CN109027082A - A kind of nonlinear spring group structure and its application method - Google Patents
A kind of nonlinear spring group structure and its application method Download PDFInfo
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- CN109027082A CN109027082A CN201811041107.5A CN201811041107A CN109027082A CN 109027082 A CN109027082 A CN 109027082A CN 201811041107 A CN201811041107 A CN 201811041107A CN 109027082 A CN109027082 A CN 109027082A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
Abstract
The invention discloses a kind of nonlinear spring group structure and its application methods, wherein, groups of springs structure includes the cylindrical structure and tube-in-tube structure of mutual sheathing, the cylindrical structure includes the first mounting plate, it is vertically equipped with the cylinder of multiple coaxial packages on the first mounting plate, installs and has elastic component between two adjacent cylinders, elastic element is equipped with installation end and free end along elastic direction, elastic element installation end is fixedly mounted on the first mounting plate, and elastic element free end is towards tube-in-tube structure；The tube-in-tube structure includes the second mounting plate, the sleeve of multiple coaxial packages is vertically equipped on the second mounting plate, sleeve, which can slide, to be inserted between two adjacent cylinders and compress to corresponding elastic element.With this configuration and method, it can be matched, be had many advantages, such as using easy, matching way is flexible and changeable and spring application scenarios can be improved according to different application scenarios, different pressures size.
Description
Technical field
The present invention relates to spring technical fields, and in particular to a kind of nonlinear spring group structure and its application method.
Background technique
Spring is a kind of using the elastic machine components come work, and the part made of elastic material is sent out under external force
Raw deformation restores to the original state again after removing external force.Spring is generally made of spring steel, the complicated multiplicity of the type of spring, according to shape,
Mainly there are helical spring, scroll spring, flat spring, heterotypic spring etc., Hookean spring and non-is divided into according to spring bullet deformation quantity again
Hookean spring.Conventional springs are Hookean spring mostly, and elastic force calculation formula: F=kx, wherein F indicates that elastic force, k indicate elasticity
Coefficient, x indicate the deformation quantity for stretching or compressing, and the elastic force and spring deformation amount of conventional springs are proportional, referring to figure
1.How but during real life, the case where much needing non-linear elastic force can be encountered, such as the gate being placed in river
It realizes the closed shutter in the case where water flow impact pressure is excessive, opens gate in the lesser situation of water flow impact pressure, not cocurrent flow
The water flow of speed takes on non-linear relation to the impact force of gate；Hookean spring traditional at this time cannot be met the requirements, anxious
Need one kind that can carry out matched nonlinear spring according to different application scenarios, different pressures size.
Summary of the invention
In view of the above shortcomings of the prior art, it is an object of the invention to: how to design a kind of nonlinear spring group
Structure can be matched according to different application scenarios, different pressures size, be had using easy, matching way is flexibly more
The advantages that becoming and spring application scenarios can be improved.
Present invention employs the following technical solutions:
A kind of nonlinear spring group structure, cylindrical structure and tube-in-tube structure including mutual sheathing, the cylindrical structure packet
The first mounting plate is included, the cylinder of multiple coaxial packages is vertically equipped on the first mounting plate, is pacified between two adjacent cylinders
Equipped with elastic element, elastic element is equipped with installation end and free end along elastic direction, and elastic element installation end is fixedly mounted on the
On one mounting plate, elastic element free end is towards tube-in-tube structure；The tube-in-tube structure includes the second mounting plate, in the second mounting plate
On vertically be equipped with multiple coaxial packages sleeve, sleeve, which can slide, to be inserted between two adjacent cylinders and to corresponding elasticity
Element is compressed.
Further, the cylindrical structure further includes mounting rod, and mounting rod one end is fixedly mounted in the middle part of the first mounting plate,
The mounting rod other end is towards tube-in-tube structure；The cylinder include from center the first cylinder outward, the second cylinder, the 3rd cylinder and
The 4th cylinder, the sleeve include first sleeve, second sleeve, 3rd sleeve and the 4th sleeve from center outward, the bullet
Property element include the first elastic element, the second elastic element and third elastic element；First elastic element is mounted on the first cylinder
Between the second cylinder, the second elastic element is mounted between the second cylinder and the 3rd cylinder, and third elastic element is mounted on
Between three cylinders and the 4th cylinder, first sleeve can sliding sleeve on the mounting rod, second sleeve can be slided and be inserted in first
It is compressed between cylinder and the second cylinder and to the first elastic element, 3rd sleeve can be slided and be inserted in the second cylinder and third
It is compressed between cylinder and to the second elastic element, 3rd sleeve, which can be slided, is inserted between the 3rd cylinder and the 4th cylinder simultaneously
Third elastic element is compressed.
Further, first elastic element, the second elastic element are identical with the length of third elastic element, they are each
From free end be in same upright plane；The first sleeve, second sleeve, the length of 3rd sleeve and 4th sleeve are gradually
Become larger or becomes smaller.
Further, the length of the first sleeve, second sleeve, 3rd sleeve and 4th sleeve is identical, each
Same upright plane is in towards one end of cylindrical structure；First elastic element, the second elastic element and third elasticity member
The length of part becomes larger or becomes smaller.
Further, the elastic element selects helical spring.
A kind of application method of nonlinear spring group structure, comprising the following steps:
S1: the coefficient of elasticity of all elastic element in groups of springs structure is identical, if coefficient of elasticity is K；
S2: when the first mounting plate or the second mounting plate are under pressure, tube-in-tube structure is inserted in cylindrical structure, 4th sleeve
It is compressed with third resilient element contacts and to third elastic element, remaining elastic element keeps free state, elastic at this time
Coefficient is K；As tube-in-tube structure continues to be set in cylindrical structure, 3rd sleeve and the second resilient element contacts and to the second elasticity
Element is compressed, and the first elastic element keeps free state, and coefficient of elasticity is 2K at this time；
S3: assuming that elastic element number is unlimited, and so on, as tube-in-tube structure is gradually inserted in cylindrical structure, groups of springs
The coefficient of elasticity of structure is gradually increased, so that the elastic force of groups of springs structure and amount of elastic deformation are in functional relation.
Further, according to the difference of coefficient of elasticity, the elastic force and amount of elastic deformation of groups of springs structure can be in 1.5
Secondary functional relation, quadratic function relation or cubic function relationship.
Compared with the prior art, the invention has the following advantages that
A kind of nonlinear spring group structure and its application method disclosed by the invention, by multiple groups coaxial springs successively
Compression, thus obtain the nonlinear change of elastic force Yu spring deformation amount, it can be according to the difference of the elastic coefficient, it can
Allow elastic force and spring deformation amount in 1.5 functional relations, quadratic function relation or cubic function relationship.With this configuration and
Method can be matched according to different application scenarios, different pressures size, be had using easy, matching way is flexibly more
The advantages that becoming and spring application scenarios can be improved.
Detailed description of the invention
Fig. 1 is the elastic force of Hookean spring and the function curve diagram of deformation quantity in background technique；
Fig. 2 is the schematic diagram of the section structure of nonlinear spring group structure in the embodiment of the present invention；
Fig. 3 is the perspective view of nonlinear spring group structure in the embodiment of the present invention；
Fig. 4 is the elastic force analysis flow chart diagram of nonlinear spring group structure in the embodiment of the present invention；
Fig. 5 is 1.5 function curves of the elastic force of nonlinear spring group structure and spring deformation amount in the embodiment of the present invention
Figure；
Fig. 6 is the quadratic function curve of the elastic force of nonlinear spring group structure and spring deformation amount in the embodiment of the present invention
Figure；
Fig. 7 is the cubic function curve of the elastic force of nonlinear spring group structure and spring deformation amount in the embodiment of the present invention
Figure；
Fig. 8 is the structural schematic diagram of gate valve in the embodiment of the present invention；
Fig. 9 is the structural schematic diagram of valve mechanism in the embodiment of the present invention；
Figure 10 is the structural schematic diagram of mounting base in the embodiment of the present invention；
Figure 11 is the function curve diagram of the power hydraulic pressure F of gate valve and spring deformation amount in the embodiment of the present invention.
Drawing reference numeral:
1, the first mounting plate；2, the second mounting plate；3, mounting rod；4, the first cylinder；5, the second cylinder；6, the 3rd cylinder；
7, the 4th cylinder；8, first sleeve；9, second sleeve；10,3rd sleeve；11,4th sleeve；12, the first elastic element；13,
Second elastic element；14, third elastic element；15, shell；16, valve seat；17, first baffle；18, second baffle；19 elasticity knots
Structure；20, connecting rod；21, support base；22, support plate；23, limited block.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be intended only as example, and cannot be used as a limitation and limit protection of the invention
Range.
Embodiment one:
Referring to Fig. 2 and Fig. 3, a kind of nonlinear spring group structure, cylindrical structure and tube-in-tube structure including mutual sheathing, institute
Stating cylindrical structure includes the first mounting plate 1, mounting rod 3, the first cylinder 4, the second cylinder 5, the 3rd cylinder 6, the 4th cylinder 7, the
One elastic element 12, the second elastic element 13 and third elastic element 14；The tube-in-tube structure includes the second mounting plate 2, first
Sleeve 8, second sleeve 9,3rd sleeve 10 and 4th sleeve 11.Wherein, mounting rod one end is fixedly mounted in the first mounting plate
Portion, for the mounting rod other end towards tube-in-tube structure, the first cylinder, the second cylinder, the 3rd cylinder and the 4th cylinder are same outward from center
Axis is vertical on the first mounting plate, and each elastic element is equipped with installation end and free end, each elastic element along elastic direction
Installation end is fixedly mounted on the first mounting plate, and each elastic element free end is towards tube-in-tube structure；The installation of first elastic element
Between the first cylinder and the second cylinder, the second elastic element is mounted between the second cylinder and the 3rd cylinder, third elasticity member
Part is mounted between the 3rd cylinder and the 4th cylinder.Wherein, first sleeve, second sleeve, 3rd sleeve and 4th sleeve be therefrom
Coaxial vertical is set on the second mounting plate the heart outward.First sleeve can sliding sleeve on the mounting rod, second sleeve can be slided
Dynamic to be inserted between the first cylinder and the second cylinder and compress to the first elastic element, 3rd sleeve can be slided and be inserted in second
It is compressed between cylinder and the 3rd cylinder and to the second elastic element, 3rd sleeve can be slided and be inserted in the 3rd cylinder and the 4th
It is compressed between cylinder and to third elastic element.
In the present embodiment, first elastic element, the second elastic element are identical with the length of third elastic element, they
Respective free end is in same upright plane；The first sleeve, second sleeve, the length of 3rd sleeve and 4th sleeve by
Gradual change is big or becomes smaller.
Other than aforesaid way, there are also another structures can achieve identical effect, specific structure are as follows: first set
Cylinder, second sleeve, 3rd sleeve are identical with the length of 4th sleeve, and one end of each towards cylindrical structure is in same
Upright plane；The length of first elastic element, the second elastic element and third elastic element becomes larger or becomes smaller.
When it is implemented, the elastic element selects helical spring.
Referring to Fig. 4, a kind of application method of nonlinear spring group structure, comprising the following steps:
S1: the coefficient of elasticity of all elastic element in groups of springs structure is identical, if coefficient of elasticity is K；
S2: when the first mounting plate or the second mounting plate are under pressure, tube-in-tube structure is inserted in cylindrical structure, 4th sleeve
It is compressed with third resilient element contacts and to third elastic element, remaining elastic element keeps free state, elastic at this time
Coefficient is K；As tube-in-tube structure continues to be set in cylindrical structure, 3rd sleeve and the second resilient element contacts and to the second elasticity
Element is compressed, and the first elastic element keeps free state, and coefficient of elasticity is 2K at this time；
S3: assuming that elastic element number is unlimited, and so on, as tube-in-tube structure is gradually inserted in cylindrical structure, groups of springs
The coefficient of elasticity of structure is gradually increased, so that the elastic force of groups of springs structure and amount of elastic deformation are in functional relation.
Referring to Fig. 5, when spring deformation amount is 1, groups of springs coefficient of elasticity K is 1.828427125, the elasticity system of single spring
Number k is 1.828427125, and elastic force F is 1；When spring deformation amount is 5, groups of springs coefficient of elasticity K is 3.516598569, single bullet
The coefficient of elasticity k of spring is 0.336258682, and elastic force F is 11.18034；When spring deformation amount is 11, groups of springs coefficient of elasticity K is
5.086346688, the coefficient of elasticity k of single spring is 0.226250596, and elastic force F is 36.48287；Spring deformation amount is 15
When, groups of springs coefficient of elasticity K is 5.905249807, and the coefficient of elasticity k of single spring is 0.193703029, and elastic force F is
58.09475；The elastic force and amount of elastic deformation of groups of springs structure can be in 1.5 functional relations.
Referring to Fig. 6, when spring deformation amount is 1, groups of springs coefficient of elasticity K is 1.5, and the coefficient of elasticity k of single spring is 1,
Elastic force F is 0.5；When spring deformation amount is 5, groups of springs coefficient of elasticity K is 5.5, and the coefficient of elasticity k of single spring is 1, elastic force F
It is 12.5；When spring deformation amount is 11, groups of springs coefficient of elasticity K is 11.5, and the coefficient of elasticity k of single spring is 1, and elastic force F is
60.5；When spring deformation amount is 15, groups of springs coefficient of elasticity K is 15.5, and the coefficient of elasticity k of single spring is 1, and elastic force F is
112.5；The elastic force and amount of elastic deformation of groups of springs structure can be in quadratic function relation.
Referring to Fig. 7, when spring deformation amount is 1, groups of springs coefficient of elasticity K is 7, and the coefficient of elasticity k of single spring is 6, bullet
Power F is 1；When spring deformation amount is 5, groups of springs coefficient of elasticity K is 91, and the coefficient of elasticity k of single spring is 30, and elastic force F is
125；When spring deformation amount is 11, groups of springs coefficient of elasticity K is 397, and the coefficient of elasticity k of single spring is 66, and elastic force F is
1331；When spring deformation amount is 15, groups of springs coefficient of elasticity K is 721, and the coefficient of elasticity k of single spring is 90, and elastic force F is
3375；The elastic force and amount of elastic deformation of groups of springs structure can be in cubic function relationship.
When it is implemented, the spring number of composition groups of springs structure is limited, and the function curve of function curve and Non-smooth surface, benefit
With higher mathematics differential thought, when contained spring is close unlimited more, which is ideal operation curve, in real work
Under state, possess a certain number of springs, job requirement can be met, it, can be original when operating condition precision prescribed is high
On the basis of reduce the coefficient of elasticity of single spring, increase the number of inner linear spring, reduce variable gradient, so as to improve whole
The operating accuracy of a groups of springs.
Ordinate in above-mentioned functional image is the size of spring force, and abscissa is the size of spring deformation amount.
Embodiment two:
In example 1, the main functional relation compressed to realize elastic force and amount of elastic deformation using spring,
Compared with embodiment one, embodiment two mainly realizes that specific structure is as follows using the stretching of spring: the first elastic element from
It is fixedly connected with second sleeve by pull rod by holding, the free end of the second elastic element and 3rd sleeve connect by the way that pull rod is fixed
It connects, the free end of third elastic element is fixedly connected with 4th sleeve by pull rod.Meanwhile first mounting plate or the second mounting plate
By the pulling force toward two sides, to also can achieve functional image obtained in embodiment one.
Embodiment three:
Referring to Fig. 8~Figure 10, a kind of gate valve, including shell 15 and it is mounted on the intracorporal valve mechanism of shell, the valve knot
Structure includes valve seat 16, mounting base, first baffle 17, second baffle 18, elastic construction 19 and telescopic rod 20, is equipped in the middle part of valve seat logical
Hole, valve seat can be fixedly mounted in shell, the fixation of valve seat side can also be allowed to be fitted in shell inner surface, mounting base is placed in logical
It in hole and is fixedly mounted on valve seat, mounting base one end is fixed and connected with first baffle after elastic construction along fluid flow direction
Connect, the mounting base other end connects after connecting rod with second baffle along fluid flow direction, first baffle and second baffle it is big
It is small to match with through-hole.
Wherein, the mounting base includes support base 21 and multiple support plates 22, and each support plate one end and support base are fixed
Connection, each support plate other end are fixedly connected with valve seat；Elastic construction one end is fixedly connected with support base, and elastic construction is another
It is fixedly connected in the middle part of end and first baffle；Connecting rod one end is fixedly connected with support base, in the connecting rod other end and second baffle
Portion's connection.
When it is implemented, there are two types of modes for above structure.One is circular hole, connecting rod one end are equipped in the middle part of second baffle
It is fixedly connected with support base, the connecting rod other end passes through circular hole and is equipped with limited block 23 in its end, and second baffle can prop up
It slidably reciprocates in connecting rod between support seat and limited block.Another kind is that connecting rod is telescopic rod, and connecting rod one end and support base are solid
It is fixedly connected in the middle part of fixed connection, the connecting rod other end and second baffle.The valve seat be ring-type, the shell, first baffle and
Second baffle is round shape.
Referring to Fig.1 1, when spring deformation amount is 0.104, gate height 0.296, flow section area A is 0.92944,
Flow velocity v is 2.151833362, and groups of springs coefficient of elasticity K is 2184, and the coefficient of elasticity k of single spring is 2184, Fluid pressure F
It is 3634.85；When spring deformation amount is 0.144, gate height 0.256, flow section area A is 0.80384, and flow velocity v is
2.488057325, groups of springs coefficient of elasticity K are 14666, and the coefficient of elasticity k of single spring is 3826, and Fluid pressure F is
4859.49；When spring deformation amount is 0.204, gate height 0.196, flow section area A is 0.61544, and flow velocity v is
3.249707526, groups of springs coefficient of elasticity K are 57348, and the coefficient of elasticity k of single spring is 10654, and Fluid pressure F is
8290.07；When spring deformation amount is 0.244, gate height 0.156, flow section area A is 0.48984, and flow velocity v is
4.082965866, groups of springs coefficient of elasticity K are 131714, and the coefficient of elasticity k of single spring is 25318, and Fluid pressure F is
13086.43；The power hydraulic pressure F and amount of elastic deformation of above-mentioned gate valve can be in functional relation.
When it is implemented, the spring number of composition groups of springs structure is limited, and the function curve of function curve and Non-smooth surface, benefit
With higher mathematics differential thought, when contained spring is close unlimited more, which is ideal operation curve, in real work
Under state, possess a certain number of springs, job requirement can be met, it, can be original when operating condition precision prescribed is high
On the basis of reduce the coefficient of elasticity of single spring, increase the number of inner linear spring, reduce variable gradient, so as to improve whole
The operating accuracy of a groups of springs.
The course of work of above-mentioned gate valve is as follows:
The gate valve is mounted in flow path, first baffle is located at fluid inlet, and second baffle is located at fluid outlet；?
In process fluid flow, first baffle is by two power, and one is thrust of the fluid to first baffle, the other is elastic element
To the elastic force of first baffle, thrust is identical with fluid flow direction, and elastic force and fluid flow direction are on the contrary, two power maintain one
Under a equilibrium state；In process fluid flow, second baffle is by the thrust of fluid and the pulling force of telescopic rod, pulling force and stream
Body flow direction is on the contrary, two power maintain under an equilibrium state；Gate valve is in a stable aperture, fluid stream in shell
It is dynamic normal.
When fluid flow rate becomes larger suddenly, fluid increases the thrust of first baffle, and thrust is greater than elastic force, pushes first grade
Plate is close to valve seat, and as fluid flow rate increases, gatage can accordingly become smaller, and the aperture variation of gate is a kind of electrodeless continuous
It adjusts, is remained within a preset range by the flow of gate, gate can be allowed to maintain the aperture of a balance, to make
Fluid achievees the purpose that constant flow rate.
When fluid flow rate increases to preset maximum value, in the first plate washer inserted valve seat through-hole, the gate valve is closed at this time, can
To prevent from damaging the equipment after exporting, when flow velocity becomes smaller, elastic force of first plate washer in elastic mechanism because flow becomes larger suddenly
Effect is lower to pop up valve seat, and gate valve is opened at this time.
When fluid is flow backwards, second baffle inserted valve seat under the promotion for flowing backwards fluid, gate valve is closed at this time, can be with
Prevent flow from flowing backwards and damaging the equipment before entrance.By the gate valve, the size of flow can be effectively adjusted, there is structure letter
It is single, adjust it is easy, can constant flow rate and the advantages that can prevent overcurrent from flowing backwards.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to reality
Example is applied to describe the invention in detail, those skilled in the art should understand that, it can be to technical side of the invention
Case is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered in the present invention
Protection scope in.
Claims (7)
1. a kind of nonlinear spring group structure, it is characterised in that: cylindrical structure and tube-in-tube structure including mutual sheathing, the circle
Barrel structure includes the first mounting plate, the cylinder of multiple coaxial packages is vertically equipped on the first mounting plate, in two adjacent circles
It installs and has elastic component between cylinder, elastic element is equipped with installation end and free end along elastic direction, and elastic element installation end is fixed
It is mounted on the first mounting plate, elastic element free end is towards tube-in-tube structure；The tube-in-tube structure includes the second mounting plate, the
The sleeve of multiple coaxial packages is vertically equipped on two mounting plates, sleeve, which can slide, to be inserted between two adjacent cylinders and to phase
The elastic element answered is compressed.
2. a kind of nonlinear spring group structure according to claim 1, which is characterized in that the cylindrical structure further includes peace
Bar is filled, mounting rod one end is fixedly mounted in the middle part of the first mounting plate, and the mounting rod other end is towards tube-in-tube structure；The cylinder includes
From the first cylinder, the second cylinder, the 3rd cylinder and the 4th cylinder of center outward, the sleeve include from center outward first
Sleeve, second sleeve, 3rd sleeve and 4th sleeve, the elastic element include the first elastic element, the second elastic element and
Third elastic element；First elastic element is mounted between the first cylinder and the second cylinder, and the second elastic element is mounted on second
Between cylinder and the 3rd cylinder, third elastic element is mounted between the 3rd cylinder and the 4th cylinder, and first sleeve can be slided
It is sleeved on mounting rod, second sleeve, which can be slided, to be inserted between the first cylinder and the second cylinder and carry out to the first elastic element
Compression, 3rd sleeve, which can be slided, to be inserted between the second cylinder and the 3rd cylinder and compresses to the second elastic element, third
Sleeve, which can slide, to be inserted between the 3rd cylinder and the 4th cylinder and compresses to third elastic element.
3. a kind of nonlinear spring group structure according to claim 2, which is characterized in that first elastic element,
Two elastic elements are identical with the length of third elastic element, and their own free end is in same upright plane；Described first
Sleeve, second sleeve, the length of 3rd sleeve and 4th sleeve become larger or become smaller.
4. a kind of nonlinear spring group structure according to claim 2, which is characterized in that the first sleeve, second set
Cylinder, 3rd sleeve are identical with the length of 4th sleeve, and one end of each towards cylindrical structure is in same upright plane；Institute
The length for stating the first elastic element, the second elastic element and third elastic element becomes larger or becomes smaller.
5. a kind of nonlinear spring group structure according to any one of claims 1 to 4, which is characterized in that the elastic element
Select helical spring.
6. a kind of application method of nonlinear spring group structure, which comprises the following steps:
S1: the coefficient of elasticity of all elastic element in groups of springs structure is identical, if coefficient of elasticity is K；
S2: when the first mounting plate or the second mounting plate are under pressure, tube-in-tube structure is inserted in cylindrical structure, 4th sleeve and
Three resilient element contacts simultaneously compress third elastic element, remaining elastic element keeps free state, at this time coefficient of elasticity
For K；As tube-in-tube structure continues to be set in cylindrical structure, 3rd sleeve and the second resilient element contacts and to the second elastic element
It is compressed, the first elastic element keeps free state, and coefficient of elasticity is 2K at this time；
S3: assuming that elastic element number is unlimited, and so on, as tube-in-tube structure is gradually inserted in cylindrical structure, groups of springs structure
Coefficient of elasticity be gradually increased so that the elastic force of groups of springs structure and amount of elastic deformation are in functional relation.
7. a kind of application method of nonlinear spring group structure according to claim 6, which is characterized in that be according to elasticity
Several differences, the elastic force and amount of elastic deformation of groups of springs structure can be in 1.5 functional relations, quadratic function relation or three
Secondary functional relation.
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