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《Diesel Engine》 2019-05
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Robustness Optimization of Electronic Controlled Injectors

Zhang Tong;Jin Feng;Yang Yang;Liu Shuaishuai;Xie Yichen;Shanghai Marine Diesel Engine Research Institute;National Engineering Laboratory for Marine and Ocean Engineering Power System;  
As for of electronic controlled injectors, uncertain factors such as size, form and position deviation caused by components machining and assembly tolerance, as well as uncertainties including pressure fluctuation and vibration under different working conditions, may lead to the fluctuation and discrepancy of injection volume and duration of electronic controlled injectors. To solve this problem, besides the traditional certain optimization, sensitivity analysis of key design parameters was carried out to obtain the sensibility ranking of how the key design parameters influence the performance parameters including cycle injection volume and duration under interference conditions. And then, based on 6 Sigma theory, key parameters were robust optimized and basic program with good robustness was obtained. With tolerance analysis, the tolerance level of key design parameters was adjusted to finally obtain the robust design program based on the indexes including injection volume, injection duration and response time.
【CateGory Index】: TK423
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