Bifurcation onset delay in magnetic bearing systems by time varying stiffness

详细信息    查看全文

• 作者：M.R. Ghazavi^a ; ^{ghazavim@modares.ac.ir} ; Q. Sun^b
• 关键词：Magnetic bearings ; Rotor imbalance ; Geometric coupling ; Nonlinear control ; Poincaré ; map ; Bifurcation ; Mathieu's equation
• 刊名：Mechanical Systems and Signal Processing
• 出版年：2017
• 出版时间：June 2017
• 年：2017
• 卷：90
• 期：Complete
• 页码：97-109
• 全文大小：1143 K
• 卷排序：90

文摘

System dynamic responses are analyzed using bifurcation diagrams for different unbalance parameters and geometric couplings. The results for a system with a time varying stiffness are compared with a system without it. Delayed bifurcation onsets are observed which indicate an improved rotor performance.