冲床是工业中的一种重要噪声源。冲床的冲击力引起楼板振动以致使操作者感到疲劳,且有可能损坏建筑物。这种声音也可能以噪声的形式辐射到建筑物中本来很宁静的部分。为了减少这种有害的影响,冲床被放在富有弹性的机械垫板上,本文作者对测定垫板效应的研究结果作了概括的论述。这项研究虽仅限于约2000牛顿能力的冲床,但对于其他类型的机械也同样有效。 Punch is an important noise source in industry. The impact of the punch causes the floor to vibrate so that the operator feels tired and may damage the building. This sound may also be radiated to the otherwise quiet part of the building in the form of noise. In order to reduce this detrimental effect, the punch is placed on a flexible mechanical pad and the author gives a general overview of the results of the study of the pad effect. Although this study is limited to punches of about 2000 Newton capacity, it is equally effective with other types of machinery.