1991-02-01

Microcellular Polyurethane Elastomers as Damping Elements in Automotive Suspension Systems 910109

Microcellular cast polyurethane (MC-PUR) elastomers and rubber are widely used as damping components in automobile suspension systems.MC-PUR materials have the following advantages over rubber: High volume compressibility Lighter weight Better flexibility Small size Resistance to dynamic fatigue The handling of the vehicle can be improved by using MC-PUR helper springs rather than buffers. These spring elements require a MC-PUR elastomer with excellent dynamic performance.Naphthalene- 1.5-diisocyanate (NDI) has proved to be the most suitable raw material for this very demanding application. The properties of MC-PUR springs based on NDI are discussed in comparison to other elastomeric materials.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: Purchase more aerospace standards and aerospace material specifications and save! AeroPaks off a customized subscription plan that lets you pay for just the documents that you need, when you need them.
X