Page 478 - Automotive Engineering Powertrain Chassis System and Vehicle Body

CHAP TER 1 5. 1 Modelling and assembly of the full vehicle

Traditional leaf spring

Simple equivalent spring model

SAE 3-link model Bush

Link
Link
Link

Lumped mass/beam elements
Bush

Masses Beams

Fig. 15.1-15 Leaf spring modelling strategies.

elements with the correct sectional properties for the leaf. 15.1.6 Anti-roll bars
This type of model is also complicated by the need to
model the interleaf contact forces between the lumped As shown in Fig. 15.1-16 anti-roll bars may be modelled
masses with any associated components of sliding friction. using two parts connected to the vehicle body by revolute

Revolute joints to Left anti-roll bar part
vehicle body REV
Right anti-roll REV INPLANE
bar part
Torsional
spring
Front wheel
knuckle
INPLANE

Front wheel
knuckle

Fig. 15.1-16 Modelling the anti-roll bars using joint primitives.

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