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工程机械的噪声主要来自发动机振动、传动系统和液压系统等的运转、轮胎与路面的摩擦、车体与空气的摩擦以及车体钢板与其他部件的共振等。这些噪声通过空气或固体件的振动传递到驾驶室,从而导致驾驶室内噪声过大。
The noise of construction machinery mainly comes from the operation of engine vibration, transmission system and hydraulic system, the friction between tire and road surface, the friction between body and air as well as the resonance between body steel plate and other components. The noise is transmitted to the cab through the vibration of air or solid parts, causing excessive noise in the cab.