... characterizations of coefficients of restitution (COR), which is defined as rebound velocity divided by impact velocity of a projectile, was made using various types of gas-turbine grade CMCs in conjunction with dynamic imaging and data-acquisition systems. Both the impact aspects and the COR were characterized...

... (mechanical) valves compressor station nozzle check valves compressor surge flow oscillations vibration impact velocity check valve dynamics check valve design spring stiffness In a natural gas compressor station, check valves are critical elements in the design and operation...