A semi-active damper in vertical secondary suspension for the comfort increase in passenger trains

被引：0
|
作者：
Ripamonti, Francesco [1 ]
Chiarabaglio, Andrea [1 ]
Resta, Ferruccio [1 ]
机构：
[1] Politecn Milan, Dept Mech, Via La Masa 1, I-20156 Milan, Italy
来源：
ACTIVE AND PASSIVE SMART STRUCTURES AND INTEGRATED SYSTEMS 2017 | 2017年 / 10164卷
关键词：
hydraulic dampers; twin-tube shock absorber; semi-active damper; VIBRATION CONTROL;
D O I：
10.1117/12.2258225
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Passive oil dampers for railway vehicles present a damping and stiffness characteristics, which depend from excitation history. This behaviour is not acceptable for many high-performance applications. A mechatronic approach, able to continuously adjust the damping coefficient according to the operation requirements, represents a very attractive and smart solution. In this paper, a control strategy for semi-active dampers of train vertical secondary suspensions is presented. The controller aims at assuring the maximum available damping at low frequencies, while at high frequencies minimizes the force transmitted to the carbody that excites the bending modes.
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页数：11
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