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首页> 外文期刊>International journal of design engineering >Damping capacity of various materials with non-uniform intensity of pressure distribution at the interfaces of a layered and jointed structure
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Damping capacity of various materials with non-uniform intensity of pressure distribution at the interfaces of a layered and jointed structure

机译：层状连接结构界面处压力分布强度不均匀的各种材料的阻尼能力

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摘要

The present work investigates the mechanism of damping in layered and jointed bolted structures of aluminium, copper and mild steel materials with non-uniform intensity of pressure distribution at the interfaces. Extensive experiments are conducted to validate the numerical analysis. The interface pressure, diameter of the bolts, material, coefficient of friction and dynamic slip ratio at the interfaces, washer, and frequency of excitation are found to play major roles on the damping capacity of structures. It is established that the damping capacity of bolted structures can be enhanced substantially with an increase in number of layers and decrease in diameter of the bolts along with use of washers. It is further found that the aluminium material in layers contribute more to the damping of structures and this design concept can be effectively used to select a proper material depending on the required damping capacity in real industrial applications.
机译：本工作研究了铝，铜和低碳钢的分层和连接螺栓连接结构中的阻尼机制，这些阻尼在界面处具有不均匀的压力分布强度。进行了广泛的实验以验证数值分析。发现界面压力，螺栓直径，材料，界面处的摩擦系数和动态滑移率，垫圈和激励频率对结构的阻尼能力起着重要作用。已经确定，随着垫圈的使用，随着层数的增加和螺栓直径的减小，螺栓结构的阻尼能力可以大大提高。进一步发现，层状的铝材料对结构的阻尼起了更大的作用，这种设计理念可以有效地用于根据实际工业应用中所需的阻尼能力来选择合适的材料。

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