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Abstract:
Based on the principle of imaginary work, the formulas for analyzing the
rigidity and damping characteristics of double-wishbone suspensions with
torsion bar are strictly derived. The definition designing procedure of
torsion rigidity and the shock absorber damping based on the settled
biased frequency and relative damping ratio is presented. And a new
method calculating the design parameters of the torsion bar and the
shock absorber is presented. The experiment shows that the simulating
results are in good agreement with the theoretical results. Using above
results, useful software for designing the suspension system is
developed, and is successfully applied in the design of a new type of
four wheel drive fuel cell vehicle with steer-by-wire.
Key words:
Double-wishbone suspension Torsion bar Shock absorber
Rigidity Virtual test
CLC No: U46
国家863计划资助项目(2003AA501000).
Received
20051024, received in revised form 20060423
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