高冲击载荷作用下筒型电磁阻尼器动力学特性研究

Study on Dynamics Characteristics of Cylindrical Electromagnetic Damper Under High Impact Load

为探究筒型电磁阻尼器在高冲击环境下的制动效果,开展了高冲击载荷作用下筒型电磁阻尼器的动力学特性研究。基于ANSYS Maxwell电磁学有限元软件建立筒型电磁阻尼器二维数值仿真模型;通过对数值模型进行计算,获得筒型电磁阻尼器在冲击载荷作用下的阻尼输出特性和动力学特性,研究分析了内筒和外筒电磁阻尼力的分布特点;重点探究了导磁筒厚度、导电筒厚度、气隙宽度以及磁靴厚度等参数对动力学特性的影响。研究结果表明:双筒型电磁阻尼器的阻尼力主要由内外导电筒提供,外导电筒占据主导部分;内外导磁筒厚度在一定范围内不会对阻尼力产生影响。

In order to explore the braking effect of cylindrical electromagnetic damper under high impact environment,the dynamics characteristics of cylindrical electromagnetic damper under high impact load were studied.The two-dimensional numerical simulation model of the cylindrical electromagnetic damper was established based on the ANSYS Maxwell electromagnetic finite element software.The characteristics of damping output and dynamics of the cylindrical electromagnetic damper under the impact load were obtained by calculating the numerical model,with the distribution characteristics of the electromagnetic damping force of the inner and outer cartridges studied and analyzed.The focus of exploration is on the influence of parameters such as the thickness of the magnetic conductive cylinder,the thickness of the electric conductive cylinder,the width of the air gap and the thickness of the magnetic shoe on the dynamic characteristics.The results show that the damping force of the double-cylinder electromagnetic damper is mainly provided by the inner and outer conductive cylinders,and the outer conductive cylinder occupies the dominant part;the thickness of the inner and outer magnetic conductive cylinders will not affect the damping force within a certain range.