摘要
比较了现行航空工业标准(HB/Z 84.1~3-84)与国际标准化组织(ISO 6336-1~6336-3:2019)标准的齿面接触疲劳强度和齿根弯曲疲劳强度基本计算公式,结合航空发动机减速器设计特点和具体设计实例,详细分析了两标准基本计算公式中各修正系数种类、含义和取值上的差异。研究结果表明,ISO标准比HB标准考虑的影响因素更全面,其中ISO中引入的不均载系数和轮缘厚度系数对航空齿轮强度计算的影响不可忽略;螺旋角系数和的计算公式差异较大但ISO标准更具信服力;对于内齿轮,齿形系数的较大差异导致计算应力值差异较大。
In this paper,the basic formulae of tooth surface durability(pitting)and tooth root bending strength are compared between the current aviation industry standard(HB/Z 84.1~3-84)and the International Organization for Standardization(ISO 6336-1~6336-3:2019)standard;based on the design features and concrete design examples of aero engine gearbox,differences of the type,meaning and selection of correction coefficients in the two basic calculation formulas are analyzed in detail.The study indicates that the ISO standard has a wider considerations on influence coefficients than the HB standard,in which the influence of mesh load factor and rim thickness factor on the tooth strength calculation cannot be ignored;the calculation formula of helix angle factor and is quite different,but the ISO standard is more convincing;as for the internal gear,the difference of form factor leads to the difference of calculated stress.
作者
张丽娜
相涯
丁金涛
ZHANG Li-na;XIANG Ya;DING Jin-tao(AECC Hunan Aviation Powerplant Research Institute,Zhuzhou Hunan 412002,China;National Defense Key Laboratory of Science and Technology on Helicopter Transmission,Zhuzhou Hunan 412002,China)
出处
《机械研究与应用》
2021年第3期199-202,共4页
Mechanical Research & Application
