Most automobiles, at certain speeds with at least one window open, develop pulsating pressure which is felt mainly through ears and is objectionable to occupants; while "aero-dynamic wind throb" is noticeable over range of speeds, there is fairly pronounced peak in effect at one speed; problem is studied analytically and experimentally; it is established that car is dynamic system consisting of Helmholtz resonator excited by edge tone; trouble can be corrected by changing natural frequency, minimizing or eliminating excitation, or increasing damping of system.
Aerodynamic wind throb in passenger cars
SAE -- Paper
SAE Meeting ; 1964 Wind pressure
1964
17 pages
Aufsatz (Konferenz)
Englisch
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