Spacecraft damping vibration isolation micro-vibration test chamber

Abstract

The invention discloses a spacecraft damping vibration isolation micro-vibration test chamber which is divided into a test chamber body and a control chamber body. The test chamber body comprises a room body, vibration isolation platforms, a test device and an auxiliary facility. The room body of the test chamber body is a semi-damping chamber, the floor is a gravity-leveled floor, and a roof and surrounding walls of the test chamber body are provided with wedge absorbers respectively. The center of the floor of the test chamber body is provided with three vibration isolation platforms. The first vibration isolation platform is a single-machine micro-vibration source surrounding test station and is provided with two spacecraft single-machine interference source test platforms. The second vibration isolation platform is a special multi-freedom-degree source surrounding simulation station and is provided with a six-freedom-degree source surrounding simulation system. The third vibration isolation platform is a station for a manned spacecraft single-machine noise source device sound power test and a large-part and small satellite whole micro-vibration test and is provided with a product and micro-vibration test tool and the like. The side face of the test chamber body is provided with a sound isolation door beneficial to going in and going out of tested devices or products. The control chamber body is a conventional spacecraft environmental test chamber.

Description

technical field

[0001] The invention belongs to the technical field of spacecraft micro-vibration testing and testing, and in particular relates to a spacecraft sound-elimination, vibration-isolation and micro-vibration laboratory. Background technique

[0002] Micro-vibration refers to the high-speed rotation of the rotating parts on the star, the stepping motion of the large-scale controllable component drive mechanism, the ignition of the thruster during the orbit change and capital adjustment, and the disturbance induced by the alternating cold and heat of the large-scale flexible structure when it enters and exits the shadow. Make the star produce a jitter response with a smaller amplitude and higher frequency. Micro-vibration disturbance sources exist in most spacecraft. Due to the small amplitude and high frequency of the micro-vibration dynamics environmental effect, it will not have a significant impact on the product of most spacecraft and is usually ignored. How...

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