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EXCITE Timing Drive is used in the design andanalysis of valve trains to meet the requirements ofdynamics and durability whilst reducing friction andnoise excitation.The output shows the dynamic components of allmodeled valve train elements. The periods ofcontact loss between single valve train elements,the dynamic behavior during valve open phase,and impact forces at valve closing can bedetermined. The results include the excitationforces causing vibration and noise of the enginestructure.Therefore, the results can be used to assessmodifications of cams and valve trains with respectto dynamic loads, valve timing and noise due to impacts in the valve train.The real valve train is described by a lumped mass system. Because of the non-linearity, the dynamicbehavior (motion, forces) of the elements of this system is...