CAJ | 학술논문

为保证某港长时期服役的门座起重机工作的安全，运用有限元分析与实测相结合的方法对其金属结构的应力分布进行分析，辅助起重机安全评估工作。根据实际评估需求，选取起重机最危险工作位置时的作业工况进行分析。通过ANSYS有限元计算结果显示：在选择的载荷组合作用下，整机应力分布比较合理，基本小于100 MPa，最大应力值为145 MPa，小于材料的许用应力值，与实际测试的应力数据比较，两者的数据基本吻合，金属结构可安全使用。
위보증모항장시기복역적문좌기중궤공작적안전，운용유한원분석여실측상결합적방법대기금속결구적응력분포진행분석，보조기중궤안전평고공작。근거실제평고수구，선취기중궤최위험공작위치시적작업공황진행분석。통과ANSYS유한원계산결과현시：재선택적재하조합작용하，정궤응력분포비교합리，기본소우100 MPa，최대응력치위145 MPa，소우재료적허용응력치，여실제측시적응력수거비교，량자적수거기본문합，금속결구가안전사용。
In order to ensure the safety of portal crane, the method of finite element analysis is combined with the measured stress distribution of structure analysis. The finite element calculation results shows that the stress distribution of the whole structure is reasonable, most of it is less than 100 MPa, the maximum stress value is 145 MPa, less than the allowable stress of material value, which is accordant with the testing data.