航空科学技术
航空科學技術
항공과학기술
AERONAUTICAL SCIENCE AND TECHNOLOGY
2014年
9期
24-27
,共4页
航空结构%螺栓连接%预紧力%疲劳
航空結構%螺栓連接%預緊力%疲勞
항공결구%라전련접%예긴력%피로
aeronautical structure%bolt conjunction%preload%fatigue
分析了航空结构的螺栓连接受力并推导了螺栓载荷、螺栓刚度、被连接件刚度等计算公式，分析了螺栓载荷在结构加载过程中的变化规律，讨论了螺栓预紧力对连接结构疲劳寿命的影响，给出了螺栓预紧力的参考取值及其范围，可供结构强度工程设计人员参考使用。
分析瞭航空結構的螺栓連接受力併推導瞭螺栓載荷、螺栓剛度、被連接件剛度等計算公式，分析瞭螺栓載荷在結構加載過程中的變化規律，討論瞭螺栓預緊力對連接結構疲勞壽命的影響，給齣瞭螺栓預緊力的參攷取值及其範圍，可供結構彊度工程設計人員參攷使用。
분석료항공결구적라전련접수력병추도료라전재하、라전강도、피련접건강도등계산공식，분석료라전재하재결구가재과정중적변화규률，토론료라전예긴력대련접결구피로수명적영향，급출료라전예긴력적삼고취치급기범위，가공결구강도공정설계인원삼고사용。
The load analyzing of aeronautical structures which connected together had been done, and the computation formulae for bolt load, bolt stiffness and stiffness of connected structures had been deduced. The regularity for change of bolt load during structure loading had been analyzed. The influence of bolt preload on the structure life had been discussed and the reference value of preload and its scope had been given. This paper can be used by structure and strength engineers as reference.
