PARAMETRIC APPROACH TO MODELING A CAR WHEEL DISC

Abstract

The paper considers the issue of constructing a parametric computer model of a car wheel disk in Autodesk Inventor. The constructed model of a car disk allowed to obtain a wide range of various geometric solutions.

The proposed algorithm for constructing a disk model made it possible, by varying several parameters, to substantially change the geometry of the guide of each individual spoke — from the straight line to the Archimedes spiral, the involute of the circle, and all the intermediate curves.

The results are obtained for cases when the spokes have a square, rectangular (flat), trapezoidal, triangular geometry with or without rounding, as well as a circle shape. This was achieved within the framework of one parametric three-dimensional model due to a change in the values of the corresponding parameters.

It should be noted that the model of the car was built not in art design program, but in mechanical design program. At the same time, the geometry of a large number of similar products, current trends and possible design decisions were taken into account.

Thanks to the parameterization, the model allows you to quickly visually evaluate many options for geometric solutions, their pros and cons, and analyze the selected compositional solution. This is especially important if you consider that industrial designers usually do not use the modern apparatus of three-dimensional parametric modeling when working out various options for the geometry of a particular product.

The constructed model of a car disk can be easily used for aerodynamic, strength and other calculations.

The paper gives an example of the application of the obtained model in the design of various chair options for people with limited mobility with problems of the musculoskeletal system.