Measuring Rolling Vibrations of Hypoid Gears

Rolling vibrations of hypoid gears resulting from nonconjugacy of the teeth are explained, measured, and simulated using an electromechanical exciter system. Laboratory experiments have shown that there is a relationship between angular displacement error, acoustical gear noise, and structure-borne vibration. A new hypoid gear testing machine has been developed for making a rapid quality measurement based on the excitation of the tooth mesh frequency and its harmonics.