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http://www.chinaspaceflight.com/manned-spacecraft/new-generation-manned-spacecraft.html
A new generation of multi-purpose manned spacecraft: the return capsule virtual vibration test
Multipurpose spacecraft re-entry capsule model
Returns cabin plus structural configuration of the spherical cap is conical sidewall outsole, its main structure is divided into top, side walls, the end of three parts.
The top is the return capsule of the main load-bearing parts, the need to resist the harsh impact load in the return section parachute process. Top umbrella cabin, catapults, GNSS antenna, antenna and other equipment blackout.
Sidewall includes heat shield, honeycomb panels and siding, in which heat-resistant layer 4, and paste with honeycomb panels together, then screwing manner tendons on the panel is connected. Mounted on the side wall of the main attitude control, pneumatic measuring function device.
Outsole is a key component cushion landing impact loads by inner and outer skins and stringers folder tendons composition. Outsole outsole made of metal and heat-resistant outsole of two parts, wherein the metal outsole mainly installed an information management, energy management, recycling, pneumatic measurement functions of equipment; heat-resistant outsole laid on aerodynamic measurement function devices.
Multi-purpose finite element model of the spacecraft re-entry capsule total of 66,693 nodes, 71,956 units
Because the spacecraft returns required versatile cabin development tasks will not carry out the physical vibration test, vibration test is the only virtual structural vibration assessment program.
Beijing Institute of Spacecraft Environment Engineering established the entire star virtual vibration test system, which contains a mechanical shaker subsystem, control subsystem, power amplifier subsystem, filter and amplifier subsystems; and through virtual vibration test engineering and application technology research, virtual vibration test technology achievements already made the conversion, set up a virtual vibration test spacecraft systems engineering applications, including multi-system co-simulation analysis module, analysis model correction module, jig analysis and simulation modules and test conditions analysis module.
Since being developed in the multi-purpose spacecraft re-entry capsule only requires virtual vibration test, so take advantage of this application software systems engineering acceptance level of the return capsule, identify environmental conditions vibration level virtual tests and make herald and evaluation. Control error multipurpose spacecraft re-entry capsule of virtual sine sweep test and random vibration test, the test at ± 5% or less, in line with a multi-purpose spacecraft re-entry capsule virtual vibration test technical requirements.
40t double shaker vertical finite element model contains 6300 nodes, 5388 units; horizontal finite element model contains 6596 nodes, 5217 units.
Return capsule jig model contains 1537 nodes, 904 units. Jig first natural frequency is greater than 100Hz, to meet the spacecraft vibration test fixture rigidity of the basic requirements.
From Spacecraft Environment Engineering 32 Volume 4
A new generation of multi-purpose manned spacecraft re-entry capsule type projects, Yang - overall unit manned spaceflight, he was one of three jobs, production and protect, schedule, technical elements of the three systems engineering; exploration and practice of reuse equipment warranty system; created 12 months to complete the whole project is designed to AIT's performance; breaking the model number of key technical points.
When the world was still concerned about the Shenzhou on the 10th, when the five branches of aerospace manned spacecraft has launched a new generation of general-purpose Laboratory spacecraft feasibility studies. A new generation of spacecraft technology advanced, high starting point, difficult, is to mention the level of China's manned spacecraft, on the steps of the key projects.
At the crucial moment of the demonstration program, Yang, Wu Wenrui, Dr, and many other comrades often through the night to do the program, change the design, and finally in a short period of three months to complete the multi-purpose spacecraft re-entry capsule of feasibility studies, realization the engineering project.
Today cargo spacecraft, a new generation of manned spacecraft model task is moving forward steadily, manned spacecraft will take up the new lab overall mission to manned spaceflight new journey.
Program envisages
present only one manned rocket Long March 2F, after the revamp of the Long March 5 rockets and the Long March 7 can also be used to launch a manned spacecraft. Due to a new generation of manned spacecraft technical indicators higher than the "Shenzhou" spacecraft, the entire ship will also be a significant increase in weight, the Long March 2F rocket can not meet the emission requirements of the new generation of manned spacecraft. Preliminary analysis, after the revamp of the Long March 5 and the Long March rocket launch 7 new generation of manned spacecraft into near-Earth orbit capacity respectively 14t and 20t.
Corresponding to two next-generation manned spacecraft launch vehicles shown in Figure 14, the weight was 14t and 20t. The modular design of the spacecraft, two identical spacecraft re-entry capsule, carrying different weight propellant propulsion module to accommodate different mission requirements. The main technical characteristics of the spacecraft is:
(1) the number of passengers: 2 to 6;
(2) re-entry speed: Adaptation second cosmic velocity reentry;
(3) autonomous flight: ≥ 21 days;
(4) the dwell time: ≥ 2 years;
(5) the speed increment; 14t spaceship 800m / s, 20t spacecraft 1700m / s;
(6) Task Support: 14t support near-Earth orbit spacecraft, asteroid and Mars missions, 20t spacecraft moon mission support;
(7 ) configuration: two cabin configuration;
(8) the aerodynamic shape: the return capsule using blunt body shape;
(9) escape way: self-powered escape or escape tower escape;
(10) re-entry heat shield material: low-ablative light quality heat-resistant material;
(11) the return capsule of the main structure: the whole wall structure;
(12) Recovery: Group umbrella + balloon, with maritime and land landing capability;
(13) Power generation: photovoltaic power generation systems;
(14) GNC: High precision navigation sensors, jet control;
(15) monitoring and control communication: with black impaired communication capabilities;
(16) Reusable: primarily through landing derogations designed to ensure reusable equipment from as little impact during landing.
新一代多用途载人飞船：返回舱虚拟振动试验 - China Spaceflight
Well. Here is an opinion since he could produce none.
