集中质量对Beck杆动力特性的影响  

Dynamic characteristics of Beck's column with concentrated mass

作　　者：杨峰[1] 李天恩[2] 韩刚耀 

机构地区：[1]西安理工大学理学院,陕西西安710048 [2]宝鸡文理学院机电工程系,陕西宝鸡721007 [3]渭南市供电局,陕西渭南714000

出　　处：《宝鸡文理学院学报（自然科学版）》2007年第4期321-323,共3页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

摘　　要：目的研究含有末端集中质量的Beck杆的动力特性。方法采用解析法进行研究,分析了端部集中质量对杆的一、二阶频率和随从力临界值的影响。结果建立计算模型,导出运动微分方程。结论末端质量对Beck杆稳定性有一定的影响。Aim To investigate the dynamic characteristics of Beck＇s column with concentrated mass at the end. Methods The analytical method is used to resolve the problem. Results The effect of concentrated mass at the end on the first frequency and follower force critical value is analyzed. The mathematical models are found. The differential equation of the motion is given. Conclusion The concentrated mass at the end can influence the stability of Beck＇s column greatly.

关 键 词：Beck杆 随从力 集中质量 解析法 

分 类 号：O326[理学—一般力学与力学基础]