4102柴油机进气阀系特性仿真评价及优化.pdf

第 53 卷 第 5 期 农业装备与车辆工程 2015 年 5 月 Vol. 53 No. 5 AGRICULTURAL EQUIPMENT VEHICLE ENGINEERING May 2015 doi:10.3969/j.issn.1673-3142.2015.05.010 4102 柴油机进气阀系特性仿真评价及优化 1 2 苌转 ，王威 （1. 110159 辽宁省 沈阳市 沈阳理工大学 汽车与交通学院；2. 071000 河北省 保定市 长城汽车公司） [ 摘要 ] 柴油机的进气阀比排气阀更易磨损，直接影响了柴油机尤其是高速柴油机的可靠性和耐久性。利用 EXCITE_TD 软件对 4102 柴油机进气阀系的特性进行仿真、评价及优化。进气阀系运动学仿真结果的评价表 明：原进气阀的最大跃度不满足要求 ，需要进行优化。优化后的最大跃度 Jerk 由原来的 2 720 mm/rad3 降到 了 888.2 mm/rad3 ，对阀系振动的响应不再敏感 ；进气阀系动力学仿真结果的评价表明 ：优化前、后 ，进气 阀的落座速度和落座力均小于优化前，尤其是进气阀的落座力 ，约减小一半 ，使得阀座的振动 、噪声及磨 损大大降低。 [ 关键词 ] 柴油机；进气阀系；运动学；动力学 [ 中图分类号 ] TK421 [ 文献标识码 ] A [ 文章编号 ] 1673-3142(2015)05-0042-05 Simulation Evaluation and Optimization of Characteristics for 4102 Diesel Intake Valve System 1 2 Chang Zhuan ，Wang Wei (1. School of Automobile and Traffic，Shenyang Ligong University，Shenyang City，Liaoning Province 110159，China; 2. Great Wall Motor，Baoding City，Hebei Province 071000，China) [Abstract] Intake valve is more likely to be worn than exhaust valve in diesel engine, and this will directly impact on reliability and durability of diesel, especially high-speed diesel. In this paper, simulation, evaluation and optimization of the characteristics for 4102 diesel intake valve system was done using EXCITE_TD software. The results of simulation and evaluation for original intake valve system kinematics indicated that the maximum value of the jerk which could not accord with the requirement needed to be improved. The optimized results that the maximum jerk dropped to 888.2 mm/rad3 from 2 720 mm/rad3 showed intake valve was insensitive to the system. Th