CAJ | 학술논문

风机轴的设计，除必须进行强度计算外，还需要确定轴的临界转速[1-2]，以避免轴系共振。本文通过一简单算例，即采用I-DEAS软件中梁单元模拟和三维实体单元模拟分别计算轴系临界转速[3-4]。通过对计算值与实测值进行比较分析后发现，采用I-DEAS软件中梁单元模拟和实体单元模拟计算轴系临界转速，均能满足工程精度需要，但实体单元模拟计算轴系临界转速的准确性更高。
풍궤축적설계，제필수진행강도계산외，환수요학정축적림계전속[1-2]，이피면축계공진。본문통과일간단산례，즉채용I-DEAS연건중량단원모의화삼유실체단원모의분별계산축계림계전속[3-4]。통과대계산치여실측치진행비교분석후발현，채용I-DEAS연건중량단원모의화실체단원모의계산축계림계전속，균능만족공정정도수요，단실체단원모의계산축계림계전속적준학성경고。
The design of fan shaft is needed to determine the critical speed of shaft to avoid shaft resonance besides the necessary strength calculation. In this paper, aiming at a simple calculating example that adopting beam element simulation and three-dimensional solid element simulation in software I-DEAS to calculate critical speed of shaft separately. Based on the comparison and analysis between calculating values and measured values, it is found that the calculation of shaft critical speed by beam element simulation and solid element simulation in software I-DEAS both can meet the engineering accuracy requirement, and the accuracy is higher by solid element simulation.