| 柴油机放热率的修正计算方法 |
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| 引用本文： | 李志杰,刘福水,暴秀超.柴油机放热率的修正计算方法[J].内燃机工程,2011(5). |
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| 作者姓名： | 李志杰 刘福水 暴秀超 |
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| 作者单位： | 北京理工大学机械与车辆工程学院; |
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| 摘 要： | 在相关由试验的缸压数据计算放热率的研究成果基础上,根据实际应用中遇到的问题提出了一种放热率的修正计算方法,并针对该修正方法进行了误差分析。研究结果表明:采用从原计算放热率中减去估算的系统误差放热率的方法,在不增加计算复杂程度的前提下有利于减小放热率实际计算中的误差;当需要对某一发动机各工况的放热率进行计算时,可以采用一组根据试验倒拖工况计算的多变指数进行修正计算。
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| 关 键 词： | 内燃机 柴油机 放热率 计算 多变指数 |
Modification Method of Heat Release Rate Calculation for Diesel Engine |
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| LI Zhi-jie,LIU Fu-shui,BAO Xiu-chao.Modification Method of Heat Release Rate Calculation for Diesel Engine[J].Chinese Internal Combustion Engine Engineering,2011(5). |
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| Authors: | LI Zhi-jie LIU Fu-shui BAO Xiu-chao |
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| Affiliation: | LI Zhi-jie,LIU Fu-shui,BAO Xiu-chao(School of Mechanical and Vehicular Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | Based on former achievements and aimed at problems encountered in actual calculations,a modified method was developed and analyzed its error.It proves that this method,which needs to subtract estimated systematic error of heat release rate from its original value,is useful for accuracy improvement in heat release rate calculation without making it more complex.While calculating the heat release rates for a series of engine conditions,they may be modified using the polytropic indexes measured in the motored ... |
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| Keywords: | IC engine diesel engine heat release rate calculation polytropic index |
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