THE ACOUSTICS OF MOTORCYCLE HELMETS

Motorcycle helmets both act as a source of aerodynamic noise and attenuate external sounds. These facts have been the basis of some arguments concerning accident avoidance while wearing a helmet. In the present study measurements of at-ear helmet-generated aerodynamic noise and helmet insertion loss were carried out. From these data and existing information on at-ear noise levels generated by air flow about a bare head, a comparison of the ability of bare-headed and helmet wearing motorcyclists to detect external acoustic signals was carried out. It was found that under no conditions did a properly fitting helmet put its wearer at a disadvantage to the bare headed rider and at typical speeds the helmet gave a considerable advantage. /Author/

  • Corporate Authors:

    University of Utah, Salt Lake City

    Department of Mechanical and Industrial Engineering
    Salt Lake City, UT  USA  84112
  • Authors:
    • Van Moorhem, W K
    • SHEPHERD, K P
    • Magleby, T D
    • Torian, G E
  • Publication Date: 1977

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00190121
  • Record Type: Publication
  • Source Agency: National Safety Council Safety Research Info Serv
  • Report/Paper Numbers: UTEC 77-091
  • Files: TRIS
  • Created Date: May 26 1979 12:00AM