Pneumatic tyre designing by CAD/CAE technique
Polimery 1994, No 11-12, 718
Practical CAD/CAE applications have been presented to help construct pneumatic tyres. Original routines are described, including input procedures and output data type. Particular emphasis has been placed on developing routines performing the major task, viz., producing the equilibrium profile of a tyre subjected to internal pressure. Routines allowing to establish the width of a tyre building drum, the shape of a raw tyre protector, and the distribution of tyre elements at the building stage are also described. Asketch of the inflated tyre (Fig. 15), forces in the cord forces (Fig. 16), a map of shear strains (Fig. 17), and the distribution of the elastic energy density and of the maximum normal stresses in tyre elements are generated by a finite-element-method-based programme. An essential positive feature of each presented programme is that, in one of CAD type systems, an electronic drawing is produced which forms a convenient reference basis.
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