CN113183688A - Spoke plate type non-pneumatic tire with bionic vibration reduction function - Google Patents
Spoke plate type non-pneumatic tire with bionic vibration reduction function Download PDFInfo
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- CN113183688A CN113183688A CN202110543931.6A CN202110543931A CN113183688A CN 113183688 A CN113183688 A CN 113183688A CN 202110543931 A CN202110543931 A CN 202110543931A CN 113183688 A CN113183688 A CN 113183688A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C7/00—Non-inflatable or solid tyres
- B60C7/10—Non-inflatable or solid tyres characterised by means for increasing resiliency
Abstract
The invention discloses a spoke plate type non-pneumatic tire with a bionic vibration reduction function, which comprises a tire crown, a spoke plate and a rim combination ring, wherein the tire crown, the spoke plate and the rim combination ring are sequentially arranged from outside to inside along the radial direction of the tire; the radial plates are arranged in an equidistant matrix along the circumferential direction of the tire, symmetrical concave parts are arranged on two sides of each radial plate, each concave part is an arc-shaped notch cut along the thickness direction of each radial plate, and each arc-shaped notch is concave towards the center direction of each radial plate; the starting points of the arc-shaped notches of the concave parts on the adjacent wheel plates are staggered from the tire crown and the wheel rim joint ring respectively. Has the advantages that: the radial excitation force is reduced through the swing deformation of the radial plate, the fluctuation of the excitation force is reduced, and the radial vibration of the non-pneumatic tire is reduced; the vibration damping method can be used for all the spoke plate type non-pneumatic tires, and the application range is wide; the processing is simple and convenient, the cost is saved, and the weight of the tire is reduced; the asymmetric arc has a simple structure, and avoids increasing too much design and manufacturing difficulty and cost.
Description
Technical Field
The invention relates to a non-pneumatic tire, in particular to a spoke plate type non-pneumatic tire with a bionic vibration reduction function, and belongs to the technical field of vehicle tires.
Background
The tire is the only part of the vehicle that comes into contact with the road and plays a crucial role during driving. Although the traditional pneumatic tire has the advantages of good adhesion performance, uniform ground pressure distribution, good fuel economy and the like, the non-pneumatic tire has good development advantages due to the fact that the tire side is thin, the impact resistance is poor, and the cutting, the tire burst, the puncture and the like are easy to cause and become important factors threatening the driving safety of vehicles, and therefore the non-pneumatic tire has the advantages of safety, economy, environmental protection, wear resistance and the like. The support body of the non-pneumatic tire replaces the pneumatic pressure to support the whole vehicle mass and bears the tension and compression load in the vehicle running process. However, the non-pneumatic tire's discontinuous web support structure results in non-uniform stiffness relative to the uniformity of mass distribution of a conventional pneumatic tire, resulting in fluctuating ground contact pressures and areas, which can cause overall and localized vibration effects in the non-pneumatic tire. The non-pneumatic tire has outstanding vibration problems, so that the speed of a vehicle provided with the non-pneumatic tire is limited, the development of the non-pneumatic tire is hindered, and the vibration reduction becomes one of the key problems for developing the non-pneumatic tire. The vibration source of the non-pneumatic tire in the rolling process is the buckling and rebound phenomena of the spoke under the action of tension when the spoke enters and leaves a contact region, the discontinuous spoke is used as a transmission bridge of road excitation force and the vibration of a wheel rim, and the spoke has great influence on the vibration of the non-pneumatic tire, so that the vibration reduction design of the spoke is one of the keys for realizing the vibration reduction of the non-pneumatic tire. However, the existing vibration damping research on the non-pneumatic tire spoke mainly focuses on changing the structural parameters, material characteristics and the like of the spoke, which hardly plays a substantial guiding role in the future practical application of the non-pneumatic tire.
Animals have long evolved in the natural world to have a variety of biological structures and functional characteristics to adapt to natural life, for example, felines have very strong vibration damping capacity to attenuate impact from the ground and realize a silencing feature when catching prey, and the feline paw pad plays an extremely important role in realizing vibration damping capacity as a unique body component contacting with the ground. The inventor discovers that the strain direction of a toe pad area of the claw pad is basically unchanged in the whole grounding process so that the main strain value is continuously increased, and the strain value is alternately increased and then decreased in the inner side area and the outer side area of the palm pad due to the change of the strain direction of the palm pad area at any moment, so that the impact energy from the ground is converted into the strain energy and is dissipated in the advancing direction of the domestic cat and the direction vertical to the advancing direction, namely front-back and left-right swing deformation, and a good vibration damping effect is achieved. Therefore, the vibration reduction mechanism of the cat's claw pad area is applied to the design of a spoke plate of the non-pneumatic tire, and the asymmetric arc is dug at the side edge of the spoke plate to realize the vibration reduction function similar to the swinging deformation of the cat's claw pad, and the asymmetric arc structure and the design method thereof can become an effective way for realizing the vibration reduction of the non-pneumatic tire.
The tire is the only part of the vehicle that comes into contact with the road and plays a crucial role during driving. The conventional pneumatic tire has the advantages of good adhesion performance, small average ground stress, uniform distribution, good fuel economy and the like in continuous development, but the non-pneumatic tire has the development advantages of safety, economy, environmental protection, wear resistance and the like because the non-pneumatic tire has thinner side wall and poor impact resistance and is easy to cause cut, tire burst, puncture and the like to become important factors threatening the driving safety of vehicles. The support body of the non-pneumatic tire replaces the pneumatic pressure to support the whole vehicle mass and bears the tension and compression load in the vehicle running process. However, the discontinuous support structure of the non-pneumatic tire results in non-uniform stiffness with respect to better uniformity of mass distribution of the pneumatic tire, causing fluctuating variations in ground contact pressure and ground contact area, thereby causing global and local vibration effects. The outstanding vibration problem of the non-pneumatic tire restricts the speed increase of a vehicle on which the non-pneumatic tire is mounted, and hinders the development of the non-pneumatic tire, so that vibration reduction becomes one of the keys for developing the non-pneumatic tire. The vibration source of the non-pneumatic tire in the rolling process is the buckling and rebound phenomena of the spokes under the action of tension when the spokes enter and leave the contact area, the interaction between the discrete spokes and the ring, the interaction when the ring is in contact with the ground, and the vibration transmitted to the hub by the ground acting force, the vibration between the ring and the spokes, so that the spokes have great influence on the vibration of the non-pneumatic tire, and the vibration reduction design of the spokes is one of the keys for realizing the vibration reduction of the non-pneumatic tire. However, the existing vibration damping research on the spokes of the non-pneumatic tire is limited to exploring the influence on vibration by changing the structural parameters and the material use of the spokes so as to find a relatively optimized vibration damping scheme, which is difficult to play a substantial guiding role in the future practical application of the non-pneumatic tire.
Animals have long evolved a variety of biological structures and functions that are highly adaptable to nature, for example, felines need to have a very strong damping capacity when capturing prey to attenuate impacts from the ground and to achieve a silencing feature, and the paw pad, as the only body part in contact with the ground, plays a very important role in achieving the damping function. The contact strain between the claw pad and the ground of a domestic cat in normal walking gait is researched, the fact that the strain direction of the toe pad area of the claw pad is basically unchanged in the whole grounding process to enable the main strain value to be continuously increased, and the strain value is alternately increased and then reduced in the inner side area and the outer side area of the palm pad due to the fact that the strain direction of the palm pad area is changed at any moment, so that impact energy from the ground is converted into strain energy and dissipated in the advancing direction of the domestic cat and the direction perpendicular to the advancing direction, namely front-back swing deformation and left-right swing deformation, and the vibration reduction effect superior to that of the toe pad is achieved. Therefore, the vibration reduction mechanism in the cat's claw pad area is applied to the design of a spoke plate of the non-pneumatic tire, the vibration reduction effect is excellent, the asymmetric arcs are dug at the side edge of the spoke plate to realize the vibration reduction function similar to swing deformation of a cat's claw pad, and the asymmetric arc structure can be used as an effective way for reducing vibration of the non-pneumatic tire.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the problem of outstanding vibration of a non-pneumatic tire in the prior art, and provides a spoke plate type non-pneumatic tire with a bionic vibration reduction function.
The technical scheme is as follows: a spoke plate type non-pneumatic tire with a bionic vibration reduction function comprises a tire crown, a spoke plate and a rim combination ring, wherein the tire crown, the spoke plate and the rim combination ring are sequentially arranged from outside to inside along the radial direction of the tire; the radial plates are arranged in an equidistant matrix along the circumferential direction of the tire, symmetrical concave parts are arranged on two sides of each radial plate, each concave part is an arc-shaped notch cut along the thickness direction of each radial plate, and each arc-shaped notch is concave towards the center direction of each radial plate; the starting points of the arc-shaped notches of the concave parts on the adjacent wheel plates are staggered from the tire crown and the wheel rim joint ring respectively.
The invention adopts a bionic vibration-damping spoke plate to apply the swing vibration-damping mechanism of the domestic cat claw pad; the non-pneumatic tire achieves the aims of reducing the amplitude of the radial exciting force and reducing the fluctuation of the exciting force through the swinging deformation of the radial plate in the rolling process of the non-pneumatic tire in a mode of digging asymmetric arcs at the two side edges of the axial direction of the radial plate of the non-pneumatic tire, and further improves the driving smoothness of the non-pneumatic tire.
Preferably, in order to improve the bearing stability of the non-pneumatic tire, the wheel plate comprises a first wheel plate monomer and a second wheel plate monomer, and the starting points of the arc notches of the concave parts on the adjacent first wheel plate monomer and the adjacent second wheel plate monomer respectively start from the tire crown and the wheel rim joint ring in a staggered mode; the first wheel plate monomer and the second wheel plate monomer are arranged in a divergent mode and extend from the wheel rim combination ring to the wheel crown.
The whole spoke is formed by the spoke plates formed by the first spoke plate monomer and the second spoke plate monomer in an equidistant array along the circumferential direction of the non-pneumatic tire, and for a single spoke plate monomer in the spoke plate, the arrangement of the asymmetric arcs is asymmetrically distributed relative to the radial bisector of the axial side surface of the spoke plate, so that the up-down swinging in the rolling process of the tire is realized; for the wheel disk, asymmetry is realized by the staggered arrangement of the starting points of the arc notches of the concave parts of the two wheel disk monomers from the tire crown and the wheel rim joint ring, so that the front-back swing characteristic in the rolling process of the tire is realized by the asymmetrical arc arrangement of the wheel disk, the first wheel disk monomer and the second wheel disk monomer are arranged in a divergent manner, and the bearing stability of the non-pneumatic tire is improved. The asymmetric arc arrangement of the wheel disk applies the principle of cat claw swing vibration reduction, and optimization of radial vibration in the rolling process of the tire is achieved.
Preferably, in order to achieve weight reduction of the tire while saving cost, the total number of the paired webs arranged in the tire circumferential direction in an equally spaced matrix is not less than 20 and not more than 30.
Preferably, in order to realize the bionic vibration reduction principle, the arc-shaped notch comprises a first section of arc, a second section of arc and a third section of arc, and the first section of arc, the second section of arc and the third section of arc are smoothly connected and extend from the outer diameter of the rim combination ring to the inner diameter of the tire crown or from the inner diameter of the tire crown to the outer diameter of the rim combination ring.
The asymmetric arc-shaped notches are dug at the edges of the two axial sides of the radial plate of the non-pneumatic tire, so that the radial exciting force of the non-pneumatic tire is reduced through the swinging deformation of the radial plate in the rolling process, the fluctuation of the exciting force is reduced, and the purpose of reducing the radial vibration of the non-pneumatic tire is further realized.
Preferably, in order to realize smooth transition and avoid the phenomenon of stress concentration of the tire in the rolling process, the starting point of the first section of circular arc is a point A, the point A is the intersection point of the rim combination ring and the first section of circular arc, the quadrant point of the circle where the first section of circular arc is located is a point B, the point B is located on the inner quarter bisector of the wheel disk, the middle node is a point C, the point C is the intersection point of the middle line of the wheel disk and the side surface of the tire, and the point A, the point B and the point C are respectively located on the circle where the first section of circular arc is located; a point D is arranged on an outer quarter bisector of the spoke plate, the intersection point of the spoke plate and the inner diameter of the tire crown is a point E, a point F is a symmetrical point of the point D, and the point D, the point E and the point F are respectively on a circle where the third section of the circular arc is located; the circle center of the circle where the second section of circular arc is located on the inner quarter bisector of the spoke plate, is inscribed in the circle where the first section of circular arc is located, and is circumscribed with the circle where the third section of circular arc is located.
Preferably, in order to further improve the vibration damping effect, the vertical distance from the point B to the side surface of the tire is the depth H of the concave portion, and the depth H is 5.13% -10.26% of the axial length of the web. The shock is weakened through the swing deformation characteristic, so that the excellent vibration damping effect is achieved.
Preferably, in order to further improve the vibration damping effect, the vertical distance from the point D to the side surface of the tire is 20% -40% H.
Has the advantages that: according to the invention, the asymmetric arcs are dug at the edges of the two axial sides of the radial plate of the non-pneumatic tire, so that the radial excitation force of the non-pneumatic tire is reduced through the swinging deformation of the radial plate in the rolling process, the fluctuation of the excitation force is reduced, and the purpose of reducing the radial vibration of the non-pneumatic tire is further realized; compared with other vibration reduction rules obtained by mechanically changing the length and curvature of the spoke, the thickness and material of the spoke and the tire crown, the method provides a brand new bionic vibration reduction method while not influencing the implementation of the inherent parameters of the tires, and the spoke type non-pneumatic tire can use the vibration reduction method, so that the application range is wide; the asymmetric arc structure at the side edge of the spoke can be independently processed without influencing other structural parameters, the processing is simple and convenient, and for an open type non-pneumatic tire, the asymmetric arc tire can be directly manufactured by pre-design or the asymmetric arc processing can be performed on two sides after a complete spoke plate is manufactured; other vibration damping devices do not need to be additionally arranged, and the weight of the tire can be reduced by digging asymmetric arcs at the side edge of the spoke, so that the weight of the tire is reduced while the cost is saved; the tire crown structure of the non-pneumatic tire is not changed, vibration reduction is realized only by digging an asymmetric arc at the side edge of the spoke, the asymmetric arc structure is simple, and the increase of too much design and manufacturing difficulty and cost are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the arrangement of adjacent webs of the present invention;
FIG. 4 is an enlarged fragmentary view of a web element of the present invention;
FIG. 5 is a schematic view of the interior recess of the present invention;
FIG. 6 is a side view of the present invention;
FIG. 7 is a schematic view of a contact strain test of a domestic cat paw pad according to the invention;
FIG. 8 is a graph showing the distribution of the main strain field and strain direction of the grounding of the domestic cat's paw pad according to the present invention;
FIG. 9 is a time domain distribution diagram of strain values in X and Y directions of toe pad and palm pad areas of the domestic cat's claw pad according to the present invention;
FIG. 10 is a frequency spectrum distribution diagram of the ground radial excitation force according to the present invention;
FIG. 11 is a plot of the ground radial excitation force spectrum for a raw tire of the present invention without asymmetric arc treatment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1, 2 and 3, a radial plate type non-pneumatic tire with bionic vibration reduction function comprises a tire crown 1, a wheel disk 2 and a wheel rim combination ring 3, wherein the tire crown 1, the wheel disk 2 and the wheel rim combination ring 3 are sequentially arranged from outside to inside along the radial direction of the tire; the radial plates 2 are arranged in an equidistant matrix along the circumferential direction of the tire, symmetrical concave parts 4 are arranged on two sides of the radial plates 2, the concave parts 4 are arc-shaped notches cut along the thickness direction of the radial plates 2, and the arc-shaped notches are concave towards the center direction of the radial plates 2; the starting points of the arc-shaped notches of the concave parts 4 on the adjacent wheel plates 2 are staggered from the tire crown 1 and the rim joint ring 3 respectively.
The radial plate 2 realizes the swing vibration reduction mechanism of the domestic cat claw pad by digging asymmetric concave parts 4 at the edges of two axial sides of the radial plate. By digging the asymmetric concave parts 4 at the two side edges of the radial plate of the non-pneumatic tire in the axial direction, the radial exciting force of the non-pneumatic tire can be reduced through the swinging deformation of the radial plate in the rolling process, the fluctuation of the exciting force is reduced, and the purpose of reducing the radial vibration of the non-pneumatic tire is further realized. In order to realize the vibration reduction of the non-pneumatic tire in the prior art, the length and the curvature of the spoke, the thickness of the spoke and the tire crown, the material and other parameters are mechanically changed to obtain a vibration reduction rule.
As shown in fig. 3 and 6, the wheel disc 2 includes a first wheel disc monomer 21 and a second wheel disc monomer 22, and the starting points of the arc-shaped gaps of the concave parts 4 on the adjacent first wheel disc monomer 21 and second wheel disc monomer 22 are staggered from the tire crown 1 and the rim joint ring 3 respectively; the first and second web units 21, 22 are arranged in a diverging manner to extend from the rim connecting ring 3 toward the crown 1. The total number of the webs 2 arranged in the tire circumferential direction in an equally spaced matrix is not less than 20 and not more than 30.
The starting points of the asymmetric concave portions 4 on the first and second web monomers 21 and 22 are inverted upside down, and the asymmetry of the concave portions 4 is achieved by virtue of the arrangement thereof in the web pair. The concave portions 4 are arranged at both side edges in the axial direction of the web, and the design method and the design size of the concave portions 4 on the first web single body 21 and the second web single body 22 are the same. The whole spoke is formed by the spoke plate 2 consisting of the first spoke plate monomer 21 and the second spoke plate monomer 22 in an equidistant array along the circumferential direction of the non-pneumatic tire, and for a single spoke plate monomer in the spoke plate 2 pair, the arrangement of the asymmetric arcs is in asymmetric distribution relative to the radial bisector of the axial side surface of the spoke plate 2, so that the up-down swinging in the rolling process of the tire is realized; for the wheel disk 2, asymmetry is realized by respectively carrying out up-down reversal staggered arrangement on two wheel disk monomers, so that the asymmetric arc arrangement of the wheel disk 2 realizes the front-back swing characteristic in the rolling process of the tire, and the wheel disk is formed by staggered arrangement of the wheel disk 2 consisting of a first wheel disk monomer 21 and a second wheel disk monomer 22, so that the bearing stability of the non-pneumatic tire is realized. The asymmetric arc arrangement of the radial plate 2 applies the principle of cat-claw swing vibration reduction, and the optimization of radial vibration in the rolling process of the tire is realized.
As shown in fig. 4 and 5, the arc-shaped notch includes a first arc 41, a second arc 42 and a third arc 43, and the first arc 41, the second arc 42 and the third arc 43 smoothly connect to extend from the outer diameter of the rim combination ring 3 to the inner diameter of the tire crown 1 or from the inner diameter of the tire crown 1 to the outer diameter of the rim combination ring 3. The first section of arc 41, the second section of arc 42 and the third section of arc 43 realize smooth transition, and the phenomenon of stress concentration in the rolling process of the tire is avoided.
The starting point of the first section of circular arc 41 is a point A44, the point A44 is the intersection point of the rim combination ring 3 and the first section of circular arc 41, the quadrant point of the circle where the first section of circular arc 41 is located is a point B45, the point B45 is on the inner quarter bisector 23 of the spoke plate 2, the middle node is a point C46, the point C46 is the intersection point of the middle line 24 of the spoke plate 2 and the side face of the tire, and the point A44, the point B45 and the point C46 are respectively located on the circle where the first section of circular arc 41 is located; a D point 47 is arranged on the outer quarter bisector 25 of the spoke plate 2, the intersection point of the spoke plate 2 and the inner diameter of the tire crown 1 is an E point 48, a point F49 is a symmetrical point of the D point 47, and the D point 47, the E point 48 and the point F49 are respectively on a circle where the third section of the circular arc 43 is located; the center of the circle of the second arc segment 42 is on the inner quarter bisector 23 of the web plate 2 and is inscribed in the circle of the first arc segment 41 and is circumscribed with the circle of the third arc segment 43.
The perpendicular distance from the point B45 to the tire side is the depth H of the fillet 4, which is 5.13% to 10.26% of the axial length of the web 2.
The vertical distance from the point D47 to the side surface of the tire is 20% -40% H.
Fig. 7 is a schematic diagram of a contact strain test of a domestic cat's claw pad, which mainly obtains strain characteristics of toe pad and palm pad areas of the claw pad under normal walking gait.
As shown in fig. 8, which is a distribution diagram of the main grounding strain field and the strain direction of the domestic cat claw pad, referring to X in the drawing as the advancing direction of the domestic cat, and Y as the direction perpendicular to the advancing direction and pointing to the inner side of the claw pad, the main strain directions of the four toe pad areas of 2nd, 3rd, 4th and 5th are all tensile deformations mainly in the Y direction in the whole grounding process; the maximum principal strain value of the palm pad region is smaller than that of the toe pad region due to the swing deformation in the contact surface of the palm pad region, whereas the tensile strain mainly in the Y direction is before 0.18s and the tensile strain mainly in the X direction is after 0.18 s.
As shown in fig. 9, time domain plots of strain values in X and Y directions are shown for 3rd toe pad and palm pad areas of a cat's paw pad, Ex and Ey being used to characterize strain values in X and Y directions, respectively. The toe pad area shown in fig. 9 (a) has almost no change in the strain direction during the whole grounding process, so Ex and Ey are continuously increased, while the palm pad area shown in fig. 9 (b) has the phenomenon that the strain value is alternately increased and then decreased due to the change of the strain direction, so that the strain value is attenuated. Therefore, the domestic cat palm pad can convert impact energy from the ground into strain energy and dissipate the strain energy in the X-Y direction, namely the front-back direction, the left-right direction swing deformation, and achieves the effect of vibration reduction superior to that of a toe pad. The bionic modification design is carried out on the side edge of the spoke plate to realize a damping mechanism similar to swing deformation of a domestic cat claw pad, and a new way for damping of the non-pneumatic tire can be provided.
Fig. 10 and 11 show an embodiment of a spoke type non-pneumatic tire with bionic vibration reduction function according to the invention. In the finite element simulation, when a road surface is fixed, 3665N is radially loaded on the tire, and 60Km/h speed is applied, the ground radial excitation force frequency spectrums of the asymmetric arc tire and the original tire are obtained. Because the Sound Pressure Level (SPL) with the frequency lower than 100Hz has no obvious influence on the perception of noise by human beings, and the amplitude is small when the frequency is more than 1500Hz, the reference value is small, and 100Hz-1500Hz is taken as the value analysis range. In comparison, the root mean square values of all amplitudes in the frequency ranges of PA1, PA2 (peak amplitude) and 100Hz-1500Hz of the asymmetric arc tire are reduced by 49.43%, 43.33% and 41.26% respectively compared with the original tire. The peak amplitude reflects the vibration intensity on local frequency, and the root mean square value can reflect the whole vibration amplitude in the whole frequency range, so that the reduction of the peak amplitude and the root mean square value proves that the asymmetric arc tire can weaken impact through swing deformation characteristics to achieve excellent vibration reduction effect, and further, the feasibility and the effectiveness of the bionic vibration reduction are verified.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A spoke plate type non-pneumatic tire with a bionic vibration reduction function comprises a tire crown (1), a spoke plate (2) and a rim combination ring (3), wherein the tire crown (1), the spoke plate (2) and the rim combination ring (3) are sequentially arranged from outside to inside along the radial direction of the tire; the method is characterized in that: the wheel disc (2) is arranged in a matrix at equal intervals along the circumferential direction of the tire, symmetrical concave parts (4) are arranged on two sides of the wheel disc (2), the concave parts (4) are arc-shaped notches cut along the thickness direction of the wheel disc (2), and the arc-shaped notches are concave towards the center direction of the wheel disc (2); the starting points of the arc-shaped notches of the concave parts (4) on the adjacent wheel plates (2) are staggered from the tire crown (1) and the rim combination ring (3) respectively.
2. The web-type non-pneumatic tire with bionic vibration reduction function according to claim 1, wherein: the wheel disc (2) comprises a first wheel disc monomer (21) and a second wheel disc monomer (22), and the starting points of arc-shaped gaps of the concave parts (4) on the adjacent first wheel disc monomer (21) and second wheel disc monomer (22) are staggered from the positions of the wheel crown (1) and the wheel rim combination ring (3) respectively; the first wheel disc monomer (21) and the second wheel disc monomer (22) are arranged in a divergence shape and extend from the rim combination ring (3) to the wheel crown (1).
3. The web-type non-pneumatic tire with bionic vibration reduction function according to claim 2, wherein: the total number of the equal-interval matrix arrangement of the radial plates (2) along the circumferential direction of the tire is not less than 20 and not more than 30.
4. The web-type non-pneumatic tire with bionic vibration reduction function according to claim 1, wherein: the arc-shaped notch comprises a first section of arc (41), a second section of arc (42) and a third section of arc (43), and the first section of arc (41), the second section of arc (42) and the third section of arc (43) are smoothly connected and extend from the outer diameter of the rim combination ring (3) to the inner diameter of the tire crown (1) or from the inner diameter of the tire crown (1) to the outer diameter of the rim combination ring (3).
5. The web-type non-pneumatic tire with bionic vibration reduction function according to claim 4, wherein: the starting point of the first section of circular arc (41) is a point A (44), the point A (44) is the intersection point of the rim combination ring (3) and the first section of circular arc (41), the quadrant point of the circle where the first section of circular arc (41) is located is a point B (45), the point B (45) is located on the inner quarter bisector (23) of the spoke plate (2), the middle node is a point C (46), the point C (46) is the intersection point of the middle line (24) of the spoke plate (2) and the side face of the tire, and the point A (44), the point B (45) and the point C (46) are respectively located on the circle where the first section of circular arc (41) is located; a D point (47) is arranged on an outer quarter bisector (25) of the wheel disk (2), the intersection point of the wheel disk (2) and the inner diameter of the wheel crown (1) is an E point (48), a point F (49) is a symmetrical point of the D point (47), and the D point (47), the E point (48) and the point F (49) are respectively arranged on a circle where the third section of circular arc (43) is located; the circle center of the circle where the second section of arc (42) is located on the inner quarter bisector (23) of the spoke plate (2), is inscribed with the circle where the first section of arc (41) is located, and is circumscribed with the circle where the third section of arc (43) is located.
6. The web-type non-pneumatic tire with bionic vibration reduction function according to claim 5, wherein: the vertical distance from the point B (45) to the side face of the tire is the depth H of the concave portion (4), and the depth H is 5.13% -10.26% of the axial length of the spoke plate (2).
7. The web-type non-pneumatic tire with bionic vibration reduction function according to claim 6, wherein: the vertical distance from the point D (47) to the side face of the tire is 20% -40% H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110543931.6A CN113183688B (en) | 2021-05-19 | 2021-05-19 | Spoke plate type non-pneumatic tire with bionic vibration reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110543931.6A CN113183688B (en) | 2021-05-19 | 2021-05-19 | Spoke plate type non-pneumatic tire with bionic vibration reduction function |
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| CN113183688A true CN113183688A (en) | 2021-07-30 |
| CN113183688B CN113183688B (en) | 2022-07-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166531A (en) * | 2021-11-30 | 2022-03-11 | 广东粤港澳大湾区黄埔材料研究院 | A joint testing arrangement that is used for non-pneumatic tire rim and spoke |
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| CN1955018A (en) * | 2005-10-27 | 2007-05-02 | 米其林技术公司 | Non-pneumatic tire |
| JP2008162495A (en) * | 2006-12-28 | 2008-07-17 | Yokohama Rubber Co Ltd:The | Non-pneumatic tire |
| US20120067481A1 (en) * | 2010-09-16 | 2012-03-22 | Societe De Technologie Michelin | Passive tuned vibration absorber |
| CN105636799A (en) * | 2013-10-18 | 2016-06-01 | 米其林集团总公司 | Non-pneumatic wheel with reduced lateral stiffness |
| US20170368877A1 (en) * | 2014-12-17 | 2017-12-28 | Compagnie Generale Des Etablissements Michelin | Non-pneumatic tire with integrated polymeric flexible wheel center mount |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1955018A (en) * | 2005-10-27 | 2007-05-02 | 米其林技术公司 | Non-pneumatic tire |
| JP2008162495A (en) * | 2006-12-28 | 2008-07-17 | Yokohama Rubber Co Ltd:The | Non-pneumatic tire |
| US20120067481A1 (en) * | 2010-09-16 | 2012-03-22 | Societe De Technologie Michelin | Passive tuned vibration absorber |
| CN105636799A (en) * | 2013-10-18 | 2016-06-01 | 米其林集团总公司 | Non-pneumatic wheel with reduced lateral stiffness |
| US20170368877A1 (en) * | 2014-12-17 | 2017-12-28 | Compagnie Generale Des Etablissements Michelin | Non-pneumatic tire with integrated polymeric flexible wheel center mount |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166531A (en) * | 2021-11-30 | 2022-03-11 | 广东粤港澳大湾区黄埔材料研究院 | A joint testing arrangement that is used for non-pneumatic tire rim and spoke |
| CN114166531B (en) * | 2021-11-30 | 2024-01-02 | 广东粤港澳大湾区黄埔材料研究院 | Joint testing device for non-pneumatic tire rim and spoke |
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|---|---|
| CN113183688B (en) | 2022-07-22 |
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Effective date of registration: 20230516 Address after: 545616 No.1, Guandong Road, Luorong Town, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee after: GUANGXI LINGLONG TIRE Co.,Ltd. Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: JIANGSU University |
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