Analysis of optimisation method for a two-stroke piston ring using the Finite Element Method and the Simulated Annealing Method

Scientific Conference on Automotive Vehicles and Combustion Engines 2016

Kaliszewski, M.^1 ; Mazuro, P.^2

Warsaw University of Technology, Poland^1

Institute of Heat Engineering in WUT, Poland^2

关键词: ANSYS software;    Objective functions;    Optimisation method;    Piston ring geometry;    Pressure functions;    Radial coordinates;    Ring geometry;    Simulated annealing method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/148/1/012069/pdf
DOI  :  10.1088/1757-899X/148/1/012069

来源: IOP

【 摘 要 】

Simulated Annealing Method of optimisation for the sealing piston ring geometry is tested. The aim of optimisation is to develop ring geometry which would exert demanded pressure on a cylinder just while being bended to fit the cylinder. Method of FEM analysis of an arbitrary piston ring geometry is applied in an ANSYS software. The demanded pressure function (basing on formulae presented by A. Iskra) as well as objective function are introduced. Geometry definition constructed by polynomials in radial coordinate system is delivered and discussed. Possible application of Simulated Annealing Method in a piston ring optimisation task is proposed and visualised. Difficulties leading to possible lack of convergence of optimisation are presented. An example of an unsuccessful optimisation performed in APDL is discussed. Possible line of further optimisation improvement is proposed.