一、前言 随着现代科学技术的飞速发展,火箭,卫星、飞船、舰艇、火车、汽车等的功率和速度都有很大提高,这必然会带来宽频带的随机振动和噪声,並将激发起结构和仪器的许多共振峰,导致结构破坏、仪器失灵。这类振动和噪声的控制就成了必要的先决条件。另外,振动和噪声会对人们的正常生活、工作甚至身体健康带来不良的影响,因此许多国家都拟定了噪声标准並以法律形式固定下来。 I. INTRODUCTION With the rapid development of modern science and technology, the power and speed of rockets, satellites, spacecraft, ships, trains and automobiles have greatly increased. This will inevitably bring about random vibration and noise in a wide frequency band and will stimulate Many formations and the formant of the instrument, resulting in structural damage and failure of the instrument. This type of vibration and noise control becomes a necessary prerequisite. In addition, vibration and noise can have adverse effects on people’s normal life, work and even physical health. Therefore, many countries have formulated noise standards and fixed them by law.