title: The vibration reliability of poppet and contoured actuator valves
abstract: The problem of selecting the shape of the actuator valve (the final control valve) itself is discussed; the solution to this problem will permit appreciable dynamic loads to be eliminated from the moving elements of the steam distribution system of steam turbines under all operating conditions
keyphrases: vibration reliability contoured actuator valves moving elements steam distribution system steam turbines actuator valve shape selection poppet actuator valves dynamic loads elimination