SAE paper 820752噪声控制用的阻尼复合板降低轿车发动机噪声是汽车工业的重要技术课题之一。现已研制出一种振动阻尼复合锕板。该板是由两层钢板及夹在其中的粘弹性合成树脂层制成。复合钢板的良好的振动阻尼可由80℃时“减少因子”(η)≥0.5看出。把这种复合钢板用作轻便发电机机罩时,可以降低电动机噪声约3dB。这表明,复合钢板可应用于需降低噪声的汽车零部件。本文叙述了其 SAE paper 820752 Damping composite panels for noise control Reducing car engine noise is one of the major technical topics in the automotive industry. Has developed a vibration damping compound actinium plate. The board is made of two layers of steel plates and a viscoelastic synthetic resin layer sandwiched between them. The good vibration damping of the composite steel plate can be seen from the “reduction factor” (η) ≥0.5 at 80 ° C. When this composite steel plate is used as a light-weight generator hood, the motor noise can be reduced by about 3 dB. This shows that the composite steel plate can be applied to reduce the noise of automotive components. This article describes it