CAJ | 학술논문

为深入了解轨道型电磁推进装置工作时由脉冲电流形成的冲击力的特点,以探索改善轨道支撑结构的有效方法,设计了一套冲击力试验系统,并运用数值模拟技术计算了相关试验情况.试验系统利用C型单体电枢作为冲击力源测试得到了不同脉冲电流作用下的冲击力波形,对两条波形曲线进行了比较分析;利用ANSYS/Multiphysics对处于电、磁、力耦合场环境中的电枢进行了数值计算,着重对电枢的耦合力场环境进行了模拟,计算出了电枢的电磁驱动力和电磁压紧力,分析了电枢在力场中的结构应力和形变.结果显示,数值计算方法和试验方法得到的电磁驱动力曲线和冲击力曲线前半部分的波形基本一致,而峰值点则随着脉冲电流的增加差值有所增大,但仍具有一定的跟随性,证明了试验方法对冲击力捕获具有一定的指导意义,也同时验证了计算方法的可行性和有效性.
위심입료해궤도형전자추진장치공작시유맥충전류형성적충격력적특점,이탐색개선궤도지탱결구적유효방법,설계료일투충격력시험계통,병운용수치모의기술계산료상관시험정황.시험계통이용C형단체전추작위충격력원측시득도료불동맥충전류작용하적충격력파형,대량조파형곡선진행료비교분석;이용ANSYS/Multiphysics대처우전、자、력우합장배경중적전추진행료수치계산,착중대전추적우합력장배경진행료모의,계산출료전추적전자구동력화전자압긴력,분석료전추재력장중적결구응력화형변.결과현시,수치계산방법화시험방법득도적전자구동력곡선화충격력곡선전반부분적파형기본일치,이봉치점칙수착맥충전류적증가차치유소증대,단잉구유일정적근수성,증명료시험방법대충격력포획구유일정적지도의의,야동시험증료계산방법적가행성화유효성.
To better understand the characteristics of the impulse force formed by pulse current of electromagnetic rail propulsion system, and to explore effective ways to improve the support structure of rails, a set of impulse force test system was designed, and the work-related test situation was numerically simulated. Several impulse force waveforms formed by different pulse current waveforms were achieved by using a C-shape monolithic armature as a source of impulse force in this test system, and two curves of waveform were comparatively analyzed. Numerical calculation of the armature existing in the environment of coupling fields including electric field and magnetic field and force field was carried out by ANSYS/Multiphysics, the coupling force field was emphatically analyzed to calculate the electromagnetic driving force and the electromagnetic clamping force acting on the armature, and the structure stress and deformation were also analyzed. The results show that the curves of electromagnetic driving force computed by numerical simulation and the curves of impulse force obtained by experiment are basically the same in the first half, and the value of peak points' error is increasing along with the increase of pulse current, but the curves still show some common characteristics. This verifies that the test method we used in this paper is proper to capture the impulse force, and the method of calculation is also feasible and effective.