STUDY ON THE DYNAMIC STABILITY OF REPULSIVE MAGNETIC-LEVITATION SYSTEMS - (OPTIMAL-CONTROL OF ACTIVE SECONDARY SUSPENSION)

被引：10

作者：

NAGAI, M

TANAKA, S

机构：

来源：

JSME INTERNATIONAL JOURNAL SERIES III-VIBRATION CONTROL ENGINEERING ENGINEERING FOR INDUSTRY | 1992年 / 35卷 / 01期

关键词：

MAGNETIC LEVITATION; VEHICLE DYNAMICS; VEHICLE STABILITY; ACTIVE SECONDARY SUSPENSION; PNEUMATIC ACTUATOR; OPTIMAL CONTROL;

D O I：

10.1299/jsmec1988.35.102

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Repulsive magnetic levitation systems for vehicle suspensions are statically stable but dynamically of zero or low damping characteristics. In paticular, it is reported that electrodynamic suspensions have negative damping in some operating conditions. In this paper, an active suspension is applied to the secondary suspension of the zero-damping magnetic levitation system in order to improve the dynamic stability of both the car body and truck. The active suspension with a pneumatic actuator is designed by optimal regulator theory. The kinetic energy and the potential energy of both the car body and truck are evaluated according to an evaluation criterion. The two-degrees-of-freedom suspension model of this MAGLEV system is analyzed theoretically and compared with the experimental results, The theoretical analysis and experimental results show that the dynamic stability is much improved by the active secondary suspension.

引用

页码：102 / 108

页数：7