CN117627418A - Self-rigidifying inflatable living cabin for lunar surface construction - Google Patents

Abstract

The invention discloses a self-rigidifying inflatable living cabin for lunar surface construction, which comprises an inflatable structure and an overburden layer. The inflatable structure comprises a flexible skin layer and a rigidifying layer, wherein the flexible skin layer is used for preventing internal gas leakage of the inflatable structure during inflation and deployment and bearing internal air pressure of the inflatable structure during inflation and deployment; the stiffening layer is capable of switching between glassy and rubbery states; the rigidifying layer can play a supporting role when the inflatable structure leaks air after rigidifying (in a glassy state), so that the inflatable structure is prevented from collapsing; the covering layer is used for covering the inflatable structure after the inflatable structure is inflated and unfolded. The invention can meet different functional requirements in various scenes such as transportation, construction, service and the like, has the characteristics of light weight, high strength, easy folding, rigidification, shock resistance, radiation protection, easy maintenance and modularization, can move for many times and be repeatedly used, solves the problem of constructing a large-space residence cabin under the condition of lacking manpower on a lunar surface, and can be expanded into a residence for long-term continuous residence.

Description

Self-rigidifying inflatable living cabin for lunar surface construction

Technical Field

The invention relates to the technical field of lunar surface construction, in particular to a self-rigidifying inflatable living cabin for lunar surface construction.

Background

The moon base is a necessary measure for exploring, developing and utilizing moon resources, and is also an important content of the goddess four-stage project in China. The lunar environment is more harsh and limited than the extreme environment on earth. Therefore, when the construction problem under the extreme environment is researched, the lunar surface is taken as an application scene, technical support can be provided for future space exploration and underground construction, and innovative thought and a feasible solution are provided for the construction of other ground extreme environments (such as polar regions and plateaus). However, extreme environmental construction faces problems such as harsh environments, limited resources, difficult equipment transportation, and lack of manpower. Therefore, a key problem in lunar construction is how to effectively utilize the existing carrying conditions and scientific techniques, reduce the volume and mass of structural transportation, and construct a lunar base in a structural form and an automated process that are easy to construct. The structure needs to meet different functional requirements in various scenes such as transportation, construction, service and the like, and has the characteristics of light weight, high strength, shock resistance, radiation protection, easiness in maintenance, modularization and the like.

The lunar living accommodation is a key facility for providing living and working places for astronauts and scientists, and provides a foundation for deep research, exploration and development of the moon. The inflatable structure is one of the moon living accommodation design schemes with the best practical prospect at present by comprehensively considering the factors such as transportation, storage, construction, reliability and the like. However, the current inflatable structure can obtain certain rigidity within a limited time after being unfolded, the inflatable structure needs to rely on continuous inflation to have structural rigidity, and has high dependence on inflation and low safety, durability and repairability; in addition, the environment on the moon is severe, construction resources are extremely lacking, and for long-term sustainable moon living cabins, a scheme for constructing in combination with in-situ resources must be considered.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one purpose of the invention is to provide a self-rigidifying inflatable living cabin for lunar surface construction, which meets different functional requirements in various scenes such as transportation, construction, service and the like, has the characteristics of light weight, high strength, easy folding, rigidification, shock resistance, radiation protection, easy maintenance and modularization, can be moved for many times and reused, solves the problem of building a large-space living cabin under the condition of lack of manpower on the lunar surface, and can be expanded into a residence for long-term continuous living.

A self-rigidifying inflatable living pod for lunar surface construction according to an embodiment of the present invention includes:

the inflatable structure can be folded and inflated to be unfolded and comprises a flexible skin layer and a rigidizing layer, wherein the rigidizing layer is coated in the flexible skin layer; the flexible skin layer is used for preventing internal gas leakage of the inflatable structure during inflation and deployment and is used for bearing internal gas pressure of the inflatable structure during inflation and deployment; the rigidifying layer can be switched between a glassy state and a rubbery state, when the temperature of the rigidifying layer is below the switching temperature, the rigidifying layer is in a high-rigidity glassy state, and when the temperature of the rigidifying layer is above the switching temperature, the rigidifying layer enters a low-rigidity rubbery state from the high-rigidity glassy state; the rigidifying layer can play a supporting role when the inflatable structure leaks air after rigidification, so that the inflatable structure is prevented from collapsing, and the safety and repairability of the inflatable structure are greatly improved;

and the covering layer is used for covering the inflatable structure after the inflatable structure is inflated and unfolded.

The construction flow of the self-rigidifying inflatable living cabin for lunar surface construction according to the embodiment of the invention is as follows: firstly, inflating and expanding an inflatable structure, in detail, heating a rigidifying layer of the folded inflatable structure to be above a conversion temperature, so that the rigidifying layer enters a low-rigidity rubbery state from a high-rigidity glassy state, the whole skin of the inflatable structure is in a flexible state, and inflating the inflatable structure to enable the inflatable structure to be completely expanded; then rigidifying the rigidifying layer of the inflatable structure, in detail, naturally cooling the rigidifying layer of the fully-unfolded inflatable structure, so that the temperature of the rigidifying layer is below the conversion temperature, and the rigidifying layer enters a high-rigidity glass state from a low-rigidity rubber state, and rigidifies the inflatable structure; the periphery of the fully unfolded and rigidified inflatable structure is covered with soil, in detail, a construction robot is used for building a soil covering layer by means of the rigidified inflatable structure, the rigidified inflatable structure can bear the pressure applied by the soil covering layer, when the soil covering layer is not built, the soil covering layer does not form a self-supporting structure, so that the inflatable structure plays a role of bearing load and a template, and when the soil covering layer is built, a self-supporting pressed structure is formed; the earthing layer plays a role of a protective layer for the internal inflatable structure and is used for radiation protection, heat preservation, heat insulation, tiny star impact resistance and the like; and finally pressurizing the inside of the inflatable structure, and in detail, re-inflating gas into the inside of the inflatable structure for pressurizing and compensating to ensure that the air pressure in the inflatable structure reaches 1 atmosphere, thereby completing the construction of the lunar surface living accommodation, and the lunar surface living accommodation can be used for long-term continuous activities of human beings.

It should be noted that, because the rigidifying layer can be converted between the glass state and the rubber state, for the unfolded and rigidified inflatable structure, the rigidifying layer of the inflatable structure can be heated to above the conversion temperature, so that the rigidifying layer enters the low-rigidity rubbery state from the high-rigidity glass state, the unfolded inflatable structure is in a flexible state as a whole, then the inflatable structure is folded, and then the rigidifying layer of the folded inflatable structure is naturally cooled, so that the temperature of the rigidifying layer of the folded inflatable structure is below the conversion temperature, and the rigidifying layer of the folded inflatable structure enters the high-rigidity glass state from the low-rigidity rubber state, so that the rigidified layer of the folded inflatable structure can maintain a compact folded state, and the folded rigid inflatable structure is convenient to store and transport.

The self-stiffening inflatable living cabin for lunar surface construction provided by the embodiment of the invention has the following advantages: firstly, the inflatable structure is light and foldable, so that the requirements of volume and mass in the process of transporting the rocket from earth to moon can be met; secondly, the self-rigidifying inflatable living cabin is simple in construction process, comprises main steps of inflation expansion, rigidification, earthing, pressurization and the like, and the construction of the internal inflatable structure does not need additional site materials in consideration of participation of a construction robot and the design of an automatic construction process. Thirdly, in the self-rigidified inflatable living cabin which is built, the flexible cover layer of the rigidified inflatable living cabin has good air tightness and strength, can bear the internal air pressure of the inflatable structure, is in a high-rigidity glass state, can improve the bearing capacity, can still keep the shape of the inflatable structure when the structure leaks air, prevents collapse, has higher safety, durability and repairability, and the soil covering layer plays a role of protecting the internal inflatable structure, can play roles of preventing external radiation, preserving heat, resisting tiny meteoroid impact and the like, so that the built self-rigidified inflatable living cabin is safe and reliable, and provides an active space for life and scientific research of astronauts on moon; fourthly, the safety of the structure in the dynamic construction process is concerned in addition to the performance in the service static stage; the outer soil layer can bear load independently after construction is completed; in the construction process, the rigidified inflatable structure can play a role in supporting the external lunar soil components and the construction templates which are not formed into the structure; fifthly, the earth covering layer is built by using moon in-situ resource lunar loam, so that the utilization rate of moon in-situ resources is improved; and the method is applicable to lunar surface construction, is also applicable to other extreme environment construction projects lacking manpower, and has strong applicability. In a word, the self-rigidifying inflatable living cabin for lunar surface construction provided by the embodiment of the invention meets different functional requirements in various scenes such as transportation, construction, service and the like, has the characteristics of light weight, high strength, easiness in folding, rigidification, shock resistance, radiation protection, easiness in maintenance and modularization, can be moved for many times and reused, solves the problem of building a large-space living cabin under the condition of lack of manpower on the lunar surface, and can be expanded into a residence for long-term continuous living.

In some embodiments, the flexible skin layer comprises a sealing airbag layer and a reinforcing layer, wherein the sealing airbag layer, the stiffening layer and the reinforcing layer are sequentially arranged from inside to outside, the sealing airbag layer is used for preventing internal gas leakage of the inflatable structure when the inflatable structure is inflated and unfolded, the stiffening layer is used for converting between flexibility and rigidity so as to meet different requirements of the structure in transportation, construction and service stages, and the reinforcing layer is used for bearing internal gas pressure of the inflatable structure when the inflatable structure is inflated and unfolded.

In some embodiments, the sealed airbag layer is made of a single or multiple layers of film material.

In some embodiments, the reinforcing layer is made of a high strength fibrous textile material and is isotropic.

In some embodiments, the reinforcement layer is a multi-knit fibrous fabric or a multi-layered flat woven fabric laid at different angles.

In some embodiments, the rigidized layer includes a shape memory polymer member or a shape memory polymer composite member within or within which resistance heating wires are distributed.

In some embodiments, the rigidized layer is a rigidized face layer or a rigidized skeleton layer, wherein the rigidized skeleton layer is comprised of rigidized rods or comprised of rigidized nodes and composite rods.

In some embodiments, the rigidized layer is also for use as a semi-active vibration control device.

In some embodiments, the flexible skin layer further comprises a protective coating layer disposed on an outer side of the reinforcement layer, the protective coating layer for preventing aging and wear of the inflatable structure.

In some embodiments, the flexible skin layer further comprises a scratch resistant layer disposed on an interior side of the sealed airbag layer, the scratch resistant layer configured to protect the inflatable structure from mechanical damage during use.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of an overall structure of a self-rigidifying inflatable living room for lunar surface construction according to an embodiment of the present invention.

Fig. 2 is a schematic view of another overall structure of a self-rigidifying inflatable living room for lunar surface construction according to an embodiment of the present invention.

FIG. 3 is a schematic illustration of a skin structure of an inflatable structure according to an embodiment of the present invention.

FIG. 4 is a workflow diagram of the folding and unfolding cycle of an inflatable structure with the stiffening layer of an embodiment of the present invention transitioning between a glassy state and a rubbery state.

FIG. 5 is a schematic illustration of an earth-covering and pressurization process employing automated construction in accordance with an embodiment of the present invention.

FIG. 6 is a schematic illustration of the construction of a rigidized finish according to an embodiment of the present invention.

Fig. 7 is a schematic view of the construction of fig. 6 at another angle.

FIG. 8 is a schematic view of a rigidized carcass layer construction in accordance with an embodiment of the present invention.

FIG. 9 is a schematic illustration of the construction of another rigidized carcass layer in accordance with an embodiment of the present invention.

Reference numerals: self-stiffening inflatable living accommodation 1000; an inflatable structure 100; a flexible skin layer 101; a sealing airbag layer 1011; enhancement layer 1012; a protective coating 1013; a rigidized layer 102; rigidized finish 1021; stiffening the carcass layer 1022; filling resin 10221; rigidized lever 10222; a cover layer 200; the robot 300 is constructed.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

A self-rigidifying inflatable living room 1000 for lunar surface construction according to an embodiment of the present invention is described below with reference to fig. 1 and 9.

As shown in fig. 1 to 5, the self-rigidifying inflatable living room 1000 for lunar surface construction according to the embodiment of the present invention includes an inflatable structure 100 and an overburden 200. The inflatable structure 100 is foldable and inflatable and comprises a flexible skin layer 101 and a rigidifying layer 102, wherein the rigidifying layer 102 is coated in the flexible skin layer 101; the flexible skin layer 101 is for preventing leakage of internal gas of the inflatable structure 100 upon inflation deployment and for withstanding internal gas pressure of the inflatable structure 100 upon inflation deployment; the stiffening layer 102 is capable of switching between a glassy state and a rubbery state, the stiffening layer 102 being in a high stiffness glassy state when the temperature of the stiffening layer 102 is below the switching temperature, the stiffening layer 102 being in a low stiffness rubbery state from the high stiffness glassy state when the temperature of the stiffening layer 102 is above the switching temperature; the rigidifying layer 102 can play a supporting role when the inflatable structure 100 leaks air after rigidification, so that the inflatable structure 100 is prevented from collapsing, and the safety and repairability of the inflatable structure 100 are greatly improved; the cover layer 200 is used to cover the inflatable structure 100 after the inflatable structure 100 is inflated and deployed.

Specifically, the inflatable structure 100 can be folded and inflated for unfolding, and when the inflatable structure 100 is in a folded state, the inflatable structure is small in size, light in weight and convenient to transport, and can meet the requirements of the volume and the mass in the transportation process from earth to moon; the inflatable structure 100 is transported from the earth to the moon in a folded state, and after the inflatable structure reaches the moon, the inflatable structure 100 can be inflated and unfolded at a proper position on the lunar surface, so that the operation is simple, a sealable space can be formed after the inflatable structure 100 is inflated and unfolded, the inflatable structure 100 is used as a living cabin, the inside of the inflatable structure 100 is provided with an air pressure and temperature control system, the air pressure difference between the atmospheric pressure inside the inflatable structure 100 and the external vacuum is considered, the position and load requirements of a life support system, an energy system and the like are reserved, an active space is provided for the life and scientific research of astronauts on the moon, and a suitable living environment is provided for people; compared with a rigid living cabin, the inflatable structure 100 is lighter in weight and foldable, and the volume-to-mass ratio of the living cabin is greatly improved. The inflatable structure 100 may be spherical, hemispherical, cylindrical, etc., the shape of the inflatable structure 100 may be selected according to practical situations, the inflatable structure 100 is further provided with a hatch as an entrance, the hatch may be used for connecting other building modules and passages, and the construction process is mainly completed by the movable construction robot 300, which may save manpower. It should be noted that, the bottom of the construction robot 300 is provided with a base capable of moving on the lunar surface, and the construction robot adopts a form of one machine with multiple purposes or multiple machines in cooperation. When the machine is multipurpose, the mechanical arm of the construction robot 300 is configured with different end effectors to realize different functions of digging, carrying, loading, constructing, and the like. Deep design is required in combination with the direction of the relevant build robot 300. The construction robot 300 in fig. 1 and 2 is only illustrative, and the present invention does not relate to the design of the construction robot 300.

The inflatable structure 100 comprises a flexible skin layer 101 and a rigidized layer 102, wherein the rigidized layer 102 is coated in the flexible skin layer 101; the flexible skin layer 101 is used for preventing the internal gas of the inflatable structure 100 from leaking during inflation and deployment and for bearing the internal gas pressure of the inflatable structure 100 during inflation and deployment, so that the safety of the inflatable structure 100 is ensured; the stiffening layer 102 is capable of switching between a glassy state and a rubbery state, the stiffening layer 102 being in a high stiffness glassy state when the temperature of the stiffening layer 102 is below the switching temperature, the stiffening layer 102 being in a low stiffness rubbery state from the high stiffness glassy state when the temperature of the stiffening layer 102 is above the switching temperature. That is, the rigidifying layer 102 can be converted between the glassy state and the rubbery state by adjusting the temperature, and the rigidifying layer 102 can play a supporting role when the inflatable structure 100 leaks after rigidifying (glassy state), so as to prevent the inflatable structure 100 from collapsing, and greatly improve the safety and repairability of the inflatable structure 100. This reversible stiffening method facilitates a variety of repeatedly operable floor tests such as inflatable deployment tests, stiffening tests, compression tests, air tightness tests, construction process demonstrations, and the like. It should be explained that the rigidity of the glassy rigidized layer 102 is more than thousand times that of the rubbery rigidized layer 102, and when the inflatable structure 100 is leaked or damaged, the glassy rigidized layer 102 can bear a certain pressure, so as to maintain the stability of the inflatable structure 100, thereby greatly improving the safety of the inflatable structure 100. In summary, the inflatable structure 100 is lightweight, easily unfolded, flexible, foldable, high in load-bearing capacity, and capable of repairing air leakage, and meets various scene requirements for transportation, construction, and service.

The cover layer 200 is used to cover the inflatable structure 100 after the inflatable structure 100 is inflated and deployed. The soil cover layer 200 is manufactured on the moon using moon in-situ resources, one is the accumulated and compacted lunar soil, and the other is the building material treated by the curing and forming technology, such as the lunar soil brick formed by sintering or the lunar soil bag member formed by filling. This lunar soil layer is built mainly with lunar in situ resources, which is a factor that must be considered for sustainable long-term construction. However, lunar soil layer itself cannot withstand a great tensile force, and also cannot maintain air tightness under a difference between the air pressure of 1 atmosphere inside the air-filled structure 100 and the air pressure of external vacuum. Therefore, lunar soil cannot be independently used as a space for human activities, but is more suitable for structures, protection walls and the like. Because the gravity on the moon is only 1/6 of that of the earth, and the lunar shock is small in scale, the lunar soil component can bear pressure by itself by constructing a corresponding structural form, a self-supporting pressure structure such as an arch and shell structure can be formed, and the lunar soil component can be self-supported, so that the damage to the internal inflatable structure 100 is avoided. That is, the overburden 200 is constructed using the in-situ resource of the moon, improving the utilization rate of the in-situ resource of the moon; and the built-up soil covering layer 200 plays a role of a protective layer in the internal inflatable structure 100, is used for preventing external radiation, heat preservation and insulation, resisting tiny fluid impact and the like, and the built-up soil covering layer 200 can also form a self-supporting pressed structure, such as an arch and shell structure, can be self-supported, and avoids damage to the internal inflatable structure 100. It should be explained that the lunar soil layer thickness of the overburden 200 may be several meters according to design requirements. The construction work of the overburden 200 is mostly repetitive tasks, and is mainly performed by the construction robot 300.

As shown in fig. 1 to 5, the construction process of the self-rigidifying inflatable living room 1000 for lunar surface construction according to the embodiment of the present invention is as follows: firstly, the inflatable structure 100 is inflated and unfolded, in detail, the rigidifying layer 102 of the folded inflatable structure 100 is heated to be above the conversion temperature, so that the rigidifying layer 102 enters a low-rigidity rubbery state from a high-rigidity glassy state, the whole inflatable structure 100 is in a flexible state, and the inflatable structure 100 is inflated into the inflatable structure 100, so that the inflatable structure 100 is completely unfolded; then rigidifying the rigidifying layer 102 of the inflatable structure 100, in detail, naturally cooling the rigidifying layer 102 of the fully-unfolded inflatable structure 100, so that the temperature of the rigidifying layer 102 is below the transition temperature, and the rigidifying layer 102 enters a high-rigidity glassy state from a low-rigidity rubbery state, thereby completing rigidification of the inflatable structure 100 and improving the structural bearing capacity; the outer periphery of the fully-unfolded and rigidified inflatable structure 100 is covered with soil, in detail, the construction robot 300 is used for building the soil covering layer 200 by depending on the rigidified inflatable structure 100, the rigidified inflatable structure 100 can bear the pressure exerted by the soil covering layer 200, when the soil covering layer 200 is not built, the soil covering layer 200 does not form a self-supporting structure, so that the inflatable structure 100 plays a role of bearing load and a template, and when the soil covering layer 200 is built, a self-supporting pressed structure is formed; the earth covering layer 200 plays a role of a protective layer for the internal inflatable structure 100, and is used for radiation protection, heat preservation, heat insulation, tiny planet impact resistance and the like; and finally pressurizing the inside of the inflatable structure 100, and in detail, re-inflating the inside of the inflatable structure 100 with gas for pressurizing compensation to ensure that the air pressure in the inflatable structure 100 reaches 1 atmosphere, thereby completing the construction of the lunar surface living accommodation, and the lunar surface living accommodation can be used for long-term continuous activities of human beings.

It should be noted that, since the rigidifying layer 102 can be converted between a glassy state and a rubbery state, for the expanded and rigidified inflatable structure 100, the rigidifying layer 102 of the inflatable structure 100 may be heated to a temperature above the conversion temperature, so that the rigidifying layer 102 enters a rubbery state with low rigidity from a glassy state with high rigidity, the expanded inflatable structure 100 is in a flexible state as a whole, then the inflatable structure 100 is folded, and then the rigidifying layer 102 of the folded inflatable structure 100 is naturally cooled, so that the temperature of the rigidifying layer 102 of the folded inflatable structure 100 is below the conversion temperature, thereby the rigidifying layer 102 enters a glassy state with high rigidity from a rubbery state with low rigidity, and the rigidifying of the rigidifying layer 102 of the folded inflatable structure 100 is completed, so that a compact folded state is maintained, and storage and transportation are facilitated.

The self-stiffening inflatable living pod 1000 for lunar surface construction of the embodiment of the present invention has the following advantages: firstly, the inflatable structure 100 is light and foldable, so that the requirements of volume and mass in the process of transporting the rocket from earth to moon can be met; secondly, the construction process of the self-rigidifying inflatable living cabin 1000 is simple, and comprises the main steps of inflation and deployment, rigidification, earthing, pressurization and the like, and the construction of the internal inflatable structure 100 does not need additional site materials in consideration of the participation of the construction robot 300 and the design of the automated construction process. Thirdly, in the self-rigidified inflatable living cabin 1000 which is built, the flexible skin layer 101 of the rigidified inflatable structure 100 has good air tightness and strength, can bear the internal air pressure of the inflatable structure 100, the rigidified layer 102 is in a high-rigidity glass state, the structural bearing capacity is improved, the shape of the inflatable structure 100 can be kept even after the structure leaks air, collapse is prevented, the safety, durability and repairability are high, the earthing layer 200 plays a role of protecting the internal inflatable structure 100, and plays roles of preventing external radiation, heat preservation, heat insulation, tiny meteoroid impact resistance and the like, so that the built self-rigidified inflatable living cabin 1000 is safe and reliable, and an activity space is provided for life and scientific research of astronauts on the moon; fourthly, the safety of the structure in the dynamic construction process is concerned in addition to the performance in the service static stage; the outer covering layer 200 can bear load independently after construction is completed; during construction, the rigidified inflatable structure 100 may function to support the unstructured outer lunar soil components and construction templates; fifthly, the overburden layer 200 is built by using the moon in-situ resource, so that the utilization rate of the moon in-situ resource is improved; and the method is applicable to lunar surface construction, is also applicable to other extreme environment construction projects lacking manpower, and has strong applicability. In a word, the self-rigidifying inflatable living cabin 1000 for lunar surface construction provided by the embodiment of the invention meets different functional requirements in various scenes such as transportation, construction, service and the like, has the characteristics of light weight, high strength, shock resistance, radiation protection, easiness in maintenance and modularization, solves the problem of building a large-space living cabin under the condition of lack of manpower on the lunar surface, and can be expanded into a residence field for long-term continuous living.

In some embodiments, the flexible skin layer 101 includes a sealing airbag layer 1011 and a reinforcing layer 1012, where the sealing airbag layer 1011, the stiffening layer 102 and the reinforcing layer 1012 are sequentially disposed from inside to outside, and the sealing airbag layer 1011 is used to prevent internal gas leakage of the inflatable structure 100 during inflation and deployment, and the stiffening layer 102 is used to convert between flexibility and rigidity to meet different requirements of the structure during transportation, construction and service, and the reinforcing layer 1012 is used to bear internal gas pressure of the inflatable structure 100 during inflation and deployment, and is a main structural layer of the inflatable structure 100, so as to ensure safety of the inflatable structure 100. It should be explained that the layers of the flexible skin layer 101 are bonded by using an adhesive, and specific functional layers can be increased or decreased according to the use conditions and the environmental requirements.

In some embodiments, the sealed airbag layer 1011 is made of a single layer or multiple layers of film material.

Specifically, the sealed airbag layer 1011 is made of a single layer or a plurality of layers of film materials having a thickness of 1 to 9 mm, and can be used to prevent gas leakage from the self-stiffening inflatable living accommodation 1000. Wherein, the film material can be polyimide grease, polyethylene, polyamide and the like.

In some embodiments, the reinforcing layer 1012 is made of a high strength fibrous textile material and is isotropic.

Specifically, in the inflatable structure 100, the reinforcement layer 1012 is a main structural layer for bearing the air pressure inside the rigidized inflatable living room 1000, and in order to meet the requirements of light weight, high strength, and flexibility, a high-strength fiber fabric, such as aramid fiber and polyarylate fiber, is generally selected. The high-strength fiber material has the advantages of high specific strength, cutting resistance, wear resistance, high temperature resistance and the like, and is widely applied to space structures; the isotropy ensures that the strength of the reinforcing layer 1012 is the same, ensures that all positions of the reinforcing layer 1012 can bear internal air pressure, has no weak points and has high safety.

In some embodiments, the reinforcement layer 1012 employs a multi-knit fibrous fabric or a multi-layered flat woven fabric laid at different angles.

Specifically, the isotropy of the reinforcing layer 1012 can be ensured by adopting the multidirectional woven fiber fabric or the multi-layer flat woven fabric laid at different angles, the strength of the reinforcing layer 1012 is ensured to be the same, all positions of the reinforcing layer 1012 can bear internal air pressure, weak points are avoided, and the safety is high. Wherein, the multi-layer fiber fabric can be combined together through flexible resin, coating materials or flexible adhesive, wherein, special coating materials such as high-phenyl silicone rubber, fluororubber and the like can be used to meet the requirements of ultralow temperature, large temperature difference, radiation aging resistance and the like of the lunar surface, and the durability of the fabric can be greatly enhanced.

In some embodiments, rigidized layer 102 includes a shape memory polymer member or a shape memory polymer composite member with resistance heating wires distributed within the shape memory polymer member or within the shape memory polymer composite member.

Specifically, the shape memory polymer member or shape memory polymer composite member may change its own shape according to a change in temperature, when the shape memory polymer member or shape memory polymer composite member is below the transition temperature, the shape memory polymer member or shape memory polymer composite member is in a high-stiffness glassy state, the elastic modulus is about 1GPa, when the temperature is raised above the transition temperature, the shape memory polymer member or shape memory polymer composite member enters a low-stiffness rubbery state, during which the stiffness can change by up to thousands of times, the shape memory polymer member or shape memory polymer composite member also has a shape memory function, capable of recovering most of the deformation, and thus releasing the stored energy when the stiffening layer 102 is transformed, reducing the residual stress and strain, thereby facilitating the de-wrinkling design of the flexible skin layer 101. Resistance heating wires are distributed in the shape memory polymer member or the shape memory polymer composite member, the shape of the rigidized layer 102 can be changed through the resistance heating wires, other heating equipment is not needed, the integration level is high, and the operation is simple.

In some embodiments, rigidized layer 102 is a rigidized face layer 1021 or a rigidized skeletal layer 1022, wherein rigidized skeletal layer 1022 is comprised of rigidized rods 10222 or of rigidized node-connected composite rods.

Specifically, in the case of the inflated structure 100 in which the structure of the overburden 200 is damaged or in the case of air leakage, the rigidifying layer 102 needs to have sufficient capability to support the dead weight and the load of a part of the overburden 200, in order to achieve this, the rigidifying layer 102 needs to form a reasonable supporting structure, and the following three different forms of supporting structures formed by the rigidifying layer 102 are given: first, a rigidized surface layer 1021 formed by the rigidized layer 102 is shown in fig. 6 and 7; secondly, a frame consisting of rigidized bars 10222; as shown in fig. 8 and 9, the rigidized rod 10222 may be a cylinder or a cuboid, and may be selected according to practical situations; the void between rigidized bars 10222 and flexible skin 101 may be filled with a filling resin 10221, securing rigidized bars 10222 to the 1012 reinforcement. Wherein the filler resin 10221 may be a shape memory polymer resin. Thirdly, the frame is formed by the rigidized nodes and the composite rod pieces. In summary, the rigidized surface layer 1021 or the rigidized skeleton layer 1022 can support the weight of the self-rigidized inflatable living room 1000 and the soil covering layer 200 when the self-rigidized inflatable living room 1000 encounters a special condition, prevent the self-rigidized inflatable living room 1000 from collapsing, increase the risk resistance of the self-rigidized inflatable living room 1000, and have higher safety.

In some embodiments, stiffening layer 102 is also used as a semi-active vibration control device.

Specifically, the shape memory polymer of the rigidifying layer 102 is activated to a high damping viscoelastic region, that is, the temperature of the shape memory polymer is adjusted to be close to the glass transition temperature, so that the damping capacity of the rigidifying layer 102 can be increased, the rigidifying layer 102 is helpful to resist impact dynamic load, moon shock and other dynamic excitation, the risk resistance of the self-rigidifying inflatable living cabin 1000 is enhanced, and the safety is higher.

In some embodiments, the flexible skin layer 101 further includes a protective coating 1013, the protective coating 1013 being provided on an outer side of the reinforcement layer 1012, the protective coating 1013 being configured to prevent the inflatable structure 100 from aging and wear.

Specifically, as shown in fig. 3, the protective coating 1013 is located on the outermost side of the inflatable structure 100, has a certain thickness, and can protect the inflatable structure 100, and can also improve the tightness of the inflatable structure 100, and prevent the inflatable structure 100 from puncturing and leaking, thereby improving the safety and stability of the inflatable structure 100.

In some embodiments, the flexible skin layer 101 further includes a scratch-resistant layer disposed on an inner side of the sealed airbag layer 1011, the scratch-resistant layer being configured to protect the inflatable structure 100 from mechanical damage during use, thereby ensuring safety and stability of the inflatable structure 100. Wherein the scratch-resistant layer is generally made of aramid felt and other materials.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A self-rigidifying inflatable living pod for lunar surface construction, comprising:

the inflatable structure can be folded and inflated to be unfolded and comprises a flexible skin layer and a rigidizing layer, wherein the rigidizing layer is coated in the flexible skin layer; the flexible skin layer is used for preventing internal gas leakage of the inflatable structure during inflation and deployment and is used for bearing internal gas pressure of the inflatable structure during inflation and deployment; the rigidifying layer can be switched between a glassy state and a rubbery state, when the temperature of the rigidifying layer is below the switching temperature, the rigidifying layer is in a high-rigidity glassy state, and when the temperature of the rigidifying layer is above the switching temperature, the rigidifying layer enters a low-rigidity rubbery state from the high-rigidity glassy state; the rigidifying layer can play a supporting role when the inflatable structure leaks air after rigidification, so that the inflatable structure is prevented from collapsing, and the safety and repairability of the inflatable structure are greatly improved;

and the covering layer is used for covering the inflatable structure after the inflatable structure is inflated and unfolded.

2. The self-rigidifying inflatable living pod for lunar surface construction of claim 1, wherein the flexible skin layer comprises a sealing airbag layer and a reinforcing layer, the sealing airbag layer, the rigidifying layer and the reinforcing layer being sequentially disposed from inside to outside, wherein the sealing airbag layer is used for preventing internal gas leakage of the inflatable structure when inflated and deployed, the rigidifying layer is used for transforming between flexibility and rigidity to meet different requirements of transportation, construction and service stage structures, and the reinforcing layer is used for bearing internal gas pressure of the inflatable structure when inflated and deployed.

3. The self-rigidifying inflatable living pod for lunar surface construction according to claim 2, wherein the sealed airbag layer is made of a single or multiple layers of film material.

4. The self-rigidifying inflatable living pod for lunar surface construction according to claim 2, wherein the reinforcing layer is made of a high strength fiber fabric material and is isotropic.

5. The self-rigidifying inflatable living pod for lunar surface construction according to claim 4, wherein the reinforcement layer is a multi-directional woven fabric or a multi-layered flat woven fabric laid at different angles.

6. The self-rigidifying inflatable living pod for lunar surface construction according to claim 2, wherein the rigidifying layer comprises a shape memory polymer member or a shape memory polymer composite member with resistance heating wires distributed therein.

7. The self-rigidifying inflatable living pod for lunar surface construction according to claim 2, wherein the rigidifying layer is a rigidifying surface layer or a rigidifying framework layer, wherein the rigidifying framework layer is composed of rigidifying rods or composed of rigidifying nodes and composite rods.

8. The self-rigidifying inflatable living pod for lunar surface construction of claim 2, wherein the rigidifying layer is further configured to be used as a semi-active vibration control device.

9. The self-rigidifying inflatable living pod for lunar surface construction according to any of claims 2-8, wherein the flexible skin layer further comprises a protective coating layer disposed on the outer side of the reinforcing layer, the protective coating layer being for preventing aging and wear of the inflatable structure.

10. The self-rigidifying inflatable living accommodation for lunar surface construction as claimed in any one of claims 2-8, wherein the flexible skin layer further comprises a scratch-resistant layer, which is layered on the inner side of the sealed airbag layer, for protecting the inflatable structure from mechanical damage during use.