Application of Monte Carlo Simulation for Free Piston Engine Cylinder Block Design

This paper presents a stochastic simulation study to take account these uncertainties in a cylinder block structure of free piston engine.The computational stochastic structural mechanics and analysis allows a rational treatment of statistical uncertainties involved in structural analysis and design. It consists a stochastic simulation of the static analysis of the model structure where the analysis was executed from finite element software.The simulation study produces a data that identify the design input and output parameter that need to be optimised based on Monte Carlo method. By executing the design improvement analysis in the simulation process, multiple solutions arrived from the target behaviour, which have been specified for the structure. For this cylinder model, it is found that from improvement design there is a significant reduce in stress value of 18.2 MPa, modulus of elasticity for material 1, E1 of 160,200 MPa and increasing in modulus of elasticity for material 2, e2 of 71,100 MPa by controlling the target behaviour maximum displacement of the cylinder, L max.Jhe correlations between these variables were shown in the study, which allow designers to identify the strength of the relationship between variables and the uncertainties in the design.