CAJ | 학술논문

针对结合面静态刚度与联接方式、被联接段刚度、结合部刚度密切相关，直接测量、计算结合面静态刚度具有较大困难问题，以螺栓结合面为研究对象，建立螺栓结合面法向静态刚度特性提取方法。通过法向静态拉伸实验与数据分析结合方式，获得结合部刚度；通过优化计算螺栓结合面被联接段刚度，建立被联接段刚度精化解析公式；依托螺栓结合面刚度、被联结件刚度、结合部刚度三者间串联倒数关系，将螺栓结合面法向静态接触刚度从螺栓结合部整体静态刚度中分离；形成确定螺栓结合面有效作用面积方法，完整提取螺栓结合面面压的螺栓结合面法向静态接触刚度非线性特性曲线，为结合面接触刚度深入研究提供新方法。
침대결합면정태강도여련접방식、피련접단강도、결합부강도밀절상관，직접측량、계산결합면정태강도구유교대곤난문제，이라전결합면위연구대상，건립라전결합면법향정태강도특성제취방법。통과법향정태랍신실험여수거분석결합방식，획득결합부강도；통과우화계산라전결합면피련접단강도，건립피련접단강도정화해석공식；의탁라전결합면강도、피련결건강도、결합부강도삼자간천련도수관계，장라전결합면법향정태접촉강도종라전결합부정체정태강도중분리；형성학정라전결합면유효작용면적방법，완정제취라전결합면면압적라전결합면법향정태접촉강도비선성특성곡선，위결합면접촉강도심입연구제공신방법。
Joint interfaces static stiffness is closely related to the connection mode,bolted member stiffness and joint part stiffness.It is very difficult to measure and calculate the joint interfaces static stiffness directly.Taking bolted joint interfaces as research objects,a method of extracting the normal static stiffness of bolted joint interfaces was proposed.By combining the spplication of normal static stretching experiment and data processing,the joint part stiffness was obtained.Then an optimization calculation on bolted member stiffness was carried out and a corresponding refined analytic formula was provided.Based on the exploitation of relationships among the joint interfaces static stiffness,bolted member stiffness and joint part stiffness the normal static stiffness of bolted joint interfaces was seperated from the whole bolted joint part stiffness.In accordance with the above analysis results,the nonlinear characteristic curve of normal static stiffness of bolted joint interfaces corresponding to effective contact pressure was extracted.The method proposed provides a new way to the in-depth study about joint interfaces static stiffness.