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由于能量耗散生热、环境温度以及通电线圈产生的热能会使磁流变阻尼器在很大的温度范围内工作,温度对磁流变阻尼器输出阻尼力有很大影响。因此有必要研究温度对磁流变阻尼器输出特性的影响,建立能在较大温度范围预测磁流变阻尼器阻尼力的数学模型。文章从Bouc-Wen模型出发,通过温度试验数据,建立了能在较大电流范围和温度范围内使用的数学模型,并用1st Opt软件的通用全局优化算法(UGOA)识别模型参数,结果表明该模型能很好地体现磁流变阻尼器不同温度时的阻尼特性。
Due to the energy dissipation heat, the ambient temperature and the heat generated by the energized coil will make the MR damper work in a wide temperature range, the temperature of the MR damper output damping force has a great impact. Therefore, it is necessary to study the influence of temperature on the output characteristics of MR damper and to establish a mathematical model that can predict the damping force of MR damper over a wide temperature range. Based on the Bouc-Wen model, a mathematical model that can be used in a wide range of current and temperature is established based on the Bouc-Wen model. The parameters of the model are identified by the first global optimization algorithm (UGOA) of 1st Opt. The results show that the model It can well reflect the damping characteristics of MR damper at different temperatures.