1988 Fiscal Year Final Research Report Summary

PARAMETER CONTROL OF VARIABLE STRUCTURE SYSTEMS (DEVELOPMENT OF SEMI-ACTIVE VIBRATION CONTROL SYSTEMS)

Research Project

Project/Area Number	62550183
Research Category	Grant-in-Aid for General Scientific Research (C)
Allocation Type	Single-year Grants
Research Field	機械力学・制御工学
Research Institution	TECHNOLOGY TOKYO METROPOLITAN UNIVERSITY
Principal Investigator	IWATA Yoshiaki TECHNOLOGY TOKYO METROPOLITAN UNIVERSITY, 工学部, 助手 (70087196)
Co-Investigator(Kenkyū-buntansha)	UEDA Koichi TECHNOLOGY TOKYO METROPOLITAN UNIVERSITY, 工学部, 助手 (35287177)
Project Period (FY)	1987 – 1988
Keywords	Variable Structure / Parameter Control / Semi-active Suspension / Sky-hook Damper / スカイフックダンパ / 磁性流体 / 可変粘性 / 可変剛性
Research Abstract	When compared with active suspensions, semi-active suspensions have the advantages of simplicity of hardware requirement; lower capital and operational cost; and the desirable stability and reliability behavior that characterizes passive devices. They can achieve performance close to that of active devices. Generally, semi-active devices use a damper in which the damper coefficient is variable. This study proposes a new semi-active suspension in which both damper coefficient and spring constant can be modulated at high band width. The control strategy for this device uses only directry measurable relation position in vehicle applications. Simulations and experimental studies show that the proposed system is compared to passive and ordinary semi-active suspensions.