CAJ | 학술논문

对残损航空器搬移拖车底盘进行研究时，通常要考虑航空器对搬移拖车底盘所施加的力以及悬架的缓冲作用，对其进行准确分析对于搬移拖车的可靠性研究起到重要作用。对拖车底盘进行有限元分析的传统方法是对其施加刚性约束，该方法忽略悬架的缓冲作用，使仿真结果失真。针对以上问题，用有限元软件建立了搬移拖车底盘有限元模型，对航空器在空载和未经过放油处理时对搬移拖车底盘所施加的力进行计算，采用平衡杆系法搬移拖车底盘进行约束，研究了这两种工况下的应力和变形，得出的结果满足许用应力的要求。通过对比对底盘施加刚性约束与平衡杆系法所得到的结果，得出平衡杆系法更符合实际情况的结论。该研究为搬移拖车底盘的可靠性研究提供了参考依据和借鉴。
대잔손항공기반이타차저반진행연구시，통상요고필항공기대반이타차저반소시가적력이급현가적완충작용，대기진행준학분석대우반이타차적가고성연구기도중요작용。대타차저반진행유한원분석적전통방법시대기시가강성약속，해방법홀략현가적완충작용，사방진결과실진。침대이상문제，용유한원연건건립료반이타차저반유한원모형，대항공기재공재화미경과방유처리시대반이타차저반소시가적력진행계산，채용평형간계법반이타차저반진행약속，연구료저량충공황하적응력화변형，득출적결과만족허용응력적요구。통과대비대저반시가강성약속여평형간계법소득도적결과，득출평형간계법경부합실제정황적결론。해연구위반이타차저반적가고성연구제공료삼고의거화차감。
To study the chassis structure of damaged aircraft handling trailer,consideration is often made to the force applied to the handling trailer by the aircraft and to buffering action of the suspension,so accurate analysis for them will play an important role in reliable study on the handling trailer.The traditional method of finite element analysis for the trail-er chassis is to apply the rigid constraint to it,without considering the buffering action of the suspension,resulting distortion of the simulation result.In view of the above problem,the finite element software is adopted for developing the finite ele-ment model of the handling trailer’s chassis,in order to calculate the force applied to the chassis by the aircraft at no-load and without oil drainage process.The balance bar system method is used to restrain the trailer chassis to study the stress and deformation under both working conditions,with the result meeting the requirement on allowable stress.Trough com-parison of the results of rigid constraint applied to the chassis and the balance bar system,it’s found that the balance bar system method is more suitable to the actual situation.The study provides reference and guidance for reliability research on the handling trailer’s chassis.