Piston is a center part of Diesel so the reasonable design of piston directly relates to the reliability, lifetime and economic performance.
活塞作为发动机核心部件，它的设计是否合理直接关系到内燃机可靠性、寿命、经济性等。
2
The influences of combustion chamber parameters on thermal stress of ceramics layer were analyzed, which provided the foundation for optimally designing ceramics piston of a diesel engine.
文中还分析了不同燃烧室结构参数对陶瓷涂层热应力状态的影响，为优化设计陶瓷活塞提供了依据。
3
Then, by the use of axisymmetric heat conduction model, the temperature field of 198-type Diesel engine's piston is calculated with subregion boundary element.