Door-Triggering Mechanism for Large-Scale Rapid-Decompression Experiments. (1st August 2020)

• Record Type: Journal Article
• Authors: Zhang, Lei; Han, Xiao; Zhang, Xinbin; Yan, Jihong
• Other Names: Viviani Antonio Academic Editor.
• Is Part Of: International journal of aerospace engineering. Volume 2020(2020)
• Publication Date: 2020-08-01
• Subjects: Aerospace engineering -- Periodicals; 629.105
• DOI: 10.1155/2020/6841651
• Languages: English
• ISSNs: 1687-5966

Abstract

Abstract : For large-scale rapid-decompression experiments, a new door-triggering mechanism is proposed for a 750 mm diameter pressure relief channel. Quick opening of the door is realized by utilizing a spring-based release mechanism to instantly convert large amounts of elastic potential energy into kinetic energy. To counteract the significant inertial effect of the high-speed door on the chamber, a flywheel-based cushioning mechanism is designed to absorb the kinetic energy of the door after opening. This carefully designed mechanism consists of the closing mechanism, energy storage unit, locking/releasing mechanism, and cushioning mechanism. Kinetic models are established to analyze the dynamic properties. Simulation results reveal that it takes approximately 280 ms for the door to open from 0° to 90°. This work can provide insights for the development of large-scale rapid-decompression equipment in the future.