CN114312131A - Manned lunar vehicle wheel with high bearing, high damping and high traction performance - Google Patents
Manned lunar vehicle wheel with high bearing, high damping and high traction performance Download PDFInfo
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- CN114312131A CN114312131A CN202210150546.XA CN202210150546A CN114312131A CN 114312131 A CN114312131 A CN 114312131A CN 202210150546 A CN202210150546 A CN 202210150546A CN 114312131 A CN114312131 A CN 114312131A
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Abstract
The utility model provides a manned lunar vehicle wheel with high bearing, high bradyseism and high traction performance, includes bionical wheel face and bionical wheel hub structure, and bionical wheel face is the overall structure who is formed by 9 sections wheel face monomer arrays, and wheel face monomer cross section curve is the bionical curve that obtains for optimizing ostrich sole contour line, and this wheel face structure is favorable to the sand fixation current-limiting, improves the traction performance of wheel. The bionic wheel surface single boss is fixedly connected with the bionic wheel hub, 8 rows of convex body structures are arranged on the surface of the bionic wheel surface single boss, and each row of convex body structures are distributed along a bionic curve obtained by optimizing the arrangement rule of foot mastoids of the ostrich, so that the effects of improving adhesion and increasing traction are achieved; the wheel face monomer groove is provided with square holes and is of a screen structure, so that the effects of fixing sand, limiting flow and increasing traction are achieved; the bionic hub axial section outer contour curve is a bionic curve obtained by optimizing a body contour line of the armored car, and the effect of improving the bearing performance is achieved; the contour lines of the bionic through holes on the two sides of the bionic hub are bionic curves obtained by optimizing cell contour lines inside the foot pad of the mammal, and the function of improving the vibration damping performance is achieved.
Description
Technical Field
The invention belongs to the technical field of engineering bionics, and relates to a manned lunar vehicle wheel with high bearing capacity, high damping and high traction performance.
Background
The moon surface contains a large amount of resources, such as nuclear fusion materials-helium 3, rare earth elements, ilmenite and the like. With the global energy strategy gradually directing the attention to the moon for exploration, the development of manned lunar moving vehicles and lunar moving test bases becomes the most important. The wheels are important components of a manned lunar surface moving vehicle and a lunar surface moving test base, and are important for improving the high passing performance of the lunar surface moving device. Manned lunar surface mobile vehicles and lunar mobile test bases require wheels with excellent load bearing and vibration damping properties. However, the existing manned lunar vehicle has insufficient wheel bearing performance, and is easy to slip and sink when running on the lunar soil, and even cannot normally pass. The wheels of the manned lunar vehicle with high bearing, high damping and high traction performance are designed with the research aim of improving the bearing performance, the damping performance and the traction performance of the manned lunar vehicle, and the technical support can be provided for the smooth implementation of the manned lunar task.
Research shows that the Dendrolimus Punctatus is extremely pressure resistant, and the mammalian footpad has high vibration damping performance. The invention optimizes the body contour line of the armored beetle and the cell contour line inside the footpad of the mammal, and respectively applies the armored beetle and the cell contour line in the design of the spoke and the hub structure, thereby improving the bearing and the vibration damping performance of the wheel. Researches show that the ostrich foot bottom mastoid structure and the arrangement rule thereof and the ostrich foot bottom outline curved surface are beneficial to improving the traction performance of the ostrich foot on soft ground. The invention adopts the engineering bionic technology, applies the superior characteristics of animals in the nature to the design of the wheel, and is beneficial to developing the manned lunar vehicle wheel with high bearing, high damping and high traction performances.
Disclosure of Invention
The invention aims to improve the bearing performance of a manned lunar vehicle, solve the difficult problems of skidding and sinking of a lunar probe vehicle on a soft lunar surface, and provide a manned lunar vehicle wheel with high bearing, high buffering and high traction performance by using the superior characteristics of animals in the nature as inspiration and utilizing the principle of engineering bionics.
A manned lunar vehicle wheel with high bearing, high damping and high traction performance comprises a bionic wheel surface and a bionic wheel hub;
the bionic wheel surface is of an integral structure formed by 9 sections of wheel surface monomer arrays, the cross section curve of the bionic wheel surface monomer is a first bionic curve obtained by optimizing the ostrich plantar contour line, the first bionic curve is provided with a convex line and a concave line, and the bionic wheel surface monomer is provided with a boss and a groove; the bosses of the bionic wheel surface monomer are fixedly connected with the bionic wheel hub, 8 rows of convex body structures are arranged on the surface of the bionic wheel surface monomer, and each row of convex body structures are distributed along a second bionic curve obtained by optimizing the arrangement rule of the pelteobagrus of the ostrich, so that the effects of improving adhesion and increasing traction are achieved; the grooves of the bionic wheel surface monomer are provided with square holes and are of a screen structure, so that the effects of fixing sand, limiting flow and increasing traction are achieved;
the bionic hub axial section outer contour curve is a third bionic curve obtained by optimizing a body contour line of the armored car, and the function of improving the bearing performance is achieved; two side surfaces of the bionic hub are provided with 9 groups of bionic through holes, and each group of bionic through holes is provided with 4 holes which are arranged along the radial direction of the wheel; the contour lines of the 4 bionic through holes are fourth bionic curves obtained by optimizing the contour lines of cells inside the foot pad of the mammal, and the function of improving the vibration damping performance is achieved; the size of each group of bionic through holes is sequentially enlarged by 2 times, 1.2 times and 1.2 times along the direction from the wheel axle to the wheel surface, and the side surfaces of the bionic wheel hubs have 45 through holes in total by adding the through holes between every two groups of bionic through holes, so that the weight reduction effect is achieved.
The mathematical expression of the first bionic curve is as follows:
y＝-0.003x2+0.79x, wherein x is more than or equal to 0 and less than 115
y＝1.16E-5x3-0.002x2+0.03x +63.82, where 115. ltoreq. x < 170
y＝-0.005x2+1.97x-136.25, where 170. ltoreq. x.ltoreq.200.
The mathematical expression of the second bionic curve is as follows:
y＝-0.02x2-7.64x-612.1 where-192. ltoreq. x < -135
y＝-4.23E-7x3+0.01x2+0.007x-180.37 where-135 is not less than x < 135
y＝-0.02x2+7.64x-612.1, where 135. ltoreq. x.ltoreq.192.
The mathematical expression of the third bionic curve is as follows:
x is 0, wherein y is more than or equal to 0 and less than or equal to 192
y is 37, wherein x is more than or equal to 0 and less than or equal to 75
y is 3.23E-7x4-1.48E-4x3+0.03x2-1.93x +89.15, wherein x is more than 75 and less than or equal to 179
y＝-0.03x2+10.96x-978.24, where 179 < x.ltoreq.198
The mathematical expression of the fourth bionic curve is as follows:
y＝-6.98E-7x4+2.78E-4x3+2.79x-0.04x2+6.09, wherein 0<x<200，y＞0
y＝0.03x2-2.89x-4.06, wherein x is more than 0 and less than 45 and y is more than 0
y＝-2.42E-7x3-0.01x2+1.32x-120.42 where x is 45-155 and y is 0
y＝0.03x29.12x +616.4, wherein x is more than or equal to 155 and less than or equal to 200, and y is less than or equal to 0.
The invention has the beneficial effects that:
1. the bionic wheel surface is formed by 9 sections of wheel surface monomer arrays, the wheel surface monomer outline curved surface is optimized from the ostrich sole curved surface, and the ostrich sole curved surface is provided with a boss and a groove, and the surface of the boss is provided with a convex body structure arranged along a bionic curve. When the wheel rolls, the boss and the groove act together to fix sand, limit flow and improve traction, and the convex structure is used for increasing adhesion and improving traction.
2. The bionic hub axial section outer contour curve is a bionic curve obtained by optimizing a body contour line of the armored car, and the bionic hub axial section outer contour curve plays a role in bearing performance of the wheel. The two side surfaces of the bionic hub are provided with 9 groups of through holes, each group is 4, the contour lines of the through holes are all bionic curves obtained by optimizing cell contour lines inside the foot pads of the mammals, and the function of improving the vibration damping performance of the wheel is achieved.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a sectional view taken along line F-F in FIG. 3;
FIG. 5 is a first biomimetic graph of a cross-section of a wheel face monomer of the present invention;
FIG. 6 is a second graph of a bionic curve of the arrangement of the convex structures of the wheel surface of the present invention;
FIG. 7 is a third bionic graph of the outer profile of the axial section of the hub according to the present invention;
FIG. 8 is a fourth bionic curve diagram of the contour lines of the through holes on the two sides of the hub.
Detailed Description
As shown in fig. 1, 2, 3 and 4, the manned lunar vehicle wheel with high bearing, high vibration damping and high traction performance comprises a bionic wheel surface 1 and a bionic wheel hub 2, wherein the bionic wheel surface 1 is of an integral structure formed by 9 sections of wheel surface monomer arrays, the cross section curve of the bionic wheel surface monomer is a first bionic curve A obtained by optimizing the ostrich sole contour line, the first bionic curve A is provided with a convex line and a concave line, and the bionic wheel surface monomer is provided with a boss 1-1 and a groove 1-2; the boss 1-1 of the bionic wheel surface monomer is fixedly connected with the bionic wheel hub 2, 8 rows of convex body structures a are arranged on the surface, and each row of convex body structures a are distributed along a second bionic curve B obtained by optimizing the arrangement rule of the pelteobagrus of the ostrich, so that the effects of improving adhesion and increasing traction are achieved; the grooves 1-2 of the bionic wheel surface monomer are provided with square holes and are of a screen structure, so that the effects of fixing sand, limiting flow and increasing traction are achieved; the outer contour curve of the axial section of the bionic hub 2 is a third bionic curve C obtained by optimizing the body contour line of the armored car, and the function of improving the bearing performance is achieved; two side surfaces of the bionic hub 2 are provided with 9 groups of bionic through holes b, and each group of bionic through holes b is provided with 4 holes which are arranged along the radial direction of the wheel; the contour lines of the 4 bionic through holes b are all fourth bionic curves D obtained by optimizing the contour lines of cells inside the foot pad of the mammal, and the function of improving the vibration damping performance is achieved; the size of each group of bionic through holes b is sequentially enlarged by 2 times, 1.2 times and 1.2 times along the direction from the wheel axle to the wheel surface, and the side surfaces of the bionic wheel hub 2 are totally 45 through holes in addition to the through holes between each two groups of bionic through holes b, so that the weight reduction effect is achieved.
The mathematical expression of the first bionic curve A is as follows:
y＝-0.003x2+0.79x, wherein x is more than or equal to 0 and less than 115
y＝1.16E-5x3-0.002x2+0.03x +63.82, where 115. ltoreq. x < 170
y＝-0.005x2+1.97x-136.25, where 170. ltoreq. x.ltoreq.200.
The mathematical expression of the second bionic curve B is as follows:
y＝-0.02x2-7.64x-612.1 where-192. ltoreq. x < -135
y＝-4.23E-7x3+0.01x2+0.007x-180.37 where-135 is not less than x < 135
y＝-0.02x2+7.64x-612.1, where 135. ltoreq. x.ltoreq.192.
The mathematical expression of the third bionic curve C is as follows:
x is 0, wherein y is more than or equal to 0 and less than or equal to 192
y is 37, wherein x is more than or equal to 0 and less than or equal to 75
y is 3.23E-7x4-1.48E-4x3+0.03x2-1.93x +89.15, wherein x is more than 75 and less than or equal to 179
y＝-0.03x2+10.96x-978.24, where 179 < x.ltoreq.198
The mathematical expression of the fourth bionic curve D is as follows:
y＝-6.98E-7x4+2.78E-4x3+2.79x-0.04x2+6.09, wherein 0<x<200，y＞0
y＝0.03x2-2.89x-4.06, wherein x is more than 0 and less than 45 and y is more than 0
y＝-2.42E-7x3-0.01x2+1.32x-120.42 where x is 45-155 and y is 0
y＝0.03x29.12x +616.4, wherein x is more than or equal to 155 and less than or equal to 200, and y is less than or equal to 0.
Fig. 5, 6, 7 and 8 are respectively a first bionic curve a of the cross section of the wheel surface monomer, a second bionic curve B of the wheel surface convex body structure arrangement, a third bionic curve C of the outer contour of the axial section of the hub and a fourth bionic curve D of the contour line of the through holes on the two sides of the hub.
Claims (6)
1. Manned lunar vehicle wheel with high bearing, high damping and high traction performance, its characterized in that: the bionic wheel surface is composed of a bionic wheel surface (1) and a bionic wheel hub (2), wherein the bionic wheel surface (1) is of an integral structure formed by 9 sections of wheel surface monomer arrays, a wheel surface monomer cross section curve is a first bionic curve (A) obtained by optimizing ostrich sole contour lines, the first bionic curve (A) is provided with convex lines and concave lines, and the wheel surface monomer is provided with a boss (1-1) and a groove (1-2); the boss (1-1) of the wheel face monomer is fixedly connected with the bionic wheel hub (2); each boss (1-1) is provided with 8 rows of wheel surface convex body structures (a), and each row of wheel surface convex body structures (a) are distributed along a second bionic curve (B) obtained by optimizing the arrangement rule of foot mastoids of the ostrich; each groove (1-2) of the wheel face monomer is provided with a square hole and is of a screen structure.
2. Manned lunar vehicle wheel with high load bearing, high damping and high traction performance according to claim 1, characterized in that: the mathematical expression of the first bionic curve (A) is as follows:
y＝-0.003x2+0.79x, wherein x is more than or equal to 0 and less than 115
y＝1.16E-5x3-0.002x2+0.03x +63.82, where 115. ltoreq. x < 170
y＝-0.005x2+1.97x-136.25, where 170. ltoreq. x.ltoreq.200.
3. A manned lunar vehicle wheel with high load bearing, high damping and high traction performance according to claim 1, characterized in that the mathematical expression of said second biomimetic curve (B) is:
y＝-0.02x2-7.64x-612.1, wherein-192 is less than-135
y＝-4.23E-7x3+0.01x2+0.007x-180.37 where-135 is not less than x < 135
y＝-0.02x2+7.64x-612.1, where 135. ltoreq. x.ltoreq.192.
4. Manned lunar vehicle wheel with high load bearing, high damping and high traction performance according to claim 1, characterized in that: the bionic hub (2) is characterized in that the outer contour curve of the axial section of the bionic hub is a third bionic curve (C) obtained by optimizing a body contour line of the armored beetle; two side surfaces of the bionic hub (2) are provided with 9 groups of bionic through holes (b), and each group of bionic through holes (b) is provided with 4 holes which are arranged along the radial direction of the wheel; the contour lines of the 4 bionic through holes (b) are all fourth bionic curves (D) obtained by optimizing the contour lines of cells inside the footpads of the mammals; the size of each group of bionic through holes (b) is sequentially enlarged by 2 times, 1.2 times and 1.2 times along the direction from the wheel axle to the wheel surface; and through holes between every two groups of bionic through holes (b) are added, and the side surfaces of the bionic hubs have 45 through holes.
5. Manned lunar vehicle wheel with high load bearing, high damping and high traction performance according to claim 4, characterized in that: the mathematical expression of the third bionic curve (C) is as follows:
x is 0, wherein y is more than or equal to 0 and less than or equal to 192
y is 37, wherein x is more than or equal to 0 and less than or equal to 75
y is 3.23E-7x4-1.48E-4x3+0.03x2-1.93x +89.15, wherein x is more than 75 and less than or equal to 179
y＝-0.03x2+10.96x-978.24, where 179 < x ≦ 198.
6. Manned lunar vehicle wheel with high load bearing, high damping and high traction performance according to claim 4, characterized in that: the mathematical expression of the fourth bionic curve (D) is as follows:
y＝-6.98E-7x4+2.78E-4x3+2.79x-0.04x2+6.09, wherein 0<x<200，y＞0
y＝0.03x2-2.89x-4.06, wherein x is more than 0 and less than 45 and y is more than 0
y＝-2.42E-7x3-0.01x2+1.32x-120.42 where x is 45-155 and y is 0
y＝0.03x29.12x +616.4, wherein x is more than or equal to 155 and less than or equal to 200, and y is less than or equal to 0.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210150546.XA CN114312131B (en) | 2022-02-18 | 2022-02-18 | Manned lunar vehicle wheel with high bearing, high damping and high traction performance |
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| CN202210150546.XA CN114312131B (en) | 2022-02-18 | 2022-02-18 | Manned lunar vehicle wheel with high bearing, high damping and high traction performance |
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| CN114312131B CN114312131B (en) | 2022-12-06 |
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2022
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