摘要
提出了一种以产品遥测振动时域信号为基础的多维随机振动试验条件制定方法。应用此方法确定的多维随机振动参考谱矩阵满足正定性要求。实例自闭环多维随机振动试验控制结果表明,本文方法合理可行。
Based on the telemetry vibration signal in time domain,a method for design multi-axis random vibration test conditions is presented in this paper.The reference matrix calculated by this method for multi-axis random vibration test is positive-definite.An example is performed in a multi-axis random vibration test by self closed loop control,the result shows that the method presented in this paper is reasonable and feasible.
出处
《强度与环境》
2010年第6期1-6,共6页
Structure & Environment Engineering
关键词
多维随机振动试验
矩阵
正定
时域
频域
multi-axis random vibration test
matrix
positive-definite
time domain
frequency domain
