An acoustic characteristic testing device for a light and thin structure comprises a traveling wave tube, a light and thin structure clamping device and a fixing and supporting device. The light and thin structure clamping device is fixed to the fixed supporting device and used for clamping a light and thin structure. And the light and thin structure is placed at a test opening of the traveling wave tube. According to the acoustic characteristic testing device for the light and thin structure, the light and thin structure is separated from the traveling-wave tube body, so that the vibration of the traveling-wave tube wall is prevented from being transmitted into the light and thin structure to influence the acoustic characteristic of the light and thin structure during a traveling-wave tube noise test, and the problem of large vibration attached to the light and thin structure is solved; and the light and thin structure clamping device is adopted, so that additional mass and additional rigidity cannot be brought to the light and thin structure.
一种轻薄结构声学特性测试装置,包括行波管、轻薄结构装夹装置、固定支撑装置;所述轻薄结构装夹装置固定在所述固定支撑装置上,用于装夹轻薄结构;所述轻薄结构放置于行波管的测试开口处。该轻薄结构声学特性测试装置,使轻薄结构与行波管本体剥离开的方法,避免行波管噪声试验时行波管壁的振动传入轻薄结构影响其声学特性,解决了附加于轻薄结构上的大振动问题;且采用的轻薄结构装夹装置,不会给轻薄结构带来附加质量和附加刚度。
Acoustic characteristic testing device for light and thin structure
一种轻薄结构声学特性测试装置
2021-10-08
Patent
Elektronische Ressource
Chinesisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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