As an intelligent device, the magnetorheological (MR) damper has received extensive attention in many fields. However, in the real-time control system, it is still extremely necessary to develop a simple, accurate and invertible dynamic model of the MR damper. In this work, a new invertible MR dynamic model based on sigmoid function is proposed. According to the experimental data of a common MR damper, it is assumed that the damping force at zero velocity under constant current is only related to current and independent of the excitation frequency. The preliminary sigmoid model based on this hypothesis can better adapt to different frequency excitations while reducing the complexity of the model. In addition, according to the parameter analysis of the proposed preliminary model, the relationship between the parameters and the input current is reasonably simplified, so that the final model can meet reversibility requirements in the control system while ensuring accuracy. In order...

中文翻译：

---

基于S形函数的磁流变阻尼器可逆模型

作为一种智能设备，磁流变（MR）阻尼器已在许多领域受到广泛关注。但是，在实时控制系统中，仍然非常有必要开发一个简单，准确和可逆的MR阻尼器动态模型。在这项工作中，提出了一种新的基于S形函数的可逆MR动态模型。根据普通MR阻尼器的实验数据，假定在恒定电流下零速下的阻尼力仅与电流有关，而与激励频率无关。基于该假设的初步乙状结肠模型可以更好地适应不同的频率激励，同时降低模型的复杂性。另外，根据建议的初步模型的参数分析，参数和输入电流之间的关系得到了合理简化，从而使最终模型能够在确保精度的同时满足控制系统中的可逆性要求。为了...