New Idea for Hydraulic Testing Machine with Stress and Strain Rates Controlled and Its Realization
Based on the relationship between pressure and flux of thin-walled hole, a new idea is proposed for hydraulic testing machine. Using transducer and computer technique, hydraulic system is formed by SCM(single chip micyoco), needle valve, frequency converter and electric machine, to complete stress and strain rates control. This idea has been realized in traditional hydraulic pressure testing machine and hydraulic universal testing machine, and some excellent results have been obtained. According to the theory and practice, the new idea can meet the need of constant stress and strain rates testing, and replace proportional valve and servo valve, thereby it can be widely applied for various hydraulic testing machines.
testing machine stress rate strain rate needle valves
Du Jingqing Gao Shiqiao Niu Shaohua
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
国际会议
长沙
英文
1938-1942
2010-05-11（万方平台首次上网日期，不代表论文的发表时间）