Finite Element Analysis Of Thermal Loads Of Mechanical Structures

Abstract

This paper concentrates on mechanical structures. The design of static structures assumes they always have the same geometry (in fact, so-called static structures can move significantly, and structural engineering design must take this into account where necessary), but the design of moveable or moving structures must account for fatigue variation in the method in which load is resisted and significant deflections of structures. The forces which parts of a machine are subjected to can vary significantly and can do so at a great rate. The forces which a boat or aircraft are subjected to vary enormously and will do so thousands of times over the structure's lifetime. The structural design must ensure that such structures are able to endure such loading for their entire design life without failing. The main objective of this paper is to study the behavior of mechanical structural under thermal loads in a simple and logical manner and to apply modification. In this project the study of the behavior of mechanical structural under thermal load is based on the understanding of a few basic concepts, on the use of simplified models and simulation of mechanical structures. This approach makes it possible to develop all the necessary formulas in a rational and logical manner, and to clearly indicate the conditions under which they can be safely applied to the analysis and design of actual engineering structures and machine components. Throughout the paper, free-body diagrams are used to determine external or internal forces. The use of drawing and analysis program will also help understanding the superposition of loadings and resulting stresses and deformation.