CN112977898B - Low gravity environment simulation facility for foundation periodic inclined track - Google Patents
Low gravity environment simulation facility for foundation periodic inclined track Download PDFInfo
- Publication number
- CN112977898B CN112977898B CN202110333490.7A CN202110333490A CN112977898B CN 112977898 B CN112977898 B CN 112977898B CN 202110333490 A CN202110333490 A CN 202110333490A CN 112977898 B CN112977898 B CN 112977898B
- Authority
- CN
- China
- Prior art keywords
- gravity
- simulator
- low
- simulation
- environment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a foundation periodic inclined orbit low-gravity environment simulation facility, which comprises a simulator, a low-gravity experiment cabin, a simulation platform and a control platform, wherein the simulator is used for simulating a low-gravity experiment cabin arranged on the surface of a Mars or the surface of a moon; the running rail is used for enabling the simulator to slide and comprises two inclined planes and an inner arc section, wherein the upper parts of the two inclined planes are outwards, and the bottoms of the two inclined planes are inwards and are connected with the inner arc section in a tangent mode. The invention can perform long-time periodic simulation on low gravity such as moon and Mars, is used for developing long-time low gravity (including moon gravity, mars gravity and the like) scientific experiments and environment simulation experiments of foundations, meets the requirements of leading edge scientific exploration in the fields of microgravity science, space life science and the like, meets the requirements of research and development and test of deep space detectors in China under the conditions of interplanetary space (multi-gravity environment) and moon and Mars detection (about 1g/6 and 1g/3 gravity environment), and provides key experiments and test platform support for national deep space detection major engineering.
Description
Technical Field
The invention relates to the field of space environment simulation, in particular to a low-gravity environment simulation facility for realizing a periodic inclined orbit of a foundation by inclined plane sliding.
Background
With the rapid development of the aerospace technology in China, the urgent demands are put forward for various long-term scientific experiments and space application technology verification experiments of foundations, such as manned aerospace flight and space station construction of a near-earth orbit, basic realization of lunar exploration engineering and gradual development of other deep space exploration projects such as sparks. If the aerospace science and technology group builds an 'extraterrestrial celestial body landing comprehensive test field' in Huailai county of Hebei province, a large-scale Mars gravity simulation facility with the height of 80 meters is built, and the aircraft Mars landing process is simulated by hanging a simulator rope.
The basic principle of the rope hanging structure for simulating Mars gravity is that the combined pulling force of the rope is utilized to directly counteract partial gravity action in the earth gravity direction, so that the simulator takes the acceleration a (a=g 0 +g Mars About 6.09m/s 2 ) Falls vertically and forms a size equal to 3.72m/s in a simulator 2 Residual acceleration (g) 0 -a＝9.81-6.09＝3.72m/s 2 ) Simulating gravity acceleration g of Mars surface Mars (3.72m/s 2 ) As shown in FIG. 1, a is a simulator stress analysis chart, and b is a simulator residual acceleration vector.
Although this approach can achieve the simulation effect, the use of a tethered pull simulator requires a steady pull and a large power, and also brings control and disturbance problems, thereby causing energy consumption and low gravity level noise fluctuations. Furthermore, such devices can only perform a spark gravity simulation during descent, the ascent being entirely overweight.
Disclosure of Invention
The invention aims to provide a method for realizing periodic low-gravity environment simulation of a foundation by inclined plane sliding.
In particular, the invention provides a foundation periodic inclined orbit low gravity environment simulation facility, which comprises,
the simulator is used for simulating a low-gravity experimental cabin arranged on the surface of a Mars or the surface of a moon;
the running rail is used for enabling the simulator to slide and comprises two inclined planes and an inner arc section, wherein the upper parts of the two inclined planes are outwards, and the bottoms of the two inclined planes are inwards and are connected with the inner arc section in a tangent mode.
The invention can perform long-time periodic simulation on low gravity such as moon and Mars, is used for developing long-time low gravity (including moon gravity, mars gravity and the like) scientific experiments and environment simulation experiments of foundations, meets the requirements of leading edge scientific exploration in the fields of microgravity science, space life science and the like, meets the requirements of research and development and test of deep space detectors in China under the conditions of interplanetary space (multi-gravity environment) and moon and Mars detection (about 1g/6 and 1g/3 gravity environment), and provides key experiments and test platform support for national deep space detection major engineering.
Drawings
FIG. 1 is a schematic diagram of a Mars gravity simulation of a prior art tethered structure, where a is a simulator force analysis diagram and b is a simulator residual acceleration vector;
FIG. 2 is a schematic diagram of a spark gravity simulation of an inclined plane structure according to an embodiment of the present invention, wherein a is a simulator stress analysis diagram, and b is a simulator residual acceleration vector;
fig. 3 is a schematic structural diagram of a low gravity simulation facility according to an embodiment of the present invention, where a is a relationship between a residual acceleration vector and an inclined plane angle, b is a relationship between gravity acceleration of moon, mars and earth, and c is a schematic diagram of a sliding state of a simulator on a gravity simulation track.
Detailed Description
Specific structures and implementation procedures of the present solution are described in detail below through specific embodiments and drawings.
As shown in fig. 2 and 3, in one embodiment of the present invention, a foundation periodic inclined track low gravity environment simulation facility is disclosed, comprising a simulator 1 and a running track 2.
The simulator 1 is used for simulating a planet surface experiment compartment, such as a detector, a scientific investigation station or a base positioned on the planet surface.
The running rail 2 is used for providing a ramp for sliding the simulator 1, and comprises two inclined planes (or rails) 21 which are oppositely arranged for simulating different gravities, wherein the tops of the two inclined planes 21 are inclined outwards, and the bottoms of the two inclined planes are connected with an inner arc section 22 which is in seamless transition with the inclined planes 21. The simulation of different gravitational environments refers to the simulation of the gravitational environment of the moon by the angle of the inclined slope 21, so that the residual acceleration (vertical track plane) of the simulator 1 is the same as the gravitational acceleration of the environment to be simulated, for example, the simulation of the gravitational environment of the moon requires that the residual acceleration of the simulator 1 in the vertical direction on the inclined slope 21 is the same as the gravitational environment of the moon, and in the same way, the simulation of a spark requires that the residual acceleration of the simulator 1 in the vertical direction on the inclined slope 21 is the same as the gravitational environment on the spark.
The simulator 1 moves along the inclined surface 21, the component of gravity on the inclined surface 21 provides inertial acceleration (free sliding process) or inertial deceleration (inertial sliding process) of the simulator 1 in the direction of the inclined surface 21, and the gravity acceleration g 0 The vector difference with the inertial acceleration a is equal to the gravity acceleration g of the gravity environment to be simulated (such as a Mars surface) Mars The direction is perpendicular to the inclined plane. In fig. 2, a is a stress analysis chart of the simulator, and b is a residual acceleration vector of the simulator.
As shown in fig. 3, wherein: a is the relation between the residual acceleration vector and the inclined plane angle, b is the gravity acceleration relation of moon, mars and earth, and c is a schematic diagram of the sliding state of the simulator on the gravity simulation orbit. Because the scheme adopts a U shape similar to a flaring shape, when the simulator 1 slides downwards from the inclined plane 21 at one side, potential energy is converted into kinetic energy, the kinetic energy is accelerated to move to the bottom of the inner arc section 22, and the speed reaches the maximum value; the motion energy is then converted into potential energy and the speed becomes zero at the highest point, from the bottom of the inner arc segment, and then the motion continues to slow down and move upwards towards the inclined slope 21 on the other side. The simulator 1 reciprocates between the two inclined planes 21, and the residual acceleration always maintains the acceleration value of the gravity environment to be simulated and maintains the direction unchanged during the free sliding process when the simulator slides on the inertia of the single inclined plane part, so that the residual acceleration vector formed by the simulator 1 during the primary inertia sliding and the free sliding process is maintained unchanged, namely the simulator 1 realizes uninterrupted turning back, namely the simulation time of the gravity of the environment surface is 2 times that of the free sliding process.
The inner arc-shaped section 22 is an excessive section of the two inclined planes 21, the radiuses of the two inclined planes 21 can be different, the inner arc-shaped section 22 is in an overweight process, the radius of the inner arc-shaped section 22 is small, the time for twice low gravity excessive is short, but overload is large; the radius of the inner arcuate segment 22 is large, the twice low gravity overage time is long, but the overload is small. The length and angle of the inner arc-shaped section 22 are related to the radius of the inner arc-shaped section 22 and the angle of the track, and the design needs to ensure that two sides of the inner arc-shaped section 22 are tangent to the two inclined planes 21 respectively.
The length of the inclined plane 21 can be determined according to the low gravity time required by the simulation experiment, and the longer the inclined plane 21 is, the longer the low gravity time obtained by the simulator 1 is, and the shorter the otherwise is.
In addition, during experimental simulation, the influence of the external environment on the sliding of the simulator 1, such as the friction force between the simulator 1 and the inclined planes 21, the resistance of air and the like, needs to be considered, and when external influence factors exist, the simulator 1 is released from the high position of the track, and then gradually stops after being reciprocated on the two inclined planes 21 for several times, so that the simulation effect is influenced. The influence of the environment of the experimental site on the movement of the simulator 1 can be eliminated by means of a drag reduction and power compensation device so that the simulator 1 can realize uninterrupted periodic reciprocating movement between the two inclined planes 21 after one release.
The specific compensation mode of the drag reduction and power compensation equipment can comprise a mode of vacuumizing the whole experimental place; or the simulator 1 moves in a friction-free suspension mode, wherein the suspension can be a magnetic suspension or an air suspension type movement mode; it is also possible to install a corresponding power compensation mode on the simulator 1, which can offset the resistance in the moving process, such as using the engine to provide the power corresponding to offset the friction.
To facilitate movement of the simulator 1 on the inclined ramp 21, the simulator 1 may be cooperatively moved on the inclined ramp 21 by means of rails or levitation.
Specifically, the gravity simulation track in the present embodiment makes the vertical residual acceleration of the inclined plane generated by the simulator 1 on the inclined plane 21 coincide with the gravitational acceleration of the Mars surface; i.e. the inclined angle of the inclined ramp 21 is 67.7 ° outwards, the simulator 1 is moved only in the direction of the inclined ramp 21 by the support and restraint of the inclined ramp 21 to form an inertial acceleration a (a=g 0 -g Mars ) Thereby forming a vertical slope with a size equal to 3.72m/s 2 Realizes the gravity acceleration g of the simulated Mars surface Mars (3.72m/s 2 )。
And through the transition of the arc-shaped section 22 in the bottom, the periodic operation of the simulator 12 between the two inclined planes 21 can be realized, and in an ideal state, the kinetic energy and potential energy are periodically converted in the motion process of the simulator 1, and after the simulator is released from a high place for the first time, power is not needed to be provided in the operation process.
The implementation mode can perform long-time periodic simulation on low gravity such as moon and Mars, is used for developing long-time low gravity (including moon gravity, mars gravity and the like) scientific experiments and environment simulation tests of foundations, meets the requirements of leading edge scientific exploration in the fields of microgravity science, space life science and the like, meets the requirements of research and development and test of deep space detectors in China under the conditions of interplanetary space (multi-gravity environment), moon and Mars detection (about 1g/6 and 1g/3 gravity environment), and provides key experiments and test platform support for national deep space detection major engineering.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (6)
1. A low gravity environment simulation facility for a periodically inclined orbit of a foundation is characterized by comprising,
the simulator is used for simulating a low-gravity experimental cabin arranged on the surface of a Mars or the surface of a moon;
the running rail is used for the simulator to slide and comprises two inclined planes and an inner arc section, the upper parts of the two inclined planes are outwards, the bottoms of the two inclined planes are inwards and are connected with the inner arc section in a tangent way,
the magnitude obtained by subtracting the inertial acceleration vector of the simulator in the process of the inertial ascending and free descending movement of the inclined plane from the local gravity acceleration vector is the residual acceleration, the residual acceleration is always equal to the gravity acceleration value of the environment to be simulated,
the simulator always maintains the residual acceleration vertical to the inclined plane in the process of inertial upward and free downward sliding movement on the inclined plane, namely the gravity acceleration of the environment to be simulated, the size and the direction of the gravity acceleration are unchanged,
the inclination angle of the inclined plane corresponds to different gravity level environments to be simulated.
2. The foundation periodic inclined orbit low gravity environment simulation facility according to claim 1, wherein,
the single-side length of the inclined plane is determined according to the low gravity time required by simulation, the continuous low gravity simulation time is 2 times of the single-side free sliding time, and the longer the inclined plane is, the longer the obtained low gravity simulation time is, and conversely, the shorter the obtained low gravity simulation time is.
3. The foundation periodic inclined orbit low gravity environment simulation facility according to claim 1, wherein,
the device also comprises a drag reduction and power compensation device, wherein the drag reduction and power compensation device eliminates the influence of the environment of an experimental place on the movement of the simulator, so that the simulator can realize periodic reciprocating motion between two inclined planes after being initially released from the height of the inclined planes.
4. The foundation periodic inclined orbit low gravity environment simulation facility according to claim 3,
the compensation mode of the drag reduction and power compensation equipment comprises a vacuumizing mode for reducing atmospheric resistance, a friction-free suspension mode or a direct power compensation mode for counteracting resistance in the moving process of the simulator.
5. The foundation periodic inclined orbit low gravity environment simulation facility according to claim 1, wherein,
the simulator moves in an overweight process in the inner arc section, so that low gravity transition of the simulator between the two inclined planes is realized, the larger the radius of the inner arc section is, the smaller the overload is, and otherwise, the larger the overload is.
6. The foundation periodic inclined orbit low gravity environment simulation facility according to claim 1, wherein,
the simulator moves on the inclined plane in a matching way through a track or a magnetic suspension mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110333490.7A CN112977898B (en) | 2021-03-29 | 2021-03-29 | Low gravity environment simulation facility for foundation periodic inclined track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110333490.7A CN112977898B (en) | 2021-03-29 | 2021-03-29 | Low gravity environment simulation facility for foundation periodic inclined track |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112977898A CN112977898A (en) | 2021-06-18 |
| CN112977898B true CN112977898B (en) | 2023-05-26 |
Family
ID=76337754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110333490.7A Active CN112977898B (en) | 2021-03-29 | 2021-03-29 | Low gravity environment simulation facility for foundation periodic inclined track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112977898B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182496C (en) * | 2003-04-04 | 2004-12-29 | 清华大学 | Experimental instrument for demonstrating bowl on guide rail |
| JP5105881B2 (en) * | 2007-01-11 | 2012-12-26 | 株式会社Ｉｈｉエアロスペース | Two-dimensional low gravity environment simulator |
| CN102589917B (en) * | 2012-02-23 | 2014-09-24 | 华中科技大学 | Free-falling body verification device for drag-free spacecraft |
| CN103234806B (en) * | 2013-04-30 | 2015-12-09 | 吉林大学 | A kind of Low-gravity environmental simulation test device |
| CN103954468A (en) * | 2014-05-12 | 2014-07-30 | 北京空间机电研究所 | Landing stability testing device and method under moon-gravity-simulated environment |
| CN204166761U (en) * | 2014-11-07 | 2015-02-18 | 仲雨坡 | A kind of mechanics teaching demonstration device |
| CN106081173B (en) * | 2016-07-19 | 2018-07-06 | 哈尔滨工业大学 | Three-dimensional active suspension type spacecraft microgravity simulator |
| CN106628280B (en) * | 2016-11-23 | 2018-01-16 | 南京航空航天大学 | A kind of soft spacecraft landing analogue experiment installation and analogy method |
| CN110758780B (en) * | 2019-09-27 | 2022-05-06 | 中国矿业大学 | Device and method for observing combustion of aerospace equipment in weightless state |
-
2021
- 2021-03-29 CN CN202110333490.7A patent/CN112977898B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112977898A (en) | 2021-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Antar | Fundamentals of low gravity fluid dynamics and heat transfer | |
| Aslanov et al. | Dynamics of tethered satellite systems | |
| Lotz et al. | Einstein-elevator: A new facility for research from μ to 5 | |
| Pearson | The orbital tower: a spacecraft launcher using the Earth's rotational energy | |
| CN103514792B (en) | Space six degree of freedom air supporting follow-up motion platform | |
| CN104318828A (en) | Zero-gravity experiment system for spatial multi-dimensional unfolding mechanism | |
| CN112382160B (en) | Six-degree-of-freedom simulator air floatation pulley system | |
| CN112977898B (en) | Low gravity environment simulation facility for foundation periodic inclined track | |
| EP3831723B1 (en) | Global transportation system and method for placing a payload into a circular orbit | |
| Montalvo et al. | Braking control law for a barbell Electric Sail | |
| CN113911407A (en) | Force following extraterrestrial low-gravity environment simulation landing test system based on rope system | |
| CN110164229B (en) | Training device for carrying object in ground simulated microgravity environment of astronaut | |
| Ismail | The dynamics of a flexible motorised momentum exchange tether (MMET) | |
| Lämmerzahl et al. | Droptowers | |
| CN112849441A (en) | Large-stroke gravity unloading device with adjustable load | |
| CN215117908U (en) | Micro-weightlessness simulation platform | |
| CN106564630B (en) | A kind of gravitational equilibrium and servomechanism for the expansion of large-scale parabolic-cylinder antenna | |
| Fitzpatrick | Classical mechanics | |
| Wingrove | Trajectory control problems in planetary entry of manned vehicles. | |
| Beysens et al. | The space gravity environment | |
| Strehlow et al. | A classroom demonstration of levitation and suspension of a superconductor over a magnetic track | |
| Elhardt et al. | System Requirements Elicitation and Conceptualization for a Novel Space Robot Suspension System | |
| Shi | A mission-based orbit keeping method of the partial space elevator | |
| Russomano et al. | General Concepts in Physics—Definition of Physical Terms | |
| Kanpman | Dynamically supported launch infrastructure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |