Variable speed hydraulic coupling fluid-solid coupling and vibration characteristics

As China's economic development, the equipment used in various industrial fields power increases very fast, especially in large pumps and fans increasing the amount of the urgent need for high-power energy-saving products governor. High speed hydraulic coupling as an ideal energy-saving speed products are widely appreciated and applied. Variable speed  Hydraulic tube fittings  coupling at the input speed is constant, by changing the working chamber filling rate to meet the load requirements, and other industrial equipment in the transmission when matched with a smooth start, stepless, torsional vibration impact mitigation equipment to improve transmission quality and many other advantages, and the application speed fluid coupling drive after saving effect is very significant, the greater the power working machine with better energy saving features. Our hydraulic manufacturer does not yet have independent research and high-power variable speed hydraulic coupling products, the ability for our high-power variable speed hydraulic coupling product design in the face of some of the key technical issues, this paper state High Technology research and Development Program (863 Program) special issue "Large hydraulic pump and fan speed control key technology research" (2007AA05Z256), for fluid coupling fluid-structure interaction problems and vibration problems to do a more systematic study . Introduced a system of fluid-solid coupling theory and numerical methods.