摘要
将简谐激励下的阻尼结构运动方程进行傅里叶变换,通过频域响应的模和阻尼结构动响应幅值的关系,并基于文献[1],提出了阻尼结构动响应幅值高阶修改公式,其工作量完全同于一阶导数修改。算例表明,文中推证的公式是正确和有效的。本方法为结构动态优化的实现提供了基础。
In this paper,a set ot high-order moditication formulas of dynamic response amplitude of damping structures was derived,been based on the Fourier transform of the damping structural motion equation under the sinusoidal excitation,the relationship between dynamic response modul of damping structure in frequency domain and the amplitude of it in time domain,and reference[1].The calculation example showed a good accuracy and ef- fectiveness by these formulas only on first-order response information.The method in this paper is of practical use for optimization design of the large structural dynamic response.
出处
《机械强度》
CAS
CSCD
北大核心
1993年第3期1-6,共6页
Journal of Mechanical Strength
