81 results about "Human spaceflight" patented technology

The invention relates to a low-density ablation thermal insulation type composite and a preparation method thereof. The composite adopts phenolic aerogel of the nanometer particle structure as a matrix and adopts a flexible fiber blanket or a fiber weaving body as a reinforcement body, and the composite is obtained through the steps of phenolic resin preparation, phenolic resin solution preparation, thermal treatment of the flexible fiber blanket or the fiber weaving body, steeping of the flexible fiber blanket or the fiber weaving body with the phenolic resin solution, a sol-gel reaction, aging, drying and curing of the composite and the like. Compared with the prior art, the composite is excellent in thermal protective performance, good in mechanical performance, high in designability, simple in preparation technology, low in cost and easy to process and mold, promotes later-period dimensional cutting, meets different thermal protective needs under the medium heat flow and medium and low heat flow environments, and can be applied to manned space flight and deep space detection aircrafts, outer thermal protective layers of various tactic and strategic weapons working for a short time, and inner ablation heat insulation and thermal protective layers of engines, disposable hypersonic vehicles and the like.

Provided is a manned spacecraft extravehicular maintenance ground simulating system. The system comprises a servo mechanism, a control platform, a vacuum tank, an observation window, spacesuit gloves and a support guide rail. The servo mechanism comprises a base, a stand column, a slide plate and a rotary platform. The base of the servo mechanism is fixed to the support guide rail, and the stand column is installed on the base and can move in the axial direction of the vacuum tank; the slide plate is installed on the stand column and can move in the perpendicular direction; the rotary platform is installed on the slide plate, and can move in the direction vertical to the axial direction of the vacuum tank within a horizontal plane; the rotary platform is internally provided with a motor connected to a rotary disc, the rotary disc is provided with a cross notch which can fix a maintenance equipment imitation part, and the motor rotates to drive the maintenance equipment imitation part to roll; the observation window and the spacesuit gloves are arranged on the vacuum tank. Through the manned spacecraft extravehicular maintenance ground simulating system, the maintenance equipment imitation part can be placed in the vacuum tank, and when the internal and external pressure difference of the spacesuit gloves is simulated, it is simulated that in-orbit extravehicular maintenance experiments are supported for a manned spacecraft when the relative position of the experiment personnel and the maintenance equipment imitation part are arbitrary.

The invention provides a layered high-entropy MAX phase ceramic thermoelectric material and a preparation method thereof. A molecular formula of the layered high-entropy MAX phase ceramic thermoelectric material is Mn+1AXn, M is at least three elements selected from IIIB, IVB, VB and VIB group elements, A is at least one element selected from IIIA, IVA, VA and VIA group elements, X is a carbon element, and n is 1, 2 or 3. The layered high-entropy MAX phase ceramic thermoelectric material is advantaged in that an element ratio in the same position can be regulated and controlled according to actual requirements, the material has a hexagonal crystal system structure, the space group is P63/mmc, a crystal cell is formed by alternately stacking Mn+1Xn units and A-layer atoms in the c direction, and the high-entropy alloy is formed through the design of the combination of more than three M elements so that the high-entropy MAX-phase ceramic thermoelectric material has very wide applicationprospects in the fields of manned spaceflight, national defense war industry, automobile manufacturing, micro-nano electronics and the like, particularly in the fields of thermoelectric power generation, thermoelectric refrigeration and the like.

A deployable electromagnetic radiation deflector shield (DERDS) is disclosed. It is used in protecting manned spacecraft or robotic spacecraft flying outside of the Earth's protective magnetic field as well as manned extra-planetary base stations. This DERDS is deployed from the spacecraft during flight and positioned to be between the Sun and the protected spacecraft (or in the case of Jupiter/Saturn missions, transitioning to be between that planet and the spacecraft). It remains in the proper position from the spacecraft by its own sensors and computer controlled gaseous or ion thrusters. It is deployed away from the spacecraft to better deflect incoming solar radiation (or Jovian radiation and the like), and not have its magnetic field affect the protected spacecraft or extra-planetary base station's equipment and astronauts (as in prior art). Its deployment will also prevent any captured radiation in its generated magnetic torus (like Earth's Van Allen radiation belts) from affecting the protected spacecraft or extra-planetary base station. The DERDS has a self-contained superconducting electromagnet that creates a magnetic field to deflect incoming solar radiation, including CMEs (coronal mass ejections) and repositioned for x-ray and gamma ray bursts from distant supernovae. It utilizes a tethered umbilical cord to transmit electrical power and back up commands from the spacecraft or satellite. Another variant or embodiment would be to mount the DERDS on a telescopic/extendable solid mount and remove the need for thrusters within the DERDS as it would move as an attachment to the spacecraft. The source of electrical power in this embodiment is the protected spacecraft's solar arrays, RTG (radioisotope thermal generator), fuel cells, and or batteries. In addition, it can be constructed with these power supplies mounted within the DERDS, as in a self-contained deployed spacecraft/satellite. Another embodiment of the DERDS would be mounted on an ecliptic track wherein the DERDS moves along the track to protect the manned base station.

The invention discloses an intelligent remote parameter monitoring system for a manned spacecraft manufacturing equipment production line. The intelligent remote parameter monitoring system comprisesa plurality of data acquisition systems, a plurality of local computers and a database server, wherein the plurality of data acquisition systems are correspondingly connected with the plurality of local computers, the plurality of local computers are connected with the database server, and each data acquisition system comprises a field controller, a camera, a card reader and a scanning gun; and each local computer is provided with an OPC client, a local database and a local parameter monitoring system. The database server is provided with a data synchronization system, a system database and aninformation integration remote monitoring system. According to the invention, local monitoring and remote monitoring of a plurality of equipment parameters are realized on a manned spacecraft manufacturing equipment production line. According to the invention, the production state and production data of each device can be remotely checked in real time by connecting with the Internet in a conference room large screen or an office terminal, and remote monitoring and management of field devices and task completion conditions are realized.

The invention relates to a pressure protection device used under the pressure loss condition of a sealed cabin of a re-entry capsule of a manned spacecraft. A flexible cabin inner bag is arranged in aconnecting area of the side wall of the re-entry capsule and an outsole; the side wall is shaped after unfolding; when the sealed cabin of the re-entry capsule loses pressure, by starting the flexible cabin inner bag installed in the re-entry capsule in advance, the flexible cabin inner bag is rapidly unfolded, fixed, inflated and sealed, so that a new sealed environment is created, and resourcessuch as a life support system, cabin pressure clothes and communication which are originally arranged on the spaceship are used for jointly guaranteeing that astronauts fly emergently on orbit for seven days until the astronauts return safely.

The invention relates to a flexible deployable active defense device which comprises a protection device, an inflation device, a locking device and a rotation control device. The protection device comprises an expandable protection screen and an inflatable supporting rod, the expandable protection screen can be divided into at least two functional layers according to the protection type, and one functional layer is a thermal shock protection screen and used for preventing attacks of laser weapons; the other one is a kinetic energy impact protection screen which respectively undertakes the functions of differentiating energy distribution and attenuating and arresting kinetic energy; the functional layers can be adjusted according to actual requirements; the inflatable supporting rod is composed of a telescopic rod and an inner container. The method has a wide application prospect in the field of spacecraft protection and safety, can be particularly used for high-value satellite protection, manned spacecraft protection and the like, and can further realize product serialization and industrialization.

The invention relates to the technical field of manned spaceflight, in particular to a constant-force wrench used by an astronaut in a zero-gravity environment. The constant-force wrench comprises a handle shell, a ratchet device, a locking mechanism, an extension bar and a force measuring assembly, wherein the ratchet device is arranged on the handle shell; the force measuring assembly and the ratchet device are arranged in a matched mode to control input torque; and the extension bar is connected with the force measuring assembly through the locking mechanism. According to the constant-force wrench used by the astronaut in the zero-gravity environment, through the arrangement of the force measuring assembly, the force measuring assembly can measure and fix force in the screw tightening process; on the premise that the astronaut cannot accurately sense the magnitude of applied force, force fixing operation needs to be completed on a non-disengaging fastening device in the screwing process, and the torque is controlled within a certain range; and in addition, through the arrangement of the ratchet device and the locking mechanism, alignment operation and vertical force application operation can be rapidly conducted on the extension bar, so that the astronaut can screw nails through the wrench more conveniently and rapidly.

The invention discloses a high-entropy ceramic material and a preparation method thereof. The chemical formula of the high-entropy ceramic material is TiaVbCrcNbdTaeAlC, wherein a + b + c + d + e = 2, and the values of a, b, c, d and e are not completely the same. Therefore, the high-entropy ceramic material has the advantages of high strength, high hardness, strong oxidation resistance, good thermal stability and the like, and has a very wide application prospect in the fields of manned spaceflight, national defense war industry, automobile manufacturing, micro-nano electronics and the like.

The invention relates to a manned spacecraft on-orbit service and maintenance verification method. The method comprises the following steps of a building a test environment, transporting materials required by on-orbit verification to an extraterrestrial space station, and quickly building the test environment by utilizing the existing resources of a manned aerospace system and the flexible controlcapability of an astronaut; b assembling materials in a cubesat module form in a space station cabin, and carrying out on-orbit comprehensive detection on the materials; and c releasing the target inthe materials out of the space station cabin, and performing an approaching observation test and a net capturing test on the target. Verification is carried out on the manned spacecraft on-orbit service and maintenance technology, and compared with other technical verification methods, the method has the advantages of being good in technical basis, high in supporting capacity, small in task risk,large in number of guarantee resources, low in test cost, high in efficiency, comprehensive in verification and the like.

The invention relates to a manned spacecraft on-orbit replaceable unit identification method. The method comprises the following steps of S1, determining a manned spacecraft on-orbit maintenance strategy; S2, performing life analysis on the manned spacecraft, and determining an on-orbit maintenance project in combination with the on-orbit maintenance strategy; S3, analyzing the maintenance characteristics of the on-orbit maintenance project, and determining alternative units; S4, analyzing the influence of the alternative units during maintenance and replacement; and S5, screening out an on-orbit replaceable unit from the alternative units. Requirements and influences of the on-orbit maintenance unit on the aspects of safety, reliability, maintainability, testability, supportability and the like are comprehensively considered, so that the purposes of quickly and conveniently replacing the unit and reducing maintenance and guarantee resources on the basis of guaranteeing system safety are achieved.

The invention relates to an orbit design method for detecting and returning a near-earth asteroid by a manned spacecraft, comprising the following steps: S1, acquiring an intersection point of the spacecraft and the target asteroid according to the first orbit characteristic of the target asteroid; S2, calculating the first true proximal angle of the Earth when the spacecraft escapes from the Earth and transfers to the transition orbit; S3. calculating a first velocity increment for the spacecraft to escape from the Earth and transfer to the transition orbit, and a second velocity increment for the spacecraft to rendezvous with the target asteroid from the transition orbit; S4. acquiring a third true proximity angle of the asteroid when the spacecraft flies away from the asteroid and transfers to the return orbit, and calculating a fourth true proximity angle of the Earth when the spacecraft enters the Earth's gravitational range from the return orbit; S5, calculating a third velocityincrement for the transfer of the spacecraft from the target asteroid to the return orbit and the reentry velocity of the spacecraft into the atmosphere when the spacecraft enters the Earth's gravitational range from the return orbit; S6. calculating the total velocity increment and the total time of flight of the spacecraft.

The disclosed subject matter relates to a radiation shielding apparatus including a cryogenic vessel and a cryogenic hydrogen radiation shielding material capable of providing a radiation shield, the cryogenic hydrogen radiation shielding material including cryogenic hydrogen.

The invention relates to an in-orbit test method for a low earth orbit long-life manned spacecraft. The in-orbit test method for the low earth orbit long-life manned spacecraft comprises the followingsteps of a, in-orbit test carried out after the spacecraft goes into a light orbit; b, in-orbit test carried out before the spacecraft develops a docking and adding mission; and c, in-orbit test carried out during the autonomous flight period of the spacecraft. The in-orbit test method for the low earth orbit long-life manned spacecraft can make targeted test projects and carry out multiple in-orbit tests for different flight stages and the executions of different missions.

The invention relates to a rat simulation weightless treadmill training method and a rat simulation weightless treadmill. The rat simulation weightless treadmill training method comprises steps of setting a rat treadmill and enabling an acute angle to be formed between the treadmill and the horizontal plane; arranging a baffle board at one turnup end of the treadmill and enabling the baffle board to extend out of a fixed pulley support; remaining a through hole in the baffle board; placing the rat on the treadmill with the tail orienting to one end of the baffle board, fixing one end of an insulated connection part to the tail of the rat and enabling a load bearing part to be fixed at the other end of the insulated connection part after the other end penetrating the through hole of the baffle board and straddling on a groove of a fixed pulley. The rat simulation weightless treadmill training method can satisfy manned space flight special scientific research requirements and enables the space zero gravity environment to be simulated in the ground.

An outboard maintenance tool testing method comprises the following steps that 1, a pair of outboard space suit gloves is installed on a vacuum tank flange; 2, a simulated maintenance device sample is installed, and a maintenance interface of the simulated maintenance device sample is flexibly connected; 3, an outboard maintenance tool to be tested is put in a vacuum tank and is flexibly connected with the top of the vacuum tank; 4, a servo mechanism is controlled to move, and the simulated maintenance device sample is prevented from damaging the outboard space suit gloves in the pressure extraction process; 5, a cabin door of the vacuum tank is closed, and differential pressure simulation is performed; 6, the relative positions of the simulated maintenance device sample and the outboard space suit gloves are adjusted; 7, the maintenance interface is operated and experimented. The maintenance tool and the maintenance interface can be flexibly connected into the vacuum tank and are prevented from slipping off and damaging a testing device in the maintenance operation process, meanwhile the internal-external pressure difference of the vacuum tank and the relative positions of the maintenance device and a tester can be simulated, and the method supports ground testing of outboard maintenance tools of manned spacecrafts.

The invention relates to manned spaceflight space station scientific experiment equipment, in particular to a scientific glove box mechanical arm for a space station. The mechanical arm is arranged in the scientific glove box for the space station and comprises six joints connected in sequence and a tail end rapid connector connected with a tail end joint, the six joints are all rotating joints, and a first joint is connected with the bottom of the scientific glove box for the space station and can rotate along an arc track. According to the mechanical arm, six-degree-of-freedom operation tasks can be achieved so as to assist astronauts in completing fine operations or autonomously completing the fine operations, the labor intensity of the astronauts in operating the fine tasks in orbit can be greatly reduced, and the task success rate of the astronauts can be improved.

The invention relates to a long-term on-orbit danger event analysis method of a manned spacecraft and a danger analysis system. The analysis method comprises the following steps: a, determining dangerevents in an on-orbit process of the manned spacecraft, and analyzing consequence status and severity levels of the danger events; b, carrying out function analysis on the manned spacecraft, and carrying out hierarchical division on functions of the manned spacecraft according to the danger events; c, identifying sources of danger that can lead to danger events; d, analyzing a sequence of dangerevents caused by each danger source, determining severity degrees of the danger events, and analyzing risk of fault consequences of the danger events; and e, for high-risk danger events, using fault tree analysis to fault trees in a prioritized manner for reanalysis. According to the analysis method of the invention, serious dangers which may occur in the on-orbit running process are identified, system resource cost minimization of safety control measures is ensured, and maximum efficiency is realized.

The invention provides an energy dual-redundancy system and a control method thereof. The energy dual-redundancy system comprises a controller, a main oil way and an auxiliary oil way. Each of the main oil way and the auxiliary oil way comprises a fine oil filter, an overflow valve, a servo valve, a hydraulic cylinder and a displacement sensor, and further comprises a pressure sensor, an energy selection valve, a high-pressure hose, a controller and a double-threshold logic control strategy. Automatic switching and fault isolation between the main oil way and the auxiliary oil way of an energypart are implemented, the structure is simple, the weight is light, and switching responding is fast. Because the double-threshold logic control strategy is applied, false switching between the mainoil way and the auxiliary oil way is avoided, the reliability of a servo system can be improved by one order of magnitude relative to a product in service, and the requirement for high reliability ofmanned aerospace lunar landing in China is met. The energy dual-redundancy system and the control method thereof belong to the field of electro-hydraulic servo systems.

The invention relates to a spacecraft cable three-dimensional wiring method, which comprises the following steps of: a, laying a main channel of a wiring system according to the shape structure of a single-machine product on a spacecraft; b, extracting a main channel feature position, and creating a cable path; and c, based on the undirected graph, creating a wiring optimal path algorithm, and obtaining an optimal path of the cable network path for wiring. According to the spacecraft cable three-dimensional wiring method, cable wiring of the shortest path can be achieved, the design efficiencyis improved, and meanwhile the weight of the spacecraft cable is reduced. Aiming at key links influencing design quality and efficiency in a cable network wiring design process, a set of manned spacecraft cable network three-dimensional wiring design new method based on an intelligent algorithm is formed.

The invention discloses an on-orbit dragging-off tool for a case in a manned spaceflight cabin, and belongs to the field of manned spaceflight systems. According to the technical scheme, a spaceflight electronic case is installed on the lower portion of a step frame of the spaceflight cabinet and linearly moves through a guide rail; a crank connecting rod precession device is rotationally connected to the guide rail through a crank connecting rod hinge device hinged to a hinge base of a front panel of the case, the rotating motion of the crank connecting rod precession device is converted into linear motion of the spaceflight electronic case along the guide rail, and the crank connecting rod precession device rotates clockwise or anticlockwise. And the spaceflight electronic case is linked to linearly move forwards and backwards along the guide rail, so that on-orbit dragging of the spaceflight electronic case and a back plate is quickly realized. In-orbit dragging of the case and the back plate is achieved through a lever mechanism and a crank sliding block mechanism, operation is convenient, operation force and physical output of astronauts can be effectively reduced, the manned spaceflight operation condition can be adapted, and the in-orbit operation capacity of the astronauts and the pulling force needed for disassembling and assembling the case are met.