CAJ | 학술논문

用仿真及实验，论证了微波等离子体用于汽车点火的可行性。用三维微波电磁场仿真软件CST完成仿真设计。仿真模拟表明：当气缸内活塞到达上止点时，形成谐振，电场最强，迅速点火；偏离上止点时，电场迅速衰减，点火熄灭。改变直线波导上气缸的分布，模仿现有四缸汽车每组间隔点火情况。网络分析仪测试表明：活塞只有在某一特定刻度时，微波传输率才最大。实物试验中，微波源通过微波传输系统向带有一个气缸的直线波导馈入微波，只有在某一刻度范围内，气缸内产生很强的电场，激发出等离子体，气缸内点火。
용방진급실험，론증료미파등리자체용우기차점화적가행성。용삼유미파전자장방진연건CST완성방진설계。방진모의표명：당기항내활새도체상지점시，형성해진，전장최강，신속점화；편리상지점시，전장신속쇠감，점화식멸。개변직선파도상기항적분포，모방현유사항기차매조간격점화정황。망락분석의측시표명：활새지유재모일특정각도시，미파전수솔재최대。실물시험중，미파원통과미파전수계통향대유일개기항적직선파도궤입미파，지유재모일각도범위내，기항내산생흔강적전장，격발출등리자체，기항내점화。
The feasibility of microwave plasma employed in auto ignition was demonstrated by simulation design and experiments. The simulation design was implemented using the software of ＂computer simulation technology＂（CST） for a 3-D microwave electromagnetic field. The simulation design shows that when the cylinder piston gets to the top dead centre （TDC）, the electric field in the cylinder is stronger than elsewhere and the ignition is generated, with the electric field weakening and the ignition quickly snuffing out with fast TDC deviation. Based on linear distribution of the cylinder, the simulation design imitates the situation of existing four cylinder ignition. The network analyzer tests show that the microwave transfer rate is the largest only in a certain scale with the piston alternating position. The microwave source transfers energy to the linear waveguide with a cylinder through the microwave transmission system. Only in a certain scale range, the electric field in the cylinder is strong enough to generate plasma with auto ignition then produced in the cylinder.