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一、引言为了解决飞行器结构及其电子设备受宽频域随机振动和由它激发的多峰共振响应而产生的疲劳破坏与失效问题,进一步提高电子设备的控制精度和工作可靠性,必须对它们的振动和冲击等力学环境进行有效控制,同时还应该考虑到尽可能地减轻结构重量、缩小设备体积。应用振动阻尼技术,增加结构阻尼进行阻尼减振是解决这类问题的有效措施。我们知道,结构系统在激振力作用下的共振响应只能被其阻尼所制约,因此采用传统的橡胶减振器进行振动隔离,对谐振控制将不会有理想的效果,甚至有时还会引起相反作用。
I. INTRODUCTION In order to solve the problem of fatigue failure and failure caused by the random vibration in the wide frequency domain and the multi-peak resonance response of the electronic equipment caused by its structure and its electronic equipment, and to further improve the control precision and work reliability of the electronic equipment, Vibration and shock and other mechanical environment for effective control, but also should take into account the structure weight as much as possible to reduce the volume of equipment. The application of vibration damping technology, increasing the damping of the structure damping damping is an effective measure to solve such problems. We know that the resonant response of the structural system under the excitation force can only be controlled by its damping, so the vibration isolation using the traditional rubber shock absorber will not have an ideal effect on the resonance control and may even sometimes cause The opposite effect.