Corresponding valve disc deformation calculations were established based on the theory of shells and the finite element. The test of damping force vs velocity characteristic was finished, and the curve of pressure vs velocity characteristic at throttle was obtained. It verified the rationality of the transient fluid-structure interaction simulation (FSI). The distribution and the history of the valve disc deformation and the fluid field gained from FSI simulations coincided with Java numerical simulation from theoretic method.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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