摘要
垂直主振系冲击消振系统是一多参数多自由度系统,其运动具有复杂的非线性本质。为深入了解其运动特性,笔者对悬臂梁垂直主振系冲击消振系统进行了实验研究。首先对悬臂梁实验装置的模态参数和激励力的激励留数进行识别,然后对实验装置施加不同的激励频率和幅值,得到大量的实验数据。对实验数据处理分析后,得到了系统的响应状态图,并结合观察到的实验现象,推导了几点有关垂直主振系冲击消振系统非线性方面的定性结论。
A vertical impact damping system is a kind of system with multi-degree and multi-parameter,and its motion has a complicated non-linear feature. To determine its motion characteristics,we experimented on a cantilever beam-damper system. We first identified the mode parameters and inspiriting residences of the experimental device, then imposed the device different frequency and amplitude of inspirit. In this way,we obtained lots of experimental data. After analyzing these data,we plotted response phase charts of the system. Based on the experimental phenomena,conclusions about the non-linearity of the vertical impact damping system were drawn.
出处
《机械科学与技术》
CSCD
北大核心
2010年第2期214-219,共6页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然基金委员会-中国工程物理研究院联合基金项目(10876034)资助
关键词
垂直主振系
冲击消振
非线性
vertical vibrating system
impact damping
non-linear
