柴油机全可变配气缸内充量建模与数值最优仿真研究  

Research on modeling and numerical optimal simulation of diesel engine fully variable allocation cylinder charge

作　　者：张犇 石磊 丁宁 路勇[1] ZHANG Ben;SHI Lei;DING Ning;LU Yong(College of Power and Energy Engineering,Harbin Engineering University,Harbin 150001,China;Fourth Representative Office of the Navy in Shanghai,Shanghai 201108,China)

机构地区：[1]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001 [2]海军驻上海地区第四代表室,上海201108

出　　处：《应用科技》2021年第5期86-91,共6页Applied Science and Technology

基　　金：国家自然科学基金项目(51979059)。

摘　　要：为优化柴油机全可变配气机构的气阀参数及提高缸内充量系数,以4102系列柴油机为原机,建立全可变配气柴油机缸内配气充量的数学模型。首先,以质量守恒定律和理想气体状态方程为理论依据,对柴油机配气过程进行近似简化,建立全可变配气柴油机缸内配气充量的数学模型。其次,利用框图化设计思想搭建缸内配气充量物理模型,计算柴油机不同工况下的最优配气充量以及最佳配气充量下的气阀运动最优配气参数。最后,使用GT-power软件对结果进行验证,证明了配气模型的准确性。In order to optimize the valve parameters and improve the in-cylinder charging coefficient of the fully variable gas distribution mechanism of diesel engine,the mathematical model of in-cylinder gas distribution charging of fully variable gas distribution diesel engine is established with 4102 series diesel engine as the prototype.Firstly,the mathematical model of in-cylinder gas distribution charging of fully variable gas distribution diesel engine is established by approximating and simplifying the diesel engine gas distribution process based on the law of mass conservation and ideal gas equation of state.Secondly,based on the block diagram design idea,the physical model of in-cylinder gas distribution charge is constructed to calculate the optimal gas distribution charge under different operating conditions of diesel engine and the optimal gas distribution parameters of valve motion under the optimal gas distribution charge.Finally,the correctness of the result is verified by using the GT-power software,proving accuracy of the gas distribution model.

关 键 词：柴油机 配气充量 数学模型 仿真研究 气缸 气阀参数 充量系数 数值最优 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程]