Abstract: Based on the conception of 3-D and coupling, the heat transfer relation of the moving piston assembly-lubricant film-liner is established by employing the numerical technology and thinking the lubricant film as 1-D thermal resistance. The discrete theory of the coupling 3-D component system is completed and the software, which is used to calculate the transient and non-steady heat transfer process in the component system, is developed. Based on the steady results under the operating conditions, the transient heat transfer process of the moving piston assembly-lubricant film-liner of the engine CUB100 has been analyzed.

Key words: Engine, Finite element, Non-steady heat transfer, Transient heat transfer, Calibration experiment, Orthogonal parallel, Over restricted, overload, Six-dimensional force sensor