Duncan WalkerDuncan Walker is well recognized internationally for knowledge of rotor dynamics, vibration, and balancing, has written numerous technical papers, and has served on a variety of American and International Standards committees dealing with machinery vibration and balancing. Mr. Walker served his industrial career at both Rolls-Royce Aero Engine Division (U.K.) and the General Electric Power Systems Division (U.S.) as an engineer in vibration research and large rotating machinery development and problem solving, as well as on a variety of managerial assignments. He lives in Ballston Lake, New York. Read More Read Less