document: The vibration reliability of poppet and contoured actuator valves The problem of selecting the shape of the actuator valve -LRB- the final control valve -RRB- 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
doc_bio_tags: O B I O O O B I I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O B I I O B I O O O O