机械设计
機械設計
궤계설계
Journal of Machine Design
2009年
7期
9-11,37
,共4页
直齿锥齿轮%有限元%建模%齿根弯曲应力
直齒錐齒輪%有限元%建模%齒根彎麯應力
직치추치륜%유한원%건모%치근만곡응력
straight bevel gear%finite dement%modelling%bending stress of dedendum
研究了实现渐开线直齿锥齿轮的精确建模方法.从原理出发,利用渐开线方程生成了轮齿的精确齿形.在系统探讨了轮缘厚度、有效周向齿数、加载位置、重舍度、接触位置载荷分布、齿根过渡曲线等因素对齿根应力影响的基础上,建立了计算齿根弯曲强度的精确有限元模型;并用柔度矩阵法确定接触线上载荷分布,进行了齿根应力分析.计算结果与根据ISO算法得出的结论相吻合,证明了模型的正确性.
研究瞭實現漸開線直齒錐齒輪的精確建模方法.從原理齣髮,利用漸開線方程生成瞭輪齒的精確齒形.在繫統探討瞭輪緣厚度、有效週嚮齒數、加載位置、重捨度、接觸位置載荷分佈、齒根過渡麯線等因素對齒根應力影響的基礎上,建立瞭計算齒根彎麯彊度的精確有限元模型;併用柔度矩陣法確定接觸線上載荷分佈,進行瞭齒根應力分析.計算結果與根據ISO算法得齣的結論相吻閤,證明瞭模型的正確性.
연구료실현점개선직치추치륜적정학건모방법.종원리출발,이용점개선방정생성료륜치적정학치형.재계통탐토료륜연후도、유효주향치수、가재위치、중사도、접촉위치재하분포、치근과도곡선등인소대치근응력영향적기출상,건립료계산치근만곡강도적정학유한원모형;병용유도구진법학정접촉선상재하분포,진행료치근응력분석.계산결과여근거ISO산법득출적결론상문합,증명료모형적정학성.
Realization of the precision modelling method of in-volute straight bevel gear has been studied. Proceed from the princi-ple; the precision tooth shape of gear was generated by the use of involute equation. On the basis of discussing systematically the in-fluences of factors of rim thickness, effective circumferential direc-tional teeth number, load position, overlap ratio, load distribution of contact position, transition curve of dedendum etc. on the tooth root stress, the precision finite element model for computing the bending strength of dedendum was established. And using the flexi-bility matrix method to determine load distribution on the contact line and the tooth root stress analysis was carried out. The result of computation tallies with the conclusion educed according to the ISO algorithm, and the correctness of model was testified.