Boots – shoes – and leggings
Patent
1981-05-18
1983-11-22
Malzahn, David H.
Boots, shoes, and leggings
181296, 367901, G06F 1531
Patent
active
044173130
ABSTRACT:
A method for optimizing the design of finite noise barriers by using an extension of the Biot-Tolstoy rigorous closed form impulse solution for diffraction of an acoustic pressure pulse by an infinite rigid wedge. An initial finite barrier is defined and then a calculation made of the impulse signal transmitted on one side of the barrier and received on the other side by adapting the Biot-Tolstoy solution to a digital computer. The integrals of the acoustic pressure impulse are calculated for each source/receiver path for each segment of the barrier. The integrals are then compared and the segments are adjusted and new calculations made until all integral contributions are equal. The integrals are then digitally Fourier transformed to determine attenuation at the desired frequencies. After comparison with the desired attenuation, all segments are proportionately adjusted and the entire computational process reiterated until the optimal attenuation is achieved.
REFERENCES:
patent: 3573446 (1971-04-01), Bergland
patent: 3686490 (1972-08-01), Goldstone
patent: 3778604 (1973-12-01), Bosc et al.
patent: 3783258 (1974-01-01), Chwastyk
patent: 3881097 (1975-04-01), Lehmann et al.
patent: 3881100 (1975-04-01), Works et al.
patent: 4058715 (1977-11-01), Niwa
patent: 4094251 (1978-04-01), Gillis, Jr.
patent: 4095669 (1978-06-01), Bond, Sr.
patent: 4175639 (1979-11-01), Wirt
patent: 4228867 (1980-10-01), Wirt
patent: 4306631 (1981-12-01), Reusser
patent: 4330046 (1982-05-01), Lerner et al.
Nakajima et al., "New Instrument for Rapid & Accurate Measurement of Ultrasonic Velocity & Attenuation Using a Minicomputer System" Japanese J. of Applied Physics, vol. 18, No. 7, Jul. 1979, pp. 1379-1385.
Beers R. F.
Craig George L.
Curry Charles D. B.
Malzahn David H.
LandOfFree
Method for optimizing the design of a finite noise barrier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for optimizing the design of a finite noise barrier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for optimizing the design of a finite noise barrier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1818203