机械臂架系统的非随机振动分析

中国机械工程

机械臂架系统的非随机振动分析

曾光1,2，3;段民封1，2;倪冰雨1，2;姜潮1，2

1.湖南大学汽车车身先进设计制造国家重点实验室，长沙,410082
2.湖南大学机械与运载工程学院，长沙,410082
3.长沙中联重科环境产业有限公司,长沙,410131

出版日期:2019-05-25 发布日期:2019-05-28
基金资助:
国家杰出青年科学基金资助项目（51725502）；
国家重点研发计划资助项目（2016YFD0701105）；
大连理工大学精密与特种加工教育部重点实验室研究基金资助项目（JMTZ201701）

Non-random Vibration Analysis of Mechanical Arm Systems

ZENG Guang1,2，3;DUAN Minfeng1，2;NI Bingyu1，2;JIANG Chao1，2

1.State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha,410082
2.College of Mechanical and Vehicle Engineering, Hunan University, Changsha,410082
3.Zoomlion Environmental Industry Co., Ltd., Changsha, 410131

Online:2019-05-25 Published:2019-05-28

摘要/Abstract

摘要： 研究了机械臂架结构在不确定性动态激励作用下的振动问题。针对不确定动态激励的样本函数数量有限，难以得到具体的概率统计信息的问题，采用区间过程对其进行描述；基于结构单位脉冲响应并利用卷积积分及区间过程的相关性质获得动态不确定激励的波动上下边界；以混凝土泵车臂架作为典型工程装备部件，应用上述方法对臂架系统作业过程中的动态响应进行了研究分析。

关键词: 机械臂架系统, 动态不确定性分析, 区间过程, 非随机振动

Abstract: The vibrations of mechanical arm systems under uncertain dynamic excitation were studied. Aiming at the difficulties in getting specific probability and statistics informations due to the limited numbers of sample functions of uncertain dynamic excitations，the dynamic uncertainty of the excitation was described by interval process. Based on the structural unit pulse response, the convolution integral and the correlation properties of interval process, the upper and lower boundaries of dynamic uncertain excitations were obtained. Finally, as a typical engineering equipment component, the dynamic responses of mechanical arm systems of concrete pump truck in operation processes were studied and analyzed by the above methods.

Key words: mechanical arm system, dynamic uncertainty analysis, interval process, non-random vibration

中图分类号:

TB123

曾光1,2，3;段民封1，2;倪冰雨1，2;姜潮1，2. 机械臂架系统的非随机振动分析[J]. 中国机械工程.

ZENG Guang1,2，3;DUAN Minfeng1，2;NI Bingyu1，2;JIANG Chao1，2. Non-random Vibration Analysis of Mechanical Arm Systems[J]. China Mechanical Engineering.

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