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现代航海、航空和航天事业的迅速发展,使舰艇和飞行器系统的功率及速度都有极大的提高,从而引起强烈地宽带随机振动和噪声。这些宽带震源将会激发起舰艇、飞行器结构及其电子设备的多峰谐振,使它们所遇到的振动问题变得愈加复杂,这是因为谐振响应所产生的结构疲劳破坏和由于受到过大的振动加速度而使电子设备失效的现象也愈加严重。这些问题若得不到妥善解决,轻者影响电子设备的工作性能,缩短疲劳寿命;重者还会引起严重故障,甚至造成失败。
The rapid development of modern nautical, aerospace and aerospace industries has greatly increased the power and speed of naval vessels and aircraft systems, causing intense broadband random vibration and noise. These broadband sources will stimulate the multi-modal resonance of ships, aircraft structures and their electronic equipment and complicate the vibration problems they encounter because of the structural fatigue damage caused by the resonant response and the vibration caused by excessive Vibration acceleration and the failure of electronic equipment is also more serious. If these problems are not properly resolved, the light affect the performance of electronic equipment, shorten the fatigue life; severe cases can cause serious problems, or even result in failure.