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 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

CAE Analyses for Suspension System and Full Vehicle under Durability Road Load Conditions

2007-01-1649

View Details

TECHNICAL PAPER

Experimental Testing and Mathematical Modeling of the Interconnected Hydragas Suspension System

2003-01-0312

View Details

TECHNICAL PAPER

Development of Rebound Bumper Using Thermoplastic Elastomer in Suspension System of Vehicle

2016-01-0518

View Details

X