摘要
计算结果表明一般的振型叠加法计算无质量处的位移是不正确的.为了解决这个问题,本文给出修正的振型叠加法,用该方法计算结果完全符合问题的精确解.本文也给出了该方法的严格理论证明.
Calculation results show that the approach to the calculating of displacement at no mass point by using general method of superposition of vibration meode is not correct.In order to solve this question, this paper give out.the modified method of superposition of vibration meobe,by which we can get a result that goes exactly with the accurate Solution.Furthermore,this paper provides strict theoretical testifieation of the modified method.
关键词
频率
振型叠加
振幅
结构力学
Frequency
Superposition of Vibration Meode
Amplitude
