【摘 要】
：
The dynamic behavior of the valvetrains for a gasoline engine is simulated by using a multi-valvetrain dynamic model, of which the stiff parameters are caculated by finite element method.Then, the sim
【机 构】
：
Chine FAW Group Corporation R&D Center,State Key Laboratory of Comprehensive Technology on Automobil
论文部分内容阅读
The dynamic behavior of the valvetrains for a gasoline engine is simulated by using a multi-valvetrain dynamic model, of which the stiff parameters are caculated by finite element method.Then, the simulation results of camshaft torques and valve forces are validated by experiments, and the calculated data are consistent with the test data.Based on the correct model, the sensitivities of dynamic loads influencing NVH of the engine directly are analysed, and the primary influencing factors of the fluctuation of camshaft force,torque and spring force have been found, and further dynamic force optimization direction for NVH performance of valve train have been pointed out.
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