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Purdue researchers tackle truck noise as nation’s bigger problem
At Purdue University a small team led by Malcolm Crocker studies why highway trucks roar. They identify four noise sources exhaust, cooling fans, engines, and tires, proposing quieter mufflers, off cooling, engine shielding, and redesigned tires. Tests show trucks reach 88–99 decibels at 50 feet, more than cars.
MENTIONED IN THIS ARTICLE
West Lafayette
Ind
Purdue University
Malcolm J. Crocker
Purdue
Ray W. Herrick Laboratories
U.S
Crocker
International Harvester Co