摘要
本文介绍一种新的刚体振动测试方法——有透镜时间平均法。文中推导了三维振动物体的振幅计算公式。实验结果证明了这一理论的正确性。将有透镜时间平均法与无透镜时间平均法相结合，可以进一步扩大时间平均法的振动测试范围。
In this paper, a new time-average method with lens for vibrational measurement has been discribed. The amplitude formulas of 3-D vibrational object has been derived. The correctness of the theories has been proved by the experimental results. The Vibrational measurement scope will be expanded by the combination of the： time-average method with lens and the one with no lens.
出处
《西北纺织工学院学报》
1989年第1期12-19,共8页
Journal of Northwest Institute of Textile Science and Technology
关键词
有透镜时间平均法
面内位移
离面位移
富里叶变换
Time-average method with lens
In-displacement
Off- displacement
Fourier transform
