Two kinds of valve velocity data were got from valve acceleration integral and displacement differential.
由气门加速度积分和气门升程微分得到两路气门速度信号。
It is unavoidable for the shifting problem of piezoelectric acceleration sensor in the experiment of valve dynamic characteristic.
压电式加速度传感器的漂移问题在气门动态特性试验中难以避免。
Small shifting of acceleration signal will result in the abnormal alteration of valve velocity.
气门加速度信号的微小漂移，将导致积分的速度信号严重失真。
The proportional valve can be opened sufficiently slowly to provide a smooth acceleration of the lift up to its maximum speed.
比例阀能够足够慢地打开以提供一个平滑加速度使电梯达到最大速度。
The results show that, the natural frequency, dynamic amplification factor and acceleration root of mean square of seat suspension will decrease with the increase of proportional valve input voltage.
研究结果表明，座椅悬架的固有频率、位移传递率及加速度均方根值均随比例阀输入电压的增大而减小；
The smoothness of acceleration and deceleration process is a serious problem in valve control system with high inertia loads.
大惯性负载加减速过程的平稳性问题严重影响了阀控系统的动态特性。
In this paper, kinematics of upper air valve unit is analyzed. The displacement, velocity and acceleration of air valve are calculated by accurate and approximate methods.
对顶置式气门机构进行了运动学分析，通过平底推杆的运动规律求得气门的升程、速度和加速度，分别给出了精确解和近似解。
It is found that the displacement, velocity and acceleration of air valve are unsymmetrical although the shape of CAM is symmetrical.
计算结果表明，对称凸轮会得到一个不对称的气门运动规律。
It is found that the displacement, velocity and acceleration of air valve are unsymmetrical although the shape of CAM is symmetrical.
计算结果表明，对称凸轮会得到一个不对称的气门运动规律。
应用推荐