Considering the effect of planet's number on the dynamic characteristics of the planetary gear system, a translationtorsion lumped-parameter model of 2K-H spur planetary gear system was established. Through the an...Considering the effect of planet's number on the dynamic characteristics of the planetary gear system, a translationtorsion lumped-parameter model of 2K-H spur planetary gear system was established. Through the analysis of numerical solution, the results show that 1) When the planet's number is more than 3, the order of the natural frequency will become the same; 2) When the planet's number increases, the natural frequencies of planet mode remain invariant, but when it comes to rotational mode and translational mode, the higher order natural frequencies increase and the lower order natural frequencies decrease; 3) The planet's number has a great impact on the higher order natural frequencies and a little impact on the lower order natural frequencies; and 4) To avoid the resonance, we can appropriately increase or decrease the number of the planet.展开更多
利用大小两级载荷,对国产某汽车变速箱倒档圆柱齿轮单齿弯曲疲劳强度进行了试验.通过对试验数据的处理,表明该齿轮单齿弯曲对数疲劳寿命在高低载荷级下均呈正态分布,在高低载荷级下的成活率分别与其弯曲疲劳寿命对数之间存在线性函数关...利用大小两级载荷,对国产某汽车变速箱倒档圆柱齿轮单齿弯曲疲劳强度进行了试验.通过对试验数据的处理,表明该齿轮单齿弯曲对数疲劳寿命在高低载荷级下均呈正态分布,在高低载荷级下的成活率分别与其弯曲疲劳寿命对数之间存在线性函数关系,以及不同成活率下的p S N曲线和齿轮单齿弯曲疲劳极限.为进一步研究齿轮弯曲疲劳强度提供了基本曲线和数据.展开更多
基金Funded by the Key Research and Development Project in Henan Province(No.142102210067)
文摘Considering the effect of planet's number on the dynamic characteristics of the planetary gear system, a translationtorsion lumped-parameter model of 2K-H spur planetary gear system was established. Through the analysis of numerical solution, the results show that 1) When the planet's number is more than 3, the order of the natural frequency will become the same; 2) When the planet's number increases, the natural frequencies of planet mode remain invariant, but when it comes to rotational mode and translational mode, the higher order natural frequencies increase and the lower order natural frequencies decrease; 3) The planet's number has a great impact on the higher order natural frequencies and a little impact on the lower order natural frequencies; and 4) To avoid the resonance, we can appropriately increase or decrease the number of the planet.
文摘利用大小两级载荷,对国产某汽车变速箱倒档圆柱齿轮单齿弯曲疲劳强度进行了试验.通过对试验数据的处理,表明该齿轮单齿弯曲对数疲劳寿命在高低载荷级下均呈正态分布,在高低载荷级下的成活率分别与其弯曲疲劳寿命对数之间存在线性函数关系,以及不同成活率下的p S N曲线和齿轮单齿弯曲疲劳极限.为进一步研究齿轮弯曲疲劳强度提供了基本曲线和数据.
