摘要
高速车辆结构复杂,目前通过计算机仿真获取其结构特性,仍然十分困难。获得结构动态特性,主要是靠模态试验来完成的。论述一种获取结构特性的计算机仿真方法,及其实现的基本算法。运用多点激励方法及建立各测点最小值的非共振分量为目标函数的适调力方法。仿真结果表明,该方法简单,事后处理工作量小,可信度高。
The structure of high-speed vehicle is complex.Hence,it is difficult to obtain its structural properties though numerical simulation.Modal testing is used very often to obtain dynamic characteristics of the structure.In this paper,a test method for structural characteristics and its realization of the basic algorithm are described.Multi-excitation method is used, and minimum non-resonant component of the measuring point takes as objective function.Simulation results show that this method is simple,has less post-processing work and high reliability.
出处
《噪声与振动控制》
CSCD
北大核心
2011年第1期61-64,共4页
Noise and Vibration Control
基金
铁道部科技研究开发计划项目
编号为2009.J006-F
关键词
振动与波
纯模态
车辆
多点激励
纯度
vibration and wave
pure modal
vehicle
multi-excitation
purity