哈尔滨商业大学学报（自然科学版）2012，Vol.28Issue(3)：337-340,356,5.
磁流变减振系统的双谱分析研究
Bispectrum analysis of magnetorheological damping system
摘要
Abstract
The magnetorheological damping system is nonlinear, which is made up of controllable producing device, signal collecting device, computer software for dynamic analysis, magnetorheological damper etc. It is important to analyze the nonlinear system for structure innovation or compensation. Bispectrum analysis was taken as a new powerful technique in signal processing, which could describe nonlinear coupling, restrain Gaussian noise and reserve phase component. AR bispectrum were put forward for investigating the dynamic characteristics of the magnetorheological vibrant device. When a zero mean and non-Gaussian white noise interferes with the device, a time series model, proposed as AR ( autoregressive) model, was conducted by using the sampled experimental data. The experimental results showed that bumps of the bispectrum was decreased with increasing the system inputting currents , and the distribution of the values and phase were become harmonious. It was indicated that the bispectrum spectrum analysis methods were feasible and effective for investigation of magnetorheological damping device.关键词
减振系统/磁流变流/振动/双谱Key words
damping system/ magnetorheological fluids/ vibration/ bispectrum分类
信息技术与安全科学引用本文复制引用
张福江,李丽娜..磁流变减振系统的双谱分析研究[J].哈尔滨商业大学学报（自然科学版）,2012,28(3):337-340,356,5.基金项目
福建省教育厅A类科技研究项目(JA10221) （JA10221）
福建工程学院科研基金项目(E0100345). （E0100345）
