WHEEL PROFILE DESIGN FOR THE TARGETED CONICITY AND A WIDE CONTACT SPREADING

The paper deals with design of new wheel tread profile. A relationship between the equivalent conicity, contact angle and location of contact area in nominal position, the contact stress and lateral contact spreading is explained and illustrated on examples of measured worn wheel profiles. This relationship has been considered in the proposed method for profile design applied to create new profiles with targeted conicity and at the same time wide contact spreading. The proposed profiles are suited for vehicles running on straight tracks and/or high power traction vehicles.