论文摘要
Electro-hydraulic vibration equipment（EHVE） is widely used in vibration environment simulation tests, such as vehicles, weapons, ships, aerospace, nuclear industries and seismic waves replication, etc., due to its large output power, displacement and thrust, as well as good workload adaptation and multi-controllable parameters. Based on the domestic and overseas development of high-frequency EHVE, dividing them into servo-valve controlled vibration equipment and rotary-valve controlled vibration equipment. The research status and progress of high-frequency electro-hydraulic vibration control technology（EHVCT） are discussed, from the perspective of vibration waveform control and vibration controller. The problems of current electro-hydraulic vibration system bandwidth and waveform distortion control, stability control, offset control and complex vibration waveform generation in high-frequency vibration conditions are pointed out. Combining the existing rotary-valve controlled high-frequency electro-hydraulic vibration method, a new twin-valve independently controlled high-frequency electro-hydraulic vibration method is proposed to break through the limitations of current electro-hydraulic vibration technology in terms of system frequency bandwidth and waveform distortion. The new method can realize independent adjustment and control of vibration waveform frequency, amplitude and offset under high-frequency vibration conditions, and provide a new idea for accurate simulation of high-frequency vibration waveform.
论文目录
文章来源
类型: 期刊论文
作者: Yi Liu,Tao Wang,Guofang Gong,Rujun Gao
来源: Chinese Journal of Mechanical Engineering 2019年06期
年度: 2019
分类: 工程科技Ⅱ辑
专业: 机械工业
单位: Ningbo Institute of Technology, Zhejiang University,State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University,Ningbo Research Institute, Zhejiang University
基金: Supported by National Natural Science Foundation of China.(Grant Nos.51605431,51675472)
分类号: TH113.1
页码: 11-26
总页数: 16
文件大小: 2422K
下载量: 56