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在大多数机械产品中,例如空气调节器、摩托雪撬、链锯和锻机等,噪音并不影响其使用性能。但是,许多产品对其固有噪音极为敏感,例如录音系统、有声电影摄影机,以及潜水艇发动机系统等,噪音的存在显然影响其性能。目前已有数百种工程产品,必须尽可能设计得无声。控制噪音及振动的实际途径一般有如下的两个基本方案,一是隔离——减少声源(移动部件)和能够辐射能量的表面之间的能量传递;另一是消耗——在结构的某些部份使用隔离衬垫等衰减能量。
In most mechanical products, such as air conditioners, motorized sleds, chain saws and forging machines, the noise does not affect its serviceability. However, many products are extremely sensitive to their inherent noise, such as recording systems, audio cinema cameras, and submarine engine systems. The presence of noise obviously affects their performance. There are already hundreds of engineering products that must be designed to be as quiet as possible. The practical way to control noise and vibration generally has two basic solutions as follows: Isolation - to reduce the energy transfer between the sound source (moving parts) and the surface capable of radiating energy; the other is to consume - in the structure of a Some of the use of isolation pads and other energy attenuation.