Author(s): DrIng Georg Rill, Norbert Kessing and DiplIng
Even though it is the oldest type of automotive suspension, leaf springs continue to be a popular choice for solid axles. Though simple in appearance, a leaf spring suspension causes many problems in modelling. For dynamic simulation the vehicles are usually modelled by multi-body-systems (MBS), . Most wheel/axle suspension systems can be modelled by typical multi-body-systems elements like rigid bodies, links, joints and force elements, . Poor leaf spring models approximate guidance and suspension properties of the leaf spring by rigid links and separate force elements, . For realistic ride and handling simulations the deformation of the leaf springs must be taken into account.