Optimum Design And Study Of Automobile Styling Based On TRIZ

Automobile styling design is the most important part in automobile research,the cost of design takes up 1/2 to 1/3.Automobile styling is a comprehensive multidisciplinary design which contains aesthetics,materials science,ergonomics,airmechanics and etc,in which airmechanics is the most important technical design index in styling design.This paper will expound the basic TRIZ Theory and introduce the core method--- Conflict resolution matrix.It will analyze the influence to automobile of aerodynamic force in three aspects:automobile power,fuel economy and driving stability,and establish the automobile 3D model.In order to insure the computational accuracy and choose reasonable computation domain in pre-treatment,this paper will divide the automobile model by using mixed grid system which is "triangular prism+tetrahedron+hexahedron", import the grid into FLUENT, design appropriate boundary conditions, simulate outer flow field,analyze pressure and velocity profile,and seek out the area need to be improved in the model.Combining with the conflict resolution matrix in TRIZ theory,this paper will confirm the conflicts parameters influence which influence its air dynamic property is speed and energy loss.In the inventive principle of conflict resolution matrix,it will choose surfaces and parameter changing to solve contradiction.This paper will apply the two inventive principles into automobile styling,and repeatedly revise the Front-end transition radius,the upturned angle of the bottom of rear,the inclined angle of the Back of rear and the back windshield,besides, it will simulate outer flow field and discuss the influence of the aerodynamic drag and lift to automobile when the local styling change,it will analyze the reason and obtain optimization schemes with data,so as to improve the air dynamic property of automobile...