SOME ASPECTS OF THE DESIGN OP THE SUSPENSION SYSTEMS OF HEAVY GOODS VEHICLES

摘要

Considerable improvement is needed in the aspects of heavy goods vehicle design related to ride comfort and road loading. A well designed vehicle 37% heavier than the present typical U.K. truck of 32 tonne will be about 9% more efficient in terms of fuel consumption per tonne of payload and cause less road damage. The techniques such as mathematical modeling, modal analysis, fatigue and fracture mechanics, and finite element design will need to be used more extensively. However, one of the major obstacles is the lack of detailed service history. The "vibration isolation system" of a vehicle is affected by a multitude of effects. Three aspects are considered.n1. Dynamic behaviour of tandem axle sets.n2. Resonance of chassis frame bending.n3. Dynamic coupling of articulated vehicles.