CAJ | 학술논문

为了确保直升机不存在发生“地面共振”危险，在完成“地面共振”初步仿真之后应进行地面开车试验。针对试验研究成本高、局限性大的问题，利用LMS平台对某型直升机“地面共振”过程进行分析。根据理论和经验公式计算得出动力学参数，建立多体动力学分析模型。动态演示直升机“地面共振”开车试验过程的分析结果表明，该直升机在转速范围内不会发生“地面共振”。
위료학보직승궤불존재발생“지면공진”위험，재완성“지면공진”초보방진지후응진행지면개차시험。침대시험연구성본고、국한성대적문제，이용LMS평태대모형직승궤“지면공진”과정진행분석。근거이론화경험공식계산득출동역학삼수，건립다체동역학분석모형。동태연시직승궤“지면공진”개차시험과정적분석결과표명，해직승궤재전속범위내불회발생“지면공진”。
To ensure the helicopter avoid the dangers caused by ground resonance, there should be a helicopter ground test after the preliminary analysis. As to the high cost and limitations of experimental study, LMS is used to analyze the progress of a helicopter’s ground resonance. Based on the parameters calculated by theory and empirical formula, the dynamical model is proposed. The results prove that the helicopter ground resonance won’t happen within the speed range by the way of simulation to demonstrate dynamically the process of helicopter ground resonance test.