AHTHGC(000901) 中国经济网·2024-11-07 00:02Spacecraft Recovery and Landing Technology - The Shenzhou-18 manned spacecraft successfully returned to Earth on November 4, marking the 18th successful deployment of the Shenzhou parachute system, which has been instrumental in China's manned spaceflight program [1] - The parachute system, developed by the 508th Research Institute of the China Aerospace Science and Technology Corporation, is the largest and most complex spacecraft parachute in China, covering an area of 1,200 square meters and consisting of over 1,900 canopy pieces, 90 radial straps, 20 weft straps, and 96 suspension lines [2] - The parachute system has undergone significant development over the past 60 years, with five major milestones: recovery of sounding rockets, recovery of large-scale test data capsules, recovery of returnable satellites, recovery of manned spacecraft, and recovery of lunar orbiters [5][6][7] Parachute Manufacturing and Quality Control - The parachute manufacturing process involves over 30 production steps, 20 packaging steps, and 40 assembly steps, with each step requiring meticulous quality control to ensure the parachute's reliability [2] - The parachute canopy is made of high-strength nylon silk, and the manufacturing process requires the coordination of over a dozen workers over four months to complete [3] - The parachute packaging process is irreversible, with each step being recorded and monitored to ensure the parachute's integrity [4] Applications and Future Development - The parachute technology has been applied to various fields, including military parades and commercial aerospace, with the 508th Research Institute developing high-reliability, low-cost parachute systems for commercial spacecraft and drones [10] - The research institute is focusing on three key technological directions: supersonic deceleration technology, flexible deployment structures, and comprehensive evaluation, with the aim of developing new applications and improving existing systems [11][12] - The research institute has established a talent development system, with a focus on cultivating young scientists and engineers, and has recruited 19 new master's and doctoral graduates in the past three years [12]