The nonlinear mathematic model for the valve train system is set up and its dynamic characteristics are analyzed.
建立系统非线性数学模型，并分析配气机构的动态特性。
In this calculation model for the movement rule of valve train system with rocker, the position of every component is determined, so it has a high precision.
建立摇杆式配气机构运动规律的精确计算模型，给出了每一时刻下配气机构各部件的准确位置，具有较高的精度。
Valve train system is an important part of automobile engine and its designing level has great influence on the performance, reliability and life-span of engine.
配气机构是发动机的重要机构之一，其设计好坏对发动机的性能、可靠性和寿命有着很大的影响。
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