摘要
轴向柱塞马达是液压系统中执行机构的动力元件,其运行过程中产生的振动和噪声严重时会引发传动失效、流体泄漏等重大问题。基于TPA分析法,对轴向柱塞马达运转中的振动、噪声产生机制及传递路径进行理论分析。基于AD⁃AMS和AMESim平台,以机械结构为核心,引入流体动力特性,搭建轴向柱塞马达机-液耦合模型,对其动、静态特性及运转中振动、噪声产生机制进行了进一步分析,指出通过优化配流盘和马达外壳结构可实现减振降噪的目的。对比相关文献中轴向柱塞马达参考数据,输出特性等方面相对误差小于6%,且运动特性符合理论模型,优于现有轴向柱塞马达仿真模型,验证了机-液耦合模型具有较好的计算精度。以仿真评估代替物理样机总体性能评估,能最大程度缩短产品研发周期,降低研发成本,其振动机制分析又可为柱塞马达结构优化提供理论依据。
The axial piston motor is the power component of actuator in hydraulic system.Serious vibration and noise during its operation will cause transmission failure,fluid leakage and other major problems.Based on transfer path analysis,the vibration,noise generation mechanism and transmission path of a axial piston motor during operation were analyzed theoretically.Based on AMESim and ADAMS platform,taking the mechanical structure as core,hydrodynamic characteristics was introduced to set up the axial piston motor machine-liquid coupling model,the dynamic and static characteristic and operating mechanism of the vibration and noise were analyzed further.It was pointed out that the purpose of vibration damping noise reduction could be realized by optimizing the valve plate and motor shell structure.The comparison with the referenced data of hydraulic motors in relevant literatures shows that the relative error of the output characteristics is less than 6%,and the motion characteristics conform to the theoretical model.The simulation evaluation instead of overall performance evaluation of the physical prototype can effectively shorten product development cycle and reduce development cost.
作者
刘洋
程珩
杨枭雄
权龙
LIU Yang;CHENG Hang;YANG Xiaoxiong;QUAN Long(Key Laboratory of Advanced Transducers and Intelligent Control System,Ministry of Education and Shanxi Province,Taiyuan University of Technology,Taiyuan Shanxi 030024,China;College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan Shanxi 030024,China)
出处
《机床与液压》
北大核心
2021年第16期1-7,16,共8页
Machine Tool & Hydraulics
基金
国家自然科学基金项目(51475318)。
关键词
轴向柱塞马达
虚拟样机
机-液耦合
振动噪声
Axial plunger motor
Virtual prototype
Machine⁃liquid coupling
Vibration noise
