Height frequency electro-hydraulic vibration exciter with 2D valve

Author

Xu Zibin ; Jianqing, Min ; Yingguo, Fang ; Bai Jiping ; Jian, Ruan

Author_Institution

MOE Key Lab. of Mech. Manuf. & Autom., Zhejiang Univ. of Technol., Hangzhou, China

fYear

2008

fDate

10-12 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

The electro-hydraulic exciter is characterized by the larger output force and amplitude. For the purpose of enhancing the frequency of electro-hydraulic vibration exciter, a new type of 2D digital directional control valve is presented. The configuration is designed with two motions freedom of a single spool, the rotary motion of the spool is driven by a stepper motor continually, the linear motion of the spool is actuated by another stepper motor with the eccentric mechanism, and the output flow rate can be controlled by changing the area of valve port periodically. It has advantage of simple configuration, anti-pollution, high frequency, no hysteresis and direct digital control. The input signal has a strict periodicity theoretically, and the variety regularity is sinusoidal wave.

Keywords

control system analysis; direct digital control; electrohydraulic control equipment; stepping motors; valves; vibrations; 2D digital directional control valve; 2D valve; amplitude; anti-pollution; direct digital control; eccentric mechanism; electro-hydraulic exciter; height frequency electro-hydraulic vibration exciter; linear motion; output flow rate; output force; single spool; sinusoidal wave; stepper motor; valve port; Bandwidth; Engine cylinders; Frequency; Hysteresis motors; Manufacturing automation; Materials testing; Motion control; Servomechanisms; Valves; Vibration control;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems and Control in Aerospace and Astronautics, 2008. ISSCAA 2008. 2nd International Symposium on

Conference_Location

Shenzhen

Print_ISBN

978-1-4244-3908-9

Electronic_ISBN

978-1-4244-2386-6

Type

conf

DOI

10.1109/ISSCAA.2008.4776406

Filename

4776406