| 1. | Remove the cover and diaphragm . the relief valve piston assembly can be lifted straight up and out
拆卸阀盖和隔膜。安全阀活塞总成可以笔直提出到外面来。 |
| 2. | Therefore , a successful product must be investigated on piston assembly ' s temperature field , mechanical stress field and deformation thoroughly in it ' s r & d period
因此一个可靠的产品必须在研发阶段对活塞组进行详尽的温度场、应力分布和变形情况分析。 |
| 3. | Investigation on piston assembly ' s mechanical load and test computation on thermal load , including the discussion on the analysis on movement and structure dynamics of piston assembly
此部分包括简单的运动分析和结构静力学的论述，并于最后指出了活塞组结构动力学分析的难点和重点。 |
| 4. | This paper shows the research on this issue with ansys 6 . 0 , in which two - ( 2 - d ) and three - dimensional ( 3 - d ) analysis on 8e160 diesel engine ' s piston assembly was carried out
本文就是在这个领域内所进行的一部分探索，开展了内燃机活塞组与缸套耦合模型的二维、三维数值模拟研究。 |
| 5. | Analysis on two - and three - dimensional thermal - field of the coupling model of piston assembly and cylinder , including steady analysis and transient thermal analysis with 2 - d and 3 - d model and the stress and the deformation under the action of thermal load
分析中包括了二维模型的稳态传热分析、瞬态传热分析和三维耦合模型的稳态传热分析、瞬态传热分析，以及附带的热应力和热变形分析。 |
| 6. | Detailed discussion on fea methods used in the coupling model of ic engine piston assembly and cylinder with the combination of the theoretic of fea , and theoretical foundation for two - and three - dimensional fea analysis of holistic coupling system of combustion chamber components
结合有限元理论知识，详细论述了在内燃机活塞组与缸套耦合模型中会用到的有限元方法。并为燃烧室部件整体耦合系统的二维、三维温度场有限元分析奠定了理论基础。 |
| 7. | The extremely harsh working conditions directly result in high thermal and mechanical loads in diesel engines " piston assemblies , and so due to high stress it becomes one of the most vulnerable components assembly in diesel engine . piston assemblies " failures such as cylinder sticking , scoring , gumming , etc . , greatly limit diesel engines " durability and reliability
由于长期工作在恶劣的环境下，柴油机活塞组要承受很高的热负荷和机械负荷，这些负荷所产生的高综合应力影响了它的使用寿命，其可能导致的咬缸、拉缸、结焦等故障极大地危害了柴油机整机的耐久性和可靠性。 |
| 8. | For the first time , it puts forward a conception of . thermal dynamic simulation and sets up a supposed analytical theory for scuffing failure and cylinder scoring of piston assembly and cylinder liner . that is followed with the simulation of scuffing failure and cylinder scoring of internal combustion engine under the condition of stopping cooling water supply and over loading
首次提出了热动态仿真的概念，第一次大胆假设了活塞组、缸套擦伤、拉缸时的分析理论，模拟出了在中断冷却水和超负荷状态下柴油机的擦伤、拉缸。 |
| 9. | It also sets up a cycling instantaneous heat transferring simulating model of tri - dimensioned coupling system of piston assembly and cylinder liner , and induces the thin oil film between piston assembly and cylinder liner and reticulates it . the model advances a great lot over the previous researches and approaches closer to the real case . at last , the coupling system of the cycling instantaneous temperature field of piston assembly and cylinder liner of diesel engine type 4135 is formed
在模型的建立上，充分考虑了活塞组和缸套间非常细薄的油膜厚度并对其进行了网格划分，使得所建立的传热模型和以往的研究相比前进了一大步、更接近真实情况，最终得出了4135柴油机活塞组、缸套耦合系统的循环瞬态温度场。 |
