摘要
目前,国内外关于带有储油孔和螺旋导油槽的螺栓的强度问题的研究较少,为了获得该类防锈螺栓在工作受载时的应力、应变情况并研究其承载能力,提出一种关于该类防锈螺栓强度的折减计算方法,通过有限元软件Patran/Marc对其进行有限元建模与强度分析。结果表明:采用渐进失效与最大应力准则的结果相对没用采用渐进失效的结果减小较大,采用折减计算方法得出的结果与不采用折减计算得出的结果误差较小,验证了该防锈螺栓折减计算方法的可靠性,简化了该防锈螺栓在工程应用中的强度分析问题。
A finite element model of the anti-rust bolts with oil reservoir and helical groove is developed and its strength is analyzed by Patran/Marc to obtain its stress distribution and bearing capacity. In the strength analysis, a reduction calculation method of the rust bolts is proposed. Results show that the errors of the progressive failure analysis and the maximum stress criterion are smaller than that of the non-progressive failure analysis, and the results of reduction calculation are similar to the original results. The reliability of the reduction calculation method is verified which simplifies the rust bolt strength analysis in engineering application.
出处
《航空工程进展》
CSCD
2017年第2期130-134,共5页
Advances in Aeronautical Science and Engineering
基金
南昌航空大学博士启动基金(EA201606185)
关键词
防锈螺栓
螺旋导油槽
有限元建模
强度分析
折减计算
anti-rust bolts
helical groove
finite element modeling
strength analysis
reduction calculation
