Aemission spectrometer, micro-hardometer, optical microscope and scanning electron microscope were used to analyze the reason of crack on connecting rod unit assembly for piston of car engine.
采用直读光谱仪、显微硬度机、光学显微镜和扫描电子显微镜等分析手段，对失效的汽车发动机活塞连杆总成断裂原因进行了分析。
The FEM for the assembly parts of piston, gudgeon pin and small-end of connecting rod is constructed to investigate a diesel engine piston with an oscillating-oil-cooling channel.
针对某增压柴油机振荡冷却油腔活塞的非对称结构，建立全活塞活塞销连杆小头的有限元模型；提出了振荡冷却油腔的第三类热边界条件的数学描述并进行了验证；
The test results show that the improved and newly designed piston assembly meets the requirements of TJ376Q gasoline engine.
试验结果表明经改进设计的活塞满足TJ 376 Q汽油机的性能要求。
The test results show that the improved and newly designed piston assembly meets the requirements of TJ376Q gasoline engine.
试验结果表明经改进设计的活塞满足TJ 376 Q汽油机的性能要求。
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