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218 results about "Lunar soil" patented technology
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Lunar soil is the fine fraction of the regolith found on the surface of the Moon. Its properties can differ significantly from those of terrestrial soil. The physical properties of lunar soil are primarily the result of mechanical disintegration of basaltic and anorthositic rock, caused by continual meteoric impacts and bombardment by solar and interstellar charged atomic particles over years. The process is largely one of mechanical weathering in which the particles are ground to finer and finer size over time. This situation contrasts fundamentally to terrestrial soil formation, mediated by the presence of molecular oxygen (O₂), humidity, atmospheric wind, and a robust array of contributing biological processes. Some have argued that the term soil is not correct in reference to the Moon because on Earth, soil is defined as having organic content, whereas the Moon has none. However, standard usage among lunar scientists is to ignore that distinction.
Gatherer of deep soil of moon
ActiveCN102359891APrevent leakageRecycling is simple and reliableWithdrawing sample devicesMotor driveLunar soil
The invention discloses a gatherer of deep soil of the moon. An upper end surface of a housing of the gatherer is provided with a drilling machine and mechanical arm connecting device. A first separator plate, a second separator plate and a third separator plate are installed in the housing from top to bottom. A screw driving motor is installed on the first separator plate and drives a screw by a gear. A slide block in cooperation with the screw is fixed on a slider. Four guide rods pass through four through holes located at an end of the slider. A drill pipe driving motor is installed in the middle of the four guide rods. The drill pipe driving motor drives a drill pipe connector by a gear. Electromagnet driven wedges are arranged in the drill pipe connector. The electromagnet driven wedges stretch out from pin grooves of inner conical surfaces of corresponding drill pipes. A drill pipe rotating disk is installed in the center of the second separator plate. The drill pipe rotating disk is in cooperation with a drill pipe rotating disk driving motor by a gear. The third separator plate is arranged under a clamping device. Multiple drills are installed on a drill rotating disk along a circumferencial direction. On the third separator plate, a drill rotating disk driving motor is in cooperation with the drill rotating disk by a gear. A lunar soil bag is enclosed in the drill pipes having hollow structures. The gatherer of deep soil of the moon has the characteristics of compact structure, small floor space, high reliability of a transmission mode, large drilling and production depth, large sampling amount and simple and reliable sample recovery.
Owner:ZHEJIANG UNIV
Moon soil sampling device
The invention provides a moon soil sampler, pertains to the field for detecting spatial resources, which comprises a casing, a power part in the casing, and a rod-changing section. The power part comprises a lifting motor, a drive gear, a ball screw, a screw nut, a connection disc, a rotation motor, a joint and a guideway that are sequentially connected. The rod-changing section comprises a gear box, a rotary shaft connected with the gear box, a 2-jaw clamp on the rotary shaft, an end gear ring positioner and a 1-jaw clamp that are arranged at the end of the rotary shaft and are connected with each other. On the 2-jaw clamp, a hollow drill rod with outer thread is provided. The invention is compact, light, with low energy consumption, can automatically sample in deep layer, can take all soil sample from the moon surface to the sampled depth, and can keep the sample basically as it is, and allows easy recovery.
Owner:BEIHANG UNIV
Ground walking test system of lunar surface inspection device
ActiveCN102564784AFully assess walking abilityMeet testing needsCosmonautic condition simulationsStructural/machines measurementLunar soilLunar gravity
The invention discloses a ground walking test system of a lunar surface inspection device. The ground walking test system comprises a lunar surface lunar soil and lunar appearance simulation subsystem, a lunar surface gravity simulation subsystem, an illumination simulation subsystem and supporting test facilities, wherein the lunar soil and lunar appearance simulation subsystem is used for simulating lunar soil environments of the lunar surface and mare / lunar land areas; the lunar surface gravity simulation subsystem is used for accurately reproducing the wheel-ground stress condition of the inspection device in a lunar gravity environment on the ground, so that requirements for a ground walking test of the inspection device are met; and the illumination simulation subsystem is used for simulating a lunar surface illumination environment of a landing area. The ground walking test system is successfully applied to a ground test of the inspection device to finish multiple test tasks such as mobile performance, autonomous navigation, path planning, a joint test of a lander and the inspection device and the like in a matched mode, and every technical index meets test requirements, so that a condition for comprehensively and fully checking the walking performance of the inspection device is provided.
Owner:BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
Moon lunar soil shallow layer drilling and coring method
InactiveCN101694424ASolving the Coring ProblemTechnological innovationWithdrawing sample devicesSoil scienceRock core
The invention relates to a moon lunar soil shallow layer drilling and coring method, which relates to a moon unconsolidated formation lunar soil drilling exploration sampling method. The invention adopts a drill head to conduct center-drilling hole aiming at the characteristics that the moon shallow layer lunar soil is loose sand without bonding property, as the drilling deep-going of the drill bit, drilled dry loose rock cores are led to core collect through a coring cannula on the periphery of the drill bit, the lower portion of a screw thread drill bit of a drilling tool which uses the method of the invention is a drill bit vane, an upper bearing seat and a bearing are statically connected in a matching way, a connecting sleeve and a bearing are fixedly connected, the coring cannula is connected with screw threads of the connecting sleeve through the upper end of an outer pipe hole, and is sleeved on the periphery of the threaded rod drill bit, and the inner pipe hole of the coring cannula integrates rock cores. The moon lunar soil shallow layer drilling and coring method has innovative technology and outstanding technical effect, improves the maximum coring rate of 3.07% of the traditional drilling inner-tube coring method to 95%, comprehensively solves the difficult problems of coring in loose sand grain layers, and supplies a feasible moon lunar soil shallow layer drilling and coring method and an application drilling tool for lunar exploration geologic research.
Owner:WUHAN DIDA CHANGJIANG BIT
High and low temperature vacuum lunar soil environment simulator
The invention discloses a high and low temperature vacuum lunar soil environment simulator, which comprises a high and low temperature vacuum environment simulator including a simulant lunar soil containing device and a vacuum tank; a low temperature refrigeration cycle device; a diffusion pump; a mechanical pump and a heating component; the simulant lunar soil containing device is provided with a lunar soil drum for containing simulant lunar soil, and the location of the simulant lunar soil containing device is trimmed by a mobile platform; the simulant lunar soil containing device is arranged in the vacuum tank; the vacuum tank is vacuumized by a vacuum tube through the diffusion pump and the former mechanical pump; the low temperature refrigeration cycle device can refrigerate the lunar soil by a purple copper pipe which is designed on the wall of the lunar soil drum and is internally provided with a freezing medium; the surface of the simulant lunar soil is heated by an iodine-tungsten lamp arranged above the lunar soil drum. The high and low temperature vacuum lunar soil environment simulator has the advantages that daytime high temperature or night low temperature environment of surface-layer lunar soil and low temperature environment of deep-layer lunar soil under vacuum conditions can be simulated, and the high compactness of 1.9g / cm3 and moisture content less than 0.1% of the simulant lunar soil can be ensured.
Owner:BEIHANG UNIV
Method for preparing simulative lunar soil
InactiveCN101957280ASimilar performanceWithdrawing sample devicesPreparing sample for investigationSoil scienceLunar soil
The invention discloses a method for preparing simulative lunar soil. The method comprises the following steps of: selecting and collecting source rock samples; pulverizing the collected source rock samples and selecting the source rock samples with a certain precision from the pulverized source rock samples; performing whole rock analysis on the selected source rock samples; preparing initial samples of the simulative lunar soil according to the whole rock analysis result; sintering the prepared initial samples of the simulative lunar soil into glass; and pulverizing the sintered glass and then mixing the pulverized glass and the prepared initial samples of the simulative lunar soil in a certain ratio to obtain the simulative lunar soil. By the method, the simulative lunar soil is prepared from the earth source rock samples; and the simulative lunar soil samples with the properties similar to those of authentic lunar samples can be prepared for research in the aspects of lunar science, engineering and the like.
Owner:NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
Lander falling weight impact test device with adjustable angles
InactiveCN103323202AGet dynamic characteristicsMaterial strength using single impulsive forceShock testingLunar soilData acquisition
The invention discloses a lander falling weight impact test device with adjustable angles. The lander falling weight impact test device with the adjustable angles is composed of a rack, a lifting device, an oil cylinder, a releasing device, weight-balancing weights, a hammer carrier, a guide rail, a buffer leg angle adjustment device, buffer legs, foot pads, a soil box, a cutting board and a data acquisition system. According to the lander falling weight impact test device with the adjustable angles, different impact rates are realized through control over height; the impact energy is controlled through the weight-balancing weights, and screws are used for limiting so that the buffer legs and the foot pads can impact simulated lunar soil at different angles; aluminum pipes with different diameters are used as buffer materials, so that the lander impact test conditions are reflected authentically; the dynamic characteristics of the interaction between the foot pads and the simulated lunar soil in the impact process are obtained simply, conveniently and safely.
Owner:JILIN UNIV
Recovery device of lunar deep soil collector
ActiveCN102359889AEasy maintenanceReduced strength requirementsWithdrawing sample devicesGear driveLunar soil
The invention discloses a recovery device of a lunar deep soil collector, which is composed of an upper and a lower frame. A recovery box driving motor is installed on the lower frame, inside which a gear train is mounted. A first level driven gear meshes with a driving gear on the shaft of the recovery box driving motor, and a last level driven gear is mounted on the recovery box driving disk onthe same shaft. A recovery box cover is disposed in a central hole of the upper frame, the four corners of which are respectively provided with a linear motor. And the movement end of each linear motor is aligned to respective clamping slots uniformly distributed on the circumferential peripheries of the recovery box cover. The recovery box is arranged between the upper and lower frames. A bolt on the lower end surface of the recovery box is inserted into a corresponding through hole on the driving disk. An external thread on the upper end of the external cylindrical surface of the recovery box cooperates with an internal thread on the internal cylindrical surface of the recovery box cover. Therefore, the device of the invention has the advantages of concise and compact structure, space saving, small recovery mass, high driving mode reliability, easy and reliable sample sealing and transfer, and can be used for lunar soil transfer, sealing and recovery after the sampling of a lunar soil multi-rod drill.
Owner:ZHEJIANG UNIV
Device for drilling and coring lunar soil in moon outside hole
The invention relates to a device for drilling and coring lunar soil in the moon outside a hole, and belongs to the field of equipments for sampling loose lunar soil in the moon. A screw rod drill bit of the device is a solid drill bit, a drill bit blade is arranged on the circumferential surface of the lower part of the screw rod drill bit, a bearing is mounted at the upper part of the screw rod drill bit in a matching manner, and a connection sleeve is fixedly connected with the bearing; a collector is a hollow sleeve, an annular empty inclined plane is arranged inside the collector, a lower port of the collector is connected with a coring tube orifice in a matching manner, an upper port of the collector is connected with the connection sleeve in a matching manner to be sleeved on the periphery of the screw rod drill bit, and a sand guide mouth is formed at the bottom part of the collector and is connected with a core filling hose; therefore, the loose sand rises to a certain height along with the drilling of the drill bit to enter the collector, and the sand can flow into the core holding hose outside the hole through the sand guide mouth of the collector under the action of gravity force and centrifugal force. The device creatively solves the difficult problem that the loose lunar soil in the moon is drilled under the unattended operation conditions, efficiently and conveniently finishes the core package and transfer of moon lunar soil drilling and coring, and particularly provides feasible excellent equipment for the lunar exploration geology research.
Owner:WUHAN DIDA CHANGJIANG BIT
Built-in soft lunar soil sample sampling mechanism
ActiveCN105510078AGet raw scientific valueSave recycling spaceWithdrawing sample devicesLunar soilEngineering
The invention discloses a built-in soft lunar soil sample sampling mechanism. A core tube top joint, a core lifting stay rope, a core taking tube, a fixed ring, a drill rod sub, a spacing ring, a soft core-taking bag, a drill rod, a core taking belt, a guide ring, a core tube base joint, a pull head assembly, a sealer and a drill. The drill rod sub, the drill rod and the drill are fixedly connected to form a hollow drilling tool. The core tube top joint, the core taking tube and the core tube base joint form a hard core taking tube. The core tube base joint has an inner annular cavity structure. The soft core-taking bag is connected on the sealer, which is preplaced in the annular cavity of the core tube base joint. The spacing ring is installed on the soft core taking bag. The core taking belt passes through the guide ring to be fixedly connected on the pull head assembly. The sampling mechanism of the invention is simple and operates reliably, and can keep sequence information of deep lunar soil samples. The soft core taking bag for wrapping lunar soil samples can be used to realize in situ packaging, winding and recovering of deep lunar soil samples 2 m deep below the lunar surface, and recovery space is saved.
Owner:BEIJING SATELLITE MFG FACTORY
Pole-changing positioning mechanism and pole-changing positioning method for multi-pole deep lunar soil sampler
InactiveCN101936822AAchieve lockingAchieve unlockWithdrawing sample devicesLunar soilInterference problem
The invention provides a pole-changing positioning mechanism and a pole-changing positioning method for a multi-pole deep lunar soil sampler. The pole-changing positioning mechanism comprises a clamping mechanism and a pole-changing mechanism, wherein the clamping mechanism comprises a support mechanism at the lower end, a guide mechanism at the upper end and a central rotating shaft. The support mechanism at the lower end comprises a cylindrical clamp, a tension spring, a rotating shaft of the cylindrical clamp, a clamp rotating disc, a bolt A and a nut A; the guide mechanism at the upper end comprises a guide handle, a screw A, a guide rotating disc, a bolt B and a nut B; and the pole-changing mechanism comprises a positioning sliding block A, a positioning sliding block B, the rotating shaft of a lever frame, a pivot bracket, a return spring, the lever frame, a screw B, a pivot rotating shaft and a gear case. The pole-changing positioning mechanism has simple structure and low energy consumption, and can simplify the control process; simultaneously, the pole-changing positioning mechanism can solve the motion interference problem during pole-changing positioning, lead a drill rod to realize complete drilling down and achieve the desired sampling depth.
Owner:BEIHANG UNIV
Method for rapidly improving plough-layer soil of newly cultivated barren lands in southern hilly and mountainous regions
The invention discloses a method for rapidly improving plough-layer soil of newly cultivated barren lands in southern hilly and mountainous regions, belonging to the technical field of soil improvement. The method comprises the steps of cultivating the barren lands for preparation; digging latticed fertilizing and planting ditches; preparing and applying mixtures including a fertilizer and a water-retaining agent; sowing seeds of ryegrass for the first time, cradling and covering; sowing seeds of ryegrass next year, cradling and covering; and the like. The method disclosed by the invention is definite in step and simple and feasible in process, after two years continuous integrated improvement, the soil bulk density is reduced, the void fraction is increased, the level of nutritive substances such as organic matters, total nitrogen, quick-acting nitrogen, phosphorus and potassium is improved obviously, the plough-layer soil can reach a medium fertility level, and normal agricultural utilization can be carried out. The method can be popularized and applied in newly cultivated barren lands in southern hilly and mountainous regions of China.
Owner:ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
High-speed impacting penetrator structure for detecting lunar soil
The invention relates to a high-speed impacting penetrator structure and particularly relates to a high-speed impacting penetrator structure for detecting lunar soil. The high-speed impacting penetrator structure comprises a penetrator shell, a penetrator hidden head, a separation end cover, instrument mounting modules, a buffering damping layer and a hidden head vibration-absorption damping structure, wherein the buffering damping layer is arranged on the inner wall of the penetrator shell and the penetrator shell is internally provided with the plurality of instrument mounting modules for mounting a planet detection instrument; the front end and the rear end of the penetrator shell are connected with the penetrator hidden head and the separation end cover respectively; and the penetrator hidden head is internally provided with the hidden head vibration-absorption damping structure. The high-speed impacting penetrator structure is light in weight and high in rigidity, has a good vibration-absorption performance and can be used for effectively impacting and penetrating a small celestial body, so that scientific detection on inner composition and structure of the moon is carried out.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
Method for measuring complex dielectric constant of weak-loss medium
InactiveCN103698613AEasy to operateSimple calculationResistance/reactance/impedenceDielectricLunar soil
The invention provides a method for measuring complex dielectric constant of a weak-loss medium. The complex dielectric constant of soil is a key parameter for associating soil attribute with microwave radiating capacity. The relationship between the soil attribute and the microwave radiating capacity can be built by accurately measuring the complex dielectric constant of the soil medium. According to the method provided by the invention, a transmission reflecting method and a free space wave method are combined; a measuring system is formed by a network analysis meter and a microwave narrow-band antenna; a semi-infinite space required by the free space method is simulated by a wave-absorbing material; the reflection coefficient of the surface of the measured medium is measured on the basis of metal plate calibration; the complex dielectric constant of the soil medium is calculated according to a double-layer plane medium transmission reflecting method principle. The complex dielectric constants of three standard mediums such as lunar soil, polytetrafluoroethylene and flesh water are simulated by the method provided by the invention, and the measuring result coincides with the theoretical model value. Compared with the existing method, the method provided by the invention has the advantages of easiness in operation and simplicity in calculation, and is an effective method for measuring the dielectric constant of the soil.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
Lunar soil deep drilling sample recycling mechanism
ActiveCN102359346ALarge sampling rangeEasy to recycleDrilling rodsConstructionsLunar soilDeep drilling
Owner:ZHEJIANG UNIV
Method for measuring lunar soil dielectric coefficient by using single-transmitting and double-receiving lunar surface ground penetrating radar
The invention discloses a method for measuring a lunar soil dielectric coefficient by using a single-transmitting and double-receiving lunar surface ground penetrating radar. A transmitting antenna of the lunar surface ground penetrating radar is Tx, and receiving antennas of the lunar surface ground penetrating radar are Rx1 and Rx2. The method includes the following steps: step1, acquiring propagation time t1 and t2 consumed by radar signals radiated by the transmitting antenna to reach the receiving antennas from radar echo data, step2, establishing a simultaneous equation to acquire the propagation speed v of radar waves in lunar soil according to the acquired propagation time t1 and t2 consumed by the radar signals to be echoed to the receiving antennas, and step3, acquiring the lunar soil dielectric coefficient epsilon (regolith) according to the acquired propagation speed v of the radar waves in the lunar soil. According to the method, a single-transmitting and double-receiving detection mode is introduced in the moon measuring radar, the method for measuring the lunar soil dielectric coefficient by using the lunar surface ground penetrating radar with the double receiving antennas is established, relations between distances of the receiving antennas and the transmitting antenna and a detection depth is provided, and bases are provided for designing single-transmitting and double-receiving planet surface ground penetrating radars in future.
Owner:NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
Lunar surface rock detection method based on super-pixel description
ActiveCN103871062ATaking noise immunity into considerationAdaptableImage enhancementImage analysisLunar soilComputer science
The invention discloses a lunar surface rock detection method based on super-pixel description. Firstly, anisotropic smoothness is performed on an image so that grains of lunar soil and in the area of rock can be weakened, but edge information is reserved well; further, the image is over segmented into super pixels, and with the super-pixel description method, the area of rock is detected by detecting holes. The area of rock can be detected fast with the method, and the boundary for describing the rock is accurately positioned.
Owner:BEIJING INST OF CONTROL ENG
Method for extracting metal and preparing oxygen from lunar soil/lunar rock mixed oxides
ActiveCN103643259AWill not restore precipitationEasy to separateElectrolysis componentsMetallic aluminumSlag
The invention belongs to the field of metallurgy, and particularly relates to a method for extracting metal and preparing oxygen from lunar soil / lunar rock mixed oxides. The method comprises the following steps: carrying out aluminothermic reduction on lunar soil / lunar rock mixed oxides at 940-2200 DEG C for 2-6 hours by using metal aluminum as a reducer, carrying out slag-metal separation to obtain an Al-Si-Fe alloy and Al2O3-rich mixed oxides, dissolving the Al2O3-rich mixed oxides in a cryolite-base fused salt electrolyte Na3AlF6-AlF3, and carrying out electrolysis at 930-985 DEG C by using a Fe-Ni alloy and a Fe-Ni-Al2O3 metal-base composite material as an anode while controlling the current density in the electrolysis process at 0.4-1.2A / cm<2>, thereby bubbling oxygen at the anode and obtaining metal aluminum at the cathode. According to the method, the mixed oxides containing SiO2, Al2O3, Fe2O3, MgO, CaO and Na2O are subjected to aluminothermic reduction at high temperature, and the electrolysis is performed by using the inert anode to prepare the metal aluminum and oxygen; and thus, the method can be used in industrial practice to implement green metallurgy and clean production with zero carbon consumption and zero greenhouse gas emission, and has important meanings for establishing lunar bases and front base stations in future.
Owner:NORTHEASTERN UNIV LIAONING
Multi-layer soil collecting device for soil detection
The invention discloses a multi-layer soil collecting device for soil detection. The device comprises a drill bit, a reinforcing rib, a pedal, a sampler, a rotating disc, a bearing, a rectangular groove, a connecting rod, a sampling device, a sealing plate, a baffle plate, a compression spring, a circular groove, a soil shovel, a push rod, a hydraulic cylinder, a piston, a soil storage cabin, an electric control switch, a hydraulic machine, anti-sliding pads, fixing rings and a soil baffle device, wherein the sampler is of a columnar structure; the rotating disc is arranged at the top of the sampler; the inner ring of the rotating disc is welded with one end of the connecting rod; the other end of the connecting plate is welded with the top side surface of the sampler; the pedal is arranged in a slight upper position of the sampler; the sampler is perpendicular to the pedal; the bearing is arranged at the connecting part of the sampler and the pedal; the bearing is fixedly mounted in the middle of the pedal; the fixing rings are respectively arranged on two sides of the top of the pedal; the anti-sliding pads are arranged on the pedal inside the fixing rings; the reinforcing rib isarranged on the outer side of the sampler below the pedal.
Owner:山西则一天诚节能环保科技有限公司
Apparatus and method for in-situ microwave consolidation of planetary materials containing nano-sized metallic iron particles
An apparatus and method for on-site microwave consolidation of planetary regolith, soil and dust is disclosed. Such particulate materials may be converted into useful products such as roadways and other construction materials. In one embodiment, a portable microwave generator and waveguide system is used to generate and direct microwaves to a lunar surface containing fine iron-containing particles to sinter and / or melt the particles. The portable system may be provided in the form of a lunar paver with a single or multiple waveguides arranged to direct sufficient microwave energy to the lunar surface to heat, sinter, melt, or otherwise consolidate the lunar soil into a solid mass suitable for use as a road or path. Other applications of this in-situ microwave heating process include the release of solar-wind implanted gases, extraction of polar water-ice, and production of oxygen.
Owner:TRANQUILITY BASE +1
Measuring method capable of simulating lunar soil mechanical properties in low-gravity environment
The invention discloses a measuring method capable of simulating lunar soil mechanical properties in low-gravity environment. According to the method, a special low-gravity environment simulation device is used, through an inclined test table, low-gravity environment is simulated in component force directions, and various component forces generated in the inclination process are related to the inclination angle; in the simulation process, the force-bearing condition inside the soil mass is detected through a granular mixture force distribution test, so that the detection is taken as a basic test of the measuring test for simulating the lunar soil mechanical properties; the method is used for evaluating mechanical property parameters of the simulated lunar soil in a 1g of gravity field and a low-gravity field, wherein the parameters include subsidence index n, cohesion deformation modulus KC, friction deformation modulus k phi, internal friction angle phi, cohesion c, and cone index CI value; and the parameters can be obtained through a pressure-bearing characteristic test, a shear characteristic test and a penetration characteristic test for simulating lunar soil. According to the measuring method, the special low-gravity environment simulation device is utilized, and the test of simulating soil mechanical parameters in the 1g of ground gravity environment and the low-gravity environment can be finished simultaneously, so that the differences of the mechanical properties of the lunar soil in different gravity fields can be comparatively analyzed, and the interaction relation of soil machines in deep space gravity environment can be revealed.
Owner:JILIN UNIV
Selenographic environment simulation device used for simulating selenographic drilling test
ActiveCN105004541ATake advantage ofQuality improvementStructural/machines measurementVacuum pumpingLunar soil
The invention discloses a selenographic environment simulation device used for simulating selenographic drilling tests. The selenographic environment simulation device comprises a vacuum tank system, a vacuum pumping system, a heating and refrigerating system and a data acquisition and control system, wherein the vacuum tank system comprises a vacuum tank, a lunar soil barrel, a lunar soil barrel rotating mechanism and a lunar soil barrel locking mechanism; the vacuum pumping system comprises a vacuum pump sets, a cooling water circulator, an air compressor, a vacuum pump set control cabinet and a corrugated pipe; the heating and refrigerating system comprises a heating device and a refrigerating device, and an internal cooling circulation part of the entire refrigerating device is arranged in a vacuum container; and the data acquisition and control system comprises a temperature module and a vacuum measuring module. The selenographic environment simulation device reasonably selects an environment simulation item aiming at the sensibility of thermal characteristics on selenographic environment factors in the drilling process, and simulates an effective selenographic test environment for the drilling test including high vacuum, high surface temperature, low temperature below the surface, ignores the environment simulation items which has almost not effect on test results, and is economical and effective.
Owner:BEIHANG UNIV
Microgravity vacuum environment oriented lunar surface in-situ resource 3D printing device
ActiveCN110039771ASolve supply problemsReduce manufacturing costManufacturing enclosuresManufacturing material handlingManufacturing cost reductionTransportation energy
The invention discloses a microgravity vacuum environment oriented lunar surface in-situ resource 3D printing device, and belongs to the manufacturing field of spatial additive manufacturing. The device is characterized in that the obtaining and screening of surface particular materials of lunar soil, lunar dust and the like are achieved by a lunar surface in-situ resource grabbing and screening unit; a 3D printing shaping unit is formed through ink jetting, 3D printing is conducted by using screened particular materials, and the device is suitable for lunar surface microgravity vacuum environment and the 3D printing manufacturing of large components of future lunar base. The device has the advantages that the lunar surface in-situ resources are taken as printing consuming materials, the materials do not need to be carried to the moon through spatial transportation, so that transportation energy consumption is greatly reduced, the manufacturing cost is reduced, and the device is particularly suitable for the production of components of lunar base building facilities, mechanical parts and the like.
Owner:HUAZHONG UNIV OF SCI & TECH
Low-gravity simulated lunar soil
InactiveCN102967498AImprove effectivenessTest status is stablePreparing sample for investigationJet aeroplaneSoil science
The invention belongs to the technical field of configuration of simulated lunar soil and particularly relates to low-gravity simulated lunar soil. The mechanical properties of the low-gravity simulated lunar soil can reach lunar soil in-situ mechanical properties as follows under the earth gravity of 1g: the pressure-bearing coefficient Kc is 0.14 N / cm<2> and kphi is 0.82 N / cm<3> and n is 1; the shearing coefficient C is 0.017 N / cm<2> and phi is 35 degrees and j is 1.8 cm; the physical density is 1 / 6 of the average density of the lunar soil, namely the density is 0.35 g / cc; and then, the simulated lunar soil is obtained by milling, sieving and grading grain diameters. The low-gravity simulated lunar soil can realize the full-simulation of the mechanical property of a lunar surface under the condition of ground gravity, and a manner of parabolic flight of an airplane does not need to be adopted to carry out a performance estimation test; and the test state is stable, the expenditure can be greatly saved and the low-gravity simulated lunar soil has the actual meaning of improving the effectiveness of a test check.
Owner:CHINA NORTH VEHICLE RES INST
Lunar soil dielectric constant inversion method for microwave band
InactiveCN105425215AImprove applicabilityImprove versatilityRadio wave reradiation/reflectionDielectricLunar soil
The invention discloses a lunar soil dielectric constant inversion method for the microwave band, comprising the following steps: obtaining the physical parameters of the surface of the moon, and using a lunar dust-N layers of lunar soil-lunar rock model to calculate the simulated brightness temperature of the surface of the moon; statistically fitting all measured brightness temperature data of integer latitudes such as 0 degree, + / -1 degree, + / -2 degrees... within the range of + / -0.1 degree in the whole moon, using the same curve to carry out fitting for the same latitude, and establishing brightness temperature daily change models of different latitudes; calculating the measured brightness temperature difference Tau1 and the simulated brightness temperature difference Tau2 according to the definition formula of space-time normalized bright temperature difference Tau; and screening and preprocessing the measured brightness temperature difference Tau1, and inverting the lunar soil dielectric constant by use of a multivariable constrained optimization approach. Compared with the existing lunar soil dielectric constant model which is only applicable to frequencies below 1GHZ, the lunar soil dielectric constant model put forward by the invention is applicable to the microwave band and takes into consideration the different influences of the content of minerals such as iron and titanium on the dielectric constant.
Owner:HUAZHONG UNIV OF SCI & TECH
Simulated lunar soil for engineering and its preparation process
InactiveCN102288472AGuaranteed preparationMeet the requirements of the preparation cycle (complete the preparation of 700 tons of simulated lunar soil within three months)Preparing sample for investigationLunar soilVolcano
The invention discloses a simulated lunar soil for engineering and a preparation process thereof. Cinerite in Jinchuan District, Huinan County, Jilin Province is selected as the raw material of the simulated lunar soil; the simulated lunar soil is prepared from nine types of cinerite of 3 meshes, 4 meshes, 8 meshes, 10 meshes, 18 meshes, 40 meshes, 60 meshes, 160 meshes and 200 meshes according to respective weight percentages. The preparation process of the simulated lunar soil comprises the steps of raw material selection, scoria air-drying, scoria coarse crushing and drying, scoria pulverization and finished product preparation. The simulated lunar soil prepared through the preparation process of the invention meets the requirements of the simulated lunar soil for engineering in both preparation cycle and control indexes.
Owner:JILIN UNIV
Method and system for detecting thickness of lunar soil and subsurface geological structure of moon
ActiveCN103630943AWorking frequency bandwidthReduce weightElectrical/magnetic thickness measurementsDetection using electromagnetic wavesRadar systemsGeomorphology
The invention discloses a method and system for detecting the thickness of lunar soil and the subsurface geological structure of the moon via an ultra-wide-band carrier-free pulse radar. A radar system includes two detection channels, wherein the first channel work at an HF / VHF waveband in a one-transmission-one-reception mode, and is used for detecting the geological structure of rocks at the subsurface of the moon; and the second channel works at a UHF waveband in a one-transmission-two-reception mode, and can accurately detect the thickness of the lunar soil layer. The ultra-wide-band carrier-free pulse radar is mounted on a moon rover and moves with the moon rover, and the two detection channels work alternatively, and respectively radiate and receive ultra-wide-band carrier-free pulses to complete detection for the thickness distribution of the lunar soil and the geologic structure of the rocks at the subsurface of the moon. Detected data is transmitted back to the earth, and the geologic structure of the rocks at the subsurface of the moon and the structure of the lunar soil layer are drawn on a display screen after processes as data filter and amplification.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI
Process to create simulated lunar agglutinate particles
ActiveUS8066796B1Precise compositionIncreased shear strengthBlade accessoriesMachines/enginesLunar soilMaterials science
A method of creating simulated agglutinate particles by applying a heat source sufficient to partially melt a raw material is provided. The raw material is preferably any lunar soil simulant, crushed mineral, mixture of crushed minerals, or similar material, and the heat source creates localized heating of the raw material.
Owner:SIERRA SPACE CORP
Core and rod replacing mechanism for multi-core and multi-rod deep lunar soil sampler
ActiveCN103837373AReduced Power RequirementsImprove securityWithdrawing sample devicesGratingLocking mechanism
The invention discloses a core and rod replacing mechanism for a multi-core and multi-rod deep lunar soil sampler and belongs to the field of space resource detection. The core and rod replacing mechanism comprises a drilling rod fixing component, a core-pulling pipe fixing and separating component and a driving component, wherein the drilling rod fixing component comprises a drilling rod disk, a drilling rod disk rotating shaft, a barrel-shaped drilling rod clamp, a drilling rod disk positioning grating and a drilling rod disk electromagnetic locking mechanism; the core-pulling pipe fixing and separating component comprises a core-pulling pipe disk, a core-pulling pipe disk rotating shaft, a core-pulling pipe disk electromagnetic locking mechanism, a sample table bracket, a core-pulling pipe disk positioning grating, a lander acting component and a sample table separating dragging plate; the driving component comprises a gear box bracket, a gear box shell, a drilling rod motion driving shaft, a spring, a transitional joint, a drilling rod disk driving shaft, a core-pulling pipe disk driving shaft, a core-pulling pipe disk driving gear group and a drilling rod disk driving gear group. The core and rod replacing mechanism has the advantages that multi-core and multi-rod sampling is realized, frequent large-scale sampling is achieved, rod and core replacement is precise and flexible, and only collected samples can be recycled to reduce the weight of a returning capsule.
Owner:BEIHANG UNIV
A structural design method of coarse-grained saline soil embankment based on uplift deformation control
ActiveCN109086511AScientific and reasonable designAvoid blindly determiningGeometric CADDesign optimisation/simulationPrillLunar soil
A structural design method of coarse-grained saline soil embankment based on uplift deformation control is proposed to scientifically and reasonably design the structure of high-speed railway or magnetic suspension coarse-grained saline soil embankment, which can meet the needs of practical engineering. The method comprises the following steps of: 1 determining the allowable uplift amount of the top surface of the embankment; 2 preliminary determination of embankment structure of coarse-grained saline soil; 3 determining the influence depth of saline heaving atmosphere of coarse-grained salinesoil embankment, calculating and determining the calculated thickness of coarse-grained saline soil uplift in embankment; 4 determining the temperature Ti 1 of the i-layer soil before cooling in winter and the lowest temperature Ti 2 appearing in the i-layer soil during cooling in winter; 5 determining the salt dilatancy index Csi of the i-layer soil, the salt swelling force sigma Ti, the initialvoid ratio e0i and the effective self-weight stress sigma y0i of the i-layer soil were determined when the temperature Ti 1 decreased to Ti 2; 6. calculating and determining the amount of embankmenttop surface uplift; 7. Performing judging, if yes, the embankment shall follow the steps 2, the structure of coarse-grained saline soil embankment being designed, If not, repeating steps 2 to 6, untilthe judging result is yes, to design a reasonable embankment for coarse-grained saline soil.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD
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