燃气涡轮试验与研究
燃氣渦輪試驗與研究
연기와륜시험여연구
GAS TURBINE EXPERIMENT AND RESEARCH
2013年
1期
22-25
,共4页
航空发动机%枞树形榫联接%结构设计%失效模式%结构参数%应力分析
航空髮動機%樅樹形榫聯接%結構設計%失效模式%結構參數%應力分析
항공발동궤%종수형순련접%결구설계%실효모식%결구삼수%응력분석
aero-engine%fir-tree tooth and groove connection%structure design%failure mode%structure parameter%stress analysis
论述了榫联接结构的设计特点及要求,特别是对枞树型榫联接的设计特点及榫联接结构的失效模式和振动问题进行了详细介绍.通过算例对枞树型榫头的结构参数与应力关系进行了分析,揭示了榫联接压力角,楔形角,齿形角与剪切应力、挤压应力、弯曲应力的相互关系,可为合理选择几何尺寸提供参考.结果表明:楔形角30°适宜,压力角适当大点,齿形角45°~55°适宜.
論述瞭榫聯接結構的設計特點及要求,特彆是對樅樹型榫聯接的設計特點及榫聯接結構的失效模式和振動問題進行瞭詳細介紹.通過算例對樅樹型榫頭的結構參數與應力關繫進行瞭分析,揭示瞭榫聯接壓力角,楔形角,齒形角與剪切應力、擠壓應力、彎麯應力的相互關繫,可為閤理選擇幾何呎吋提供參攷.結果錶明:楔形角30°適宜,壓力角適噹大點,齒形角45°~55°適宜.
논술료순련접결구적설계특점급요구,특별시대종수형순련접적설계특점급순련접결구적실효모식화진동문제진행료상세개소.통과산례대종수형순두적결구삼수여응력관계진행료분석,게시료순련접압력각,설형각,치형각여전절응력、제압응력、만곡응력적상호관계,가위합리선택궤하척촌제공삼고.결과표명:설형각30°괄의,압력각괄당대점,치형각45°~55°괄의.
The design features of groove and tooth connection structures are presented, the fir-tree connec?tion structures, also the failure mode and vibration problems of groove and tooth connection structures are particularly introduced in detail. Through the calculation and examples, the relationship between structure parameters and stress of the fir-tree connection structures was analyzed. The relationship between pressure angle, wedged angle, teeth angle, torque stress, bearing stress and bend stress which provided a reference to choose structure parameters of connection structure was revealed through the analysis. The results showed that wedged angle should be 30° , pressure angle could be larger in an appropriate way and teeth angle should be in the range of 45°~55°.
