CAJ | 학술논문

针对舰载旋转机械的水下非接触爆炸冲击动力学问题，提出了一种基础冲击转子-轴承系统建模理论。结合牛顿运动定理、动量矩定理和Timoshenko梁理论推导出了系统动力学微分方程，方程综合考虑了转子的旋转惯性力、剪切力、陀螺效应、轴向力、轴向扭矩以及轴承的油膜力。通过在时间域和空间域分别采用直接积分法和Galerkin有限单元法求解方程得到系统冲击响应的时间历程。最后，建立了一基础冲击旋转机械系统（转子系统）实验装置，并实验验证了建模理论和计算方法的正确性。
침대함재선전궤계적수하비접촉폭작충격동역학문제，제출료일충기출충격전자-축승계통건모이론。결합우돈운동정리、동량구정리화Timoshenko량이론추도출료계통동역학미분방정，방정종합고필료전자적선전관성력、전절력、타라효응、축향력、축향뉴구이급축승적유막력。통과재시간역화공간역분별채용직접적분법화Galerkin유한단원법구해방정득도계통충격향응적시간역정。최후，건립료일기출충격선전궤계계통（전자계통）실험장치，병실험험증료건모이론화계산방법적정학성。
Model of a rotor system under base shock excitations was established. Multi-factors, including rotating inertia, shear force, gyroscopic effect, axial force, axial torque and oil film force, etc, were includ-ed. Dynamic differential equations were derived. Equations were solved by finite difference methods in time domain and FEM in space domain. Time-varying responses were obtained successfully. Finally, an experi-mental verification was carried out and the proposed theory was proved to be correct.