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为了优化内燃机结构以及损坏分析，需要测量引擎内的热力和机械负载。为了评估负载，需要关注两个重要指标。一个是活塞横向运动（二次运动），另一个是活塞环在工作行程中的位置和变形量。为了得到可靠结果，测量必须在工作过程中同时进行。
Piston Secondary Movement and Piston Ring Position
To improve the construction of internal combustion engines and damage analyses, it is neccessary to measure the thermal and mechanical loads in the engine. Two important variables here are the transverse movement of the piston (secondary movement) and the position and deformation of the piston rings during the individual operating strokes. The measurements must be made under operating conditions in order to provide reliable results. To do this, the engine is run on the bench either in firing or motored mode.
