Example shows that contact ratio and overlap ratio has the effect on the volume oil and the flow pulsating ratio 本文用实例说明了齿轮啮合重合系数对齿轮泵性能参数的影响。
Firstly the reason of interference of flank is analyzed and contact ratio and overlap ratio and the point of profile modification are calculated according to two conditions 本文首先分析了齿轮发生啮合干涉的原因,并分两种情况计算了了齿轮的重合系数和修形位置。
Finally there were 7 common characteristic peaks , overlap ratio of the characteristic peaks were more than 70 % , and the range of relative peak aera was less than 10 % 冬虫夏草cs - js菌系共有特征峰7个,特征峰的重叠率大于70 ,特征峰的相对峰面积范围小于10 。
In laser surface hardening for the mould - roller , the hardened depth was controlled by laser specific energy density ( p / dv ) , and proper overlapping ratio is the technical key . 3 在模切辊激光表面强化中,激光比能密度p dv是影响相变硬化层深度的主要因素,搭接率的正确选取是模切辊表面强化技术的关键。
Then a formula about flow of the gear pump and the coefficient of engagement overlap to find is obtained by area method . through analysis contact ratio and overlap ratio has the effect on the volume oil and the flow pulsating ratio 然后采用面积法求得齿轮泵流量与齿轮啮合重合系数的关系式,研究了齿轮啮合重合系数对齿轮泵困油和流量脉动率的影响。
Finally , a modified planar subarray processing ( psap ) algorithm is presented . it improves the computation efficiency by solving the problem of large data overlapped ratio of psap algorithm in uwb - sar imaging . the quality of imaging is enhanced by change the keystone formatin and using the whole energy of the signal . the method of designing and implementing the window is given 最后提出了一种改进的平面子孔径处理( psap )算法,解决了在uwb - sar成像处理时, psap算法处理的数据交叠比很大的问题,提高了计算效率;改进了梯形变换,利用了信号的全部信息,提高了图像质量;给出了foldfft中窗函数的设计和实现方法;提出了用czt结合fft实现尺度变换,用尺度变换实现插值运算的方法,进一步提高了算法的计算效率。