内燃凿岩机放热率计算方法的研究

Calculation of Heat Release Rate in an Internal Combustion Rock Drill

摘要内燃凿岩机是一种用冲击活塞代替传统缸盖并由冲击活塞输出冲击功的特种内燃机.由于工作原理的特殊性和冲击活塞位移规律的测量难度,其放热率的分析研究,在国内外尚属空白.本文提出了一种实测压力与电算数据相结合的方法,首次得到了内燃凿岩机的放热率,为进一步认识和分析这一特种内燃机的燃烧过程,为燃烧过程的模拟计算提供了重要数据.

Heat release rate in an internal combustion rock drill was calculated by combination of measured in-cylinder pressure data and simulated data of hammer piston displacement which were difficult to measure, providing important data for simulation of combustion process and whole cycle in this special kind of internal combustion engine.