Title :
Research on particle impact noise detection standards
Author :
Hui Zhang ; Shu-juan Wang ; Guo-fu Zhai
Author_Institution :
Dept. of Electr. Eng., Dalian Univ. of Technol., Dalian
fDate :
4/1/2008 12:00:00 AM
Abstract :
Particle impact noise detection (PIND) is a reliable screening technique specified by MIL-STD-883E. But MIL-STD-883E gives some test conditions which are not always appropriate. The test conditions of PIND are derived here based on dynamics. The upper limit frequency expression is obtained by a transforming equation. How vibration acceleration, vibration frequency, recovery coefficient, particle mass, and cavity height influence the particle´s output energy is discussed. Moreover, the applicable range of test conditions of MIL-STD-883E are indicated and the best vibration frequency is derived by analyzing the relationship between the output power of vibrator and the particle´s output energy. Some experiments are given.
Keywords :
acoustic noise measurement; dynamic testing; electronic equipment testing; measurement standards; military standards; cavity height influence; particle impact noise detection standards; particle mass; recovery coefficients; screening technique; upper limit frequency expression; vibration acceleration; vibration frequency; Acceleration; Aerodynamics; Contamination; Electronic components; Electronic equipment testing; Frequency; Life estimation; Manufacturing; Vehicle dynamics; Vibrations;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2008.4560223
