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首页> 外文期刊>International Journal of Automotive Science and Technology >Linkage Mechanism Optimization and Sensitivity Analysis of an Automotive Engine Hood
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Linkage Mechanism Optimization and Sensitivity Analysis of an Automotive Engine Hood

机译：汽车发动机罩的连杆机构优化与灵敏度分析

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摘要

Equipment such as a rod between vehicle body and hood or a lift strut are used to keep automobile hood in open positions during the regular maintenances or repairs. Moreover, some effort is required to open or close automobile hood because of its weight. To keep it in various opened positions and to exert the least force to open or close it, a mechanism is used in conjunction with extension, compression or torsion springs in two different configurations. Each optimization has been carried out for all these different springs, each in two configurations and results are compared. Sensitivity analysis for the design variables are examined to determine how these variables are influential on the designed mechanism. Optimization results of extension and compression springs are observed to be similar in both configurations of the designed mechanism. On the other hand, results for the torsion spring in two configurations are exactly the same for the mechanism. Sensitivity analysis shows that the designed mechanism is not sensitive on the design variables that are on the bound in both of these two configurations . ? ??.
机译：在定期维护或修理期间，使用诸如车身与发动机盖之间的杆之类的设备或升降杆将汽车发动机盖保持在打开位置。此外，由于汽车引擎盖的重量，需要花费一些努力来打开或关闭汽车引擎盖。为了将其保持在各种打开位置并施加最小的力来打开或关闭它，将一种机构与两种不同配置的拉伸弹簧，压缩弹簧或扭力弹簧结合使用。针对所有这些不同的弹簧进行了每种优化，每种优化都有两种配置，并比较了结果。检查设计变量的敏感性分析，以确定这些变量如何影响设计的机制。在设计机构的两种配置中，拉伸弹簧和压缩弹簧的优化结果均相似。另一方面，扭力弹簧在两种配置下的结果与该机构完全相同。敏感性分析表明，所设计的机制对这两种配置中都存在的设计变量不敏感。 ？ ??。

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