电流变传动系统的时间序列建模

Time series modeling of electrorheological drive system

电流变传动机构是一种重要的、有发展前途的传动装置。文章开发一种双驱动式电流变传动机构 ,通过测试数据 ,用时间序列分析方法建立电流变传动系统的自回归求和模型 ,并求出系统的自功率谱密度函数。实验和理论推导结果表明时间序列分析方法用在电流变传动机构的建模中是有效的、可信的 ,具有推广意义。

Actuator utilizing electrorheological fluids (ERF) is a kind of important potential transmission devices. In this paper, an ER actuator with double driving discs is developed. Using the sampled signals, time series analysis (TSA) method is also introduced to establish the autoregressive integrated model of ER drive system. The auto-spectral density function is also derived. The experimental and theoretical results show that TSA method is efficient and convictive, and TSA method can be applied in other fields.