线性摩擦焊接摩擦振动伺服系统稳定性分析

doi:10.13385/j.cnki.vacuum.2021.02.16

Abstract

Abstract: In recent years, linear friction welding technology has attracted much attention due to its high efficiency and high quality. This paper briefly introduces the working principle and system composition of linear friction welding,and designs a set of hydraulic vibration servo system according to the practical requirements of welding machine. Firstly, according to the technical parameters of the vibration servo system, the required oil source flow, maximum acceleration, speed and other parameters are calculated. According to the calculation results, the key power components and vibration servo valve in the hydraulic system are then designed and selected. The mathematical model of the friction vibration system is established, and the main parameters are calculated. The mathematical model is simulated, and Bode diagram of the system are drawn. Combined with the simulation results and Bode diagram, the scheme is feasible and can be applied, which provides a reference for future equipment development.

Key words: linear friction welding, friction vibration, hydraulic servo, stability

CLC Number:

TP273

LIU Lei. Stability Analysis of Linear Friction Welding Friction Vibration Servo System[J].VACUUM, 2021, 58(2): 82-85.

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