A comparison was made between Mg alloy and A3 steel on weight, bending, sound absorption, and vibration conditions. In this study, a swivel plate, which is used in rotating car seats, is to be taken into consideration for finding bending, natural frequency, and frequency under static loading conditions. The swivel plate is generally made up of A3 steel plate; instead, we have replaced that with Mg alloy (AZ91D) plate. Stiffness, flexural strength, natural frequency, frequency under different static loading conditions, and sound absorption capacity were obtained through experimental methods. Finally, it was concluded that the damping capacity of Mg alloy of swivel plate is higher, has better stiffness, and incurred weight reduction by 26.58% less than that of the A3 steel. Also, the Mg alloy material exhibits better specific flexural strength, and specific flexural modulus and sound absorption coefficient are 11.76% and 25% higher than those of A3 steel at higher frequency level (2000 Hz) and at lower frequency level (100 Hz).

中文翻译：

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AZ91D旋转板的弯曲，吸声和阻尼特性研究

对镁合金和A3钢的重量，弯曲，吸声和振动条件进行了比较。在这项研究中，要考虑用于旋转汽车座椅的旋转板，以发现弯曲，固有频率和静态载荷条件下的频率。旋转板通常由A3钢板制成；取而代之的是，我们用镁合金（AZ91D）板代替了它。通过实验方法获得了刚度，抗弯强度，固有频率，不同静态载荷条件下的频率以及吸声能力。最后得出的结论是，旋转板镁合金的阻尼能力更高，具有更好的刚度，并且比A3钢减少了26.58％的重量。而且，镁合金材料具有更好的比弯曲强度，