均布力作用下有限板面导纳的测量方法

Method of Measurement of Area Mobility of a Finite Plate Subject to a Uniform Force Excitation

为了更准确地描述实际结构之间振动能量的传递,针对有限板支撑结构,研究其二维面导纳的试验测量方法。推导出了避免直接模拟激励状态来测量均布力作用下有限板面导纳的计算公式。创建了具有简支边界条件的薄板实验模型。根据实验结果分析了测量误差产生的原因。得到了较理想的受均布力激励时的有限板面导纳的测量方法。

In order to describe more accurately power transmission between practical structures, a method for experimental measurement of two-dimensional area mobility of finite plate supporting structures is investigated. The formula and method of measuring area mobility of a finite plate subject to a uniform force excitation is derived without applying the excitation directly to the plate. The result is verified by comparing it to the theoretically calculated result. The experiment model with simply-supported edges is created. The factors causing the measurement errors are analysed. According to the experiment result, it can be seen that the method of the measurement of area mobility of a finite plate subject to a uniform force excitation is ideal.