CN108710775A - A kind of shock mitigation system and design method based on auditory ossicular chain driving mechanism - Google Patents
A kind of shock mitigation system and design method based on auditory ossicular chain driving mechanism Download PDFInfo
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- CN108710775A CN108710775A CN201810855456.4A CN201810855456A CN108710775A CN 108710775 A CN108710775 A CN 108710775A CN 201810855456 A CN201810855456 A CN 201810855456A CN 108710775 A CN108710775 A CN 108710775A
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- 230000035939 shock Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000000116 mitigating effect Effects 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 238000013461 design Methods 0.000 title claims abstract description 18
- 210000001050 stape Anatomy 0.000 claims abstract description 86
- 210000002331 malleus Anatomy 0.000 claims abstract description 72
- 241000878128 Malleus Species 0.000 claims abstract description 69
- 210000001785 incus Anatomy 0.000 claims abstract description 69
- 210000003041 ligament Anatomy 0.000 claims abstract description 28
- 238000004088 simulation Methods 0.000 claims abstract description 27
- 238000013016 damping Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 23
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims description 51
- 230000001133 acceleration Effects 0.000 claims description 46
- 210000001664 manubrium Anatomy 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 239000006096 absorbing agent Substances 0.000 claims description 7
- 210000003027 ear inner Anatomy 0.000 claims description 7
- 210000003128 head Anatomy 0.000 claims description 5
- 210000003205 muscle Anatomy 0.000 claims description 5
- 230000006872 improvement Effects 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 241000219000 Populus Species 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
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- 230000003044 adaptive effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
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- 238000005457 optimization Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241000153246 Anteros Species 0.000 description 1
- 241000135309 Processus Species 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
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Abstract
The present invention provides a kind of shock mitigation system and design method based on auditory ossicular chain driving mechanism.The method of the present invention includes the following steps：S1, phonophore threedimensional model is established by three-dimensional software；S2, the material for determining auditory ossicular chain and the angles α for vibrating the good hammer anvil joint rotation axis of transmission effect；S3, drawn phonophore model is imported into dynamics and kinematic simulation software and adds preset material to the ligament around malleus, incus, stapes and phonophore, to set up complete ear bones chain model；S4, connection relation and relative position by manufacturing each component in in-kind simulation auditory ossicular chain are tested and are improved until obtaining the good shock mitigation system of damping effect.The present invention can preferably protect work in-plant equipment and the safety of construction personnel, while can also apply and allow the damping performance of seat more preferable in traffic and transport field.
Description
Technical field
The present invention relates to shock-absorption device technical fields, specifically, more particularly to a kind of based on auditory ossicular chain driving mechanism
Shock mitigation system and design method.
Background technology
With the development of society and economy, requirement of the people for live and work quality is also higher and higher.People now
It not only requires safe and reliable, and requires journey comfortable, the research and development of damper seem especially important.Damper, which can play, to be subtracted
Effect that is small or cutting down influence of the vibration to equipment and personnel so that certain equipment and personnel rise from the influence of bad vibration
To the effect of protection equipment and personnel normal work and safety, therefore it is widely used in the frequent landing etc. of various machineries.But
Existing damper there are problems that, such as：Conventional oil air damper although simple in structure, convenient for safeguarding, but working life
Short, technological requirement is high and needs to spend with regard to the relatively large number of time due to overhauling and safeguarding.For certain specific occasion dampers,
Such as adjustable-damping shock absorber, also have complicated, cost is higher, does not have the shortcomings that generality.
Invention content
According to technical problem set forth above, and provide a kind of shock mitigation system design side based on auditory ossicular chain driving mechanism
Method, the present invention have fast response time according to auditory ossicular chain vibration insulating system, and adaptive adjustment capability is strong, are easy to introduce control, to low
Frequency incudes strong, and the energy of high-frequency vibration is easy decaying, sound conduction function little with the age variation the characteristics of, to bionical auditory ossicular chain
The damper produced is designed and improves, and obtained damper internal structure is simple, being capable of effective protection equipment and work
The personal safety of personnel.
The technological means that the present invention uses is as follows：
A kind of shock mitigation system design method based on auditory ossicular chain driving mechanism, includes the following steps：
S1, phonophore threedimensional model is established by three-dimensional software, wherein the phonophore includes malleus, incus and stapes；
S2, it is adjusted by the elastic damping ratio to the muscle and ligament around phonophore, test stirrup incus Displacement Ratio,
Stirrup incus speed ratio and stirrup incus acceleration ratio, so that it is determined that auditory ossicular chain surrounding ligaments material, by being obtained in experiment and document
Malleus, incus and stapes material property determine the material of malleus, incus and stapes, by hammer anvil joint rotation axis
The angles α are adjusted, test stirrup incus Displacement Ratio, stirrup incus speed ratio, stirrup incus acceleration ratio, so that it is determined that vibration transmission effect
The good angles α；
S3, drawn phonophore model is imported into dynamics and kinematic simulation software and to malleus, incus,
Ligament around stapes and phonophore adds preset material, and the company between malleus, incus and stapes is determined according to the preferred angles α
Relationship is connect, to set up complete ear bones chain model；
S4, connection relation and relative position by manufacturing each component in in-kind simulation auditory ossicular chain, and add for protecting
The shell of the simulation inner ear function of auditory ossicular chain gradually tests out by applying external force to material object and designs unreasonable every defect
And it is correspondingly improved and is simplified until obtaining the good shock mitigation system of damping effect.
Further, in the step S3, following steps are additionally provided with after setting up complete ear bones chain model：
By to manubrium mallei applied force, obtaining the changing value of stapes displacement and acceleration, subtract so that it is determined that phonophore has
Shake effect.
Further, it in the step S3, determines and is additionally provided with following steps after phonophore has damping effect：
By obtaining stapes displacement to manubrium mallei applied force beating the addition of anvil joint and simulate various types of kinematic pairs
And the changing value of acceleration, so that it is determined that simulation stapes moves suitable pair.
Further, it in the step S3, determines and is additionally provided with following steps after simulation stapes moves suitable pair：To described
Ear bones chain model carries out the situation of change emulation of hammer anvil displacement under different frequency, obtains displacement, speed and the acceleration of hammer stapes
Stable frequency.
Further, in the step S4, the improvement includes：The manubrium mallei in the malleus portion of damper is changed to and human ear
It is the different vibration contact surface of malleus, the center of the cross section of manubrium mallei and stapes is centrally disposed on the same line.
The present invention also provides a kind of shock mitigation systems based on auditory ossicular chain driving mechanism, including：Bionical human ear auditory ossicular chain
The damper shell of absorber main body and bionical human ear inner ear, the absorber main body are assemblied in the damper shell, institute
It includes bionical malleus portion, bionical incus portion and bionical stapes portion to state absorber main body, and the bionical malleus portion includes upper and lower bottom surface
All have the hammer handle portion of default radian, the tup portion consistent with human ear malleus head configuration and connection hammer handle subordinate bottom surface with
The interconnecting piece in tup portion, the bionical incus portion include and the matched hammer anvil joint portion of the hammer head shape and hammer anvil joint portion
That extends has the long process of incus portion of default dog-ear, and the bionical stapes portion includes the anvil stirrup being connected with the long process of incus portion
Joint portion and stapes footplate portion, the horizontal direction after the tup portion is connect with hammer anvil joint portion open up the logical of adaptation connecting rod
Hole, the connecting rod pass through bionical malleus portion and bionical incus portion to be fixed on the damper shell of both sides, the incudostapedial joint
Portion is connect with the stapes footplate portion by spring.
Further, the center of the cross section in the hammer handle portion and the center in bionical stapes portion are located along the same line.
Compared with the prior art, the present invention has the following advantages：
The present invention to auditory ossicular chain driving mechanism by carrying out modeling analysis, by phonophore and Surrounding muscles, ligament
Simulation, it is bionical go out the strong shock mitigation system based on auditory ossicular chain driving mechanism of a set of fast response time, adaptive adjustment capability, pass through
Positional structure, rotating manner between each component are adjusted, to obtain the optimal solution being suitable in production and living, protection
The safety of work in-plant equipment and construction personnel, while can also apply and allow the damping performance of seat more preferable in traffic and transport field,
Passenger more comfortably feels at ease.
The present invention can be widely popularized in shock-absorption device field based on the above reasons.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is that the present invention is based on the shock mitigation system design method flow charts of auditory ossicular chain driving mechanism.
Fig. 2 is three-dimensional modeling figure of the present invention to phonophore emulation, wherein (a) is the three-dimensional modeling figure of malleus, is (b)
The three-dimensional modeling figure of incus is (c) the three-dimensional modeling figure of stapes, is (d) the phonophore simulation model figure of entirety.
After phonophore is given material properties by Fig. 3 for the present invention, to the given input power in the bright bottom of malleus, obtained malleus,
Stapes displacement and acceleration change figure, wherein (a) is the variation oscillogram of malleus displacement, is (b) the variation waveform of stapes displacement
Figure is (c) the variation oscillogram of malleus acceleration, is (d) the variation oscillogram of stapes acceleration.
Fig. 4 is the k/c of ligament of the present invention when being 10, gives fixed frequency, and obtained malleus, stapes displacement and acceleration become
Change figure, wherein (a) is the variation oscillogram of malleus displacement, is (b) the variation oscillogram of stapes displacement, (c) is malleus acceleration
Variation oscillogram, (d) be stapes acceleration variation oscillogram.
When Fig. 5 is the variation at the angles hammer anvil joint rotation axis α of the present invention, obtained malleus, stapes displacement and acceleration become
Change figure, wherein (a) is the variation oscillogram of malleus displacement, is (b) the variation oscillogram of stapes displacement, (c) is malleus acceleration
Variation oscillogram, (d) be stapes acceleration variation oscillogram.
When Fig. 6 is that hammer anvil joint of the present invention uses revolute pair, obtained malleus, stapes displacement and acceleration change figure,
In, (a) is the variation oscillogram of malleus displacement, is (b) the variation oscillogram of stapes displacement, is (c) variation of malleus acceleration
Oscillogram is (d) the variation oscillogram of stapes acceleration.
Fig. 7 is comparison diagram when hammer anvil joint of the present invention uses revolute pair and elastomer, wherein (a) (b) (c) (d) is to adopt
With revolute pair, (e) (f) (g) (h) is using elastomer, and (a) (e) is the variation oscillogram of malleus displacement, and (b) (f) is stapes position
The variation oscillogram of shifting, (c) (g) is the variation oscillogram of malleus acceleration, and (d) (h) is the variation oscillogram of stapes acceleration.
Fig. 8 is the variation diagram of hammer anvil parameter under different frequency in kinetic model of the present invention, wherein (a) is different frequency
The variation diagram of lower hammer anvil Displacement Ratio is (b) variation diagram of hammer anvil speed ratio under different frequency, is (c) hammer anvil position under different frequency
The variation diagram of acceleration.
Fig. 9 is the simulation model figure of shock mitigation system of the present invention, wherein (a) is bionical malleus portion, is (b) bionical incus portion,
(c) it is the incudostapedial joint portion in bionical stapes portion, is (d) the stapes footplate portion in bionical stapes portion.
Figure 10 is a kind of shock mitigation system schematic diagram based on auditory ossicular chain driving mechanism of the present invention.
Figure 11 is the shock mitigation system explosion diagram that the present invention has bionical ear bones chain structure.
In figure：1, hammer handle portion；2, interconnecting piece；3, tup portion；4, hammer anvil joint portion；5, long process of incus portion；6, incudostapedial joint
Portion；7, stapes footplate portion；8, connecting rod.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
Term " comprising " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, packet
Contained series of steps or unit process, method, system, product or equipment those of be not necessarily limited to clearly to list step or
Unit, but may include not listing clearly or for the intrinsic other steps of these processes, method, product or equipment or
Unit.
When phonophore is acted on by moderate strength acoustic pressure, stapes footplate can be vibrated along the vertical axis (short axle) of its rear foot,
When the sound intensity is close to the threshold of pain, stapes footplate can be in swing rotation along its antero posterior axis (long axis).This not only can be very good to protect
Shield auditory ossicular chain escapes injury, and can also greatly reduce or remit the impact that strong vibration brings oval window, protect inner ear from strong
The injury brought is shaken, the present invention is based on the good characteristic in terms of these dampings of phonophore, and designs a set of be based on
The shock mitigation system design method of auditory ossicular chain driving mechanism.
As shown in Figure 1, the present invention provides a kind of shock mitigation system design methods based on auditory ossicular chain driving mechanism, including such as
Lower step：
S1, it is established by three-dimensional software shown in phonophore threedimensional model such as Fig. 2 (d), wherein the phonophore includes as schemed
Malleus shown in 2 (a), incus and the stapes as shown in Fig. 2 (c) as shown in Fig. 2 (b)；
The physical and mechanical parameter of phonophore continue to use foreign scholar by experiment measure as a result, in model assign malleus, incus,
Stapes etc. is taken as 0.3 with different material properties, Poisson's ratio, wherein according to middle ear finite element model material parameter such as 1 institute of table
Show, by Literature Consult, the moulded dimension of human ear phonophore is as shown in table 2.
Table 1
Table 2
Phonophore is given into material properties, the bright bottom of malleus give input power value be P (t)=50*sin (wt) just
String function measures and beats the Displacement Ratio of incus, acceleration ratio, malleus, stapes displacement variation such as Fig. 3 (a) and 3 (b) shown in, hammer
Bone, variation such as Fig. 3 (c) and Fig. 3 (d) of stapes acceleration are shown.Simulation result shows：The model of phonophore substantially conforms to listen small
The numeric ratio of bone, movement are also relatively more stablized.
S2, it is adjusted by the elastic damping ratio to the muscle and ligament around phonophore, test stirrup incus Displacement Ratio,
Stirrup incus speed ratio and stirrup incus acceleration ratio, so that it is determined that auditory ossicular chain surrounding ligaments material, by being obtained in experiment and document
Malleus, incus and stapes material property determine the material of malleus, incus and stapes, by hammer anvil joint rotation axis
The angles α are adjusted, test stirrup incus Displacement Ratio, stirrup incus speed ratio, stirrup incus acceleration ratio, so that it is determined that vibration transmission effect
The good angles α；
Ligament is connected to around phonophore, and ligament plays the position of fixed bone and listens reduction in the phonophore course of work
Effect, experiment is difficult to measure the true material parameter of ligament, and parameter is nonlinear.It is accurate there are no determining so far
Material parameter.The poplar property modulus of ligament is generally value range in pertinent literature, for the poplar property that ligament in this determining model is best
Modulus, the damping that the application gives ligament is 10, and the ratio for being 1,5,10,50,100 with the elastic damping ratio of ligament is this model
Simulation parameter respectively, with stirrup incus Displacement Ratio, stirrup incus speed ratio, stirrup incus acceleration ratio inspection target.Given fixed frequency,
Experimental result is as shown in table 3：
Table 3
When the k/c of ligament is 10, shown in the displacement of stirrup incus such as Fig. 4 (a), Fig. 4 (b), stirrup incus acceleration such as Fig. 4 (c), figure
Shown in 4 (d), it is 20Hz to give fixed frequency.
Simulation result shows：When the ratio of the k/c of ligament is 100 and 50, incostapedial Displacement Ratio, speed ratio and angle add
Velocity ratio is larger, and downward trend is presented in the displacement of the stapes in high frequency, this is likely due to the mistake of the k/c of ligament
Greatly, caused by damping not enough.When the ratio of the k/c of ligament is 1 and 5, incostapedial Displacement Ratio, speed ratio and angular acceleration
Ratio is smaller, this is likely due to the too small of the k/c of ligament and to sum up works as ligament caused by spring can not play control action
K/c be 10 when movement ossiculum it is best.
There is document to show phonophore during the work time, auditory ossicular chain can be with before malleus neck between ligament and processus brevis incudis
It is rotated for lever shaft on line.Using the kinematic axis of auditory ossicular chain as fulcrum, manubrium mallei and long process of incus can be regarded as lever respectively
Long and short two-arm.In the both sides of kinematic axis, the quality of phonophore is roughly equal.But there is no document for the angular dimension of axis
It is mentioned to, to determine influence of this model hammer anvil joint angles rotation axis α to phonophore dynamical system vibration damping, the application is with hammer anvil
It is this model difference simulation parameter that the joint angles rotation axis α, which are -10,0,10,20,30, with stirrup incus Displacement Ratio, stirrup incus speed
Than, stirrup incus acceleration ratio inspection target.Given fixed frequency, experimental result are as shown in table 4：
Table 4
By changing the hammer anvil joint angles rotary shaft α, variation oscillogram such as Fig. 5 (a) of the malleus displacement of fit analysis is counted
It is shown, shown in variation oscillogram such as Fig. 5 (b) of stapes displacement, shown in variation oscillogram such as Fig. 5 (c) of malleus acceleration, stapes
Shown in variation oscillogram such as Fig. 5 (d) of acceleration.
Simulation result shows：When the hammer anvil joint angles rotation axis α are -10,1,20,30, incostapedial Displacement Ratio, speed ratio
With angular acceleration than damping effect less as the hammer anvil joint angles rotation axis α be 30 when effect, this is because work as hammer anvil joint
It is calculated from lever rule when the angles rotation axis α are -10,1.This is because when the hammer anvil joint angles rotation axis α are 20,30 degree
When, ligament, spring can not play the role of it, and the vibration transmission effect of incus is bad, larger in the transmission otherness of different frequency bands.
S3, drawn phonophore model is imported into dynamics and kinematic simulation software and to malleus, incus,
Ligament around stapes and phonophore adds preset material, and the company between malleus, incus and stapes is determined according to the preferred angles α
Relationship is connect, to set up complete ear bones chain model；By to manubrium mallei applied force, obtaining stapes displacement and the variation of acceleration
Value, so that it is determined that phonophore has damping effect, by beating the various types of kinematic pairs of anvil joint addition simulation, to malleus
Handle applied force obtains the changing value of stapes displacement and acceleration, so that it is determined that simulation stapes moves suitable pair, to the ear bones
Chain model carries out the situation of change emulation of hammer anvil displacement under different frequency, and displacement, speed and the acceleration for obtaining hammer stapes are stablized
Frequency.
It is P (t)=50*sin (wt) in the value of the bright given force of malleus, beats anvil joint and use revolute pair, malleus, stapes displacement
Variation such as Fig. 6 (a), 6 (b) shown in, malleus, stapes acceleration variation such as Fig. 6 (c), 6 (d) shown in, simulation result shows to listen
Ossiculum has when inputted vibration signal is after the transmission of auditory ossicular chain, and hammer stapes Displacement Ratio puts small, the function of acceleration ratio amplification.This
Place, which then demonstrates phonophore, damping effect.
The value that input power is given in the bright bottom of malleus is the SIN function of P (t)=50*sin (wt), and hammer anvil joint, which uses, to be turned
When dynamic secondary, malleus, variation such as Fig. 7 (a), 7 (b) of stapes displacement are shown, malleus, variation such as Fig. 7 (c) of stapes acceleration, 7
(d) shown in,
When hammer anvil joint uses elastomer, malleus, variation such as Fig. 7 (e), 7 (f) of stapes displacement are shown, and malleus, stapes add
Shown in the variation of speed such as Fig. 7 (g), 7 (h).
According to simulation result as can be seen that when beating anvil joint addition flexible body and simulating the tough of joint with revolute pair
It is two different effects when band.According to from the point of view of the integral form of movement obviously beat anvil joint addition simulation revolute pair effect
Fruit is more preferable.By the method for emulation at incudostapedial joint, after having attempted many kinematic pairs, discovery prismatic pair is best simulation
The pair of stapes movement.
The damped coefficient 10 and coefficient of elasticity 100 of phonophore surrounding ligaments have been obtained in above work.And hammer anvil
10 ° of the joint angles rotation axis α.Hammer anvil joint selects revolute pair, sliding pair is selected at incudostapedial joint, the size of given force is F
(t)=sin (2*pi*t).Measurinng frequency is the stirrup incus Displacement Ratio of 1-1000hz respectively, stirrup incus speed ratio, stirrup incus accelerate
Degree ratio.The situation of change emulation of hammer anvil displacement under different frequency is as shown in Fig. 8 (a)；The variation of hammer anvil bit rate under different frequency
As shown in Fig. 8 (b)；Under different frequency shown in the variation of hammer anvil positioner acceleration such as Fig. 8 (c), in figure, malleus associated change curve
It is most of to be higher than incus associated change curve.
Simulation result shows：When frequency is when within 400Hz, the displacement of stapes, speed are hammered into shape, acceleration maintains substantially
Stable ratio, when more than 400Hz, at this time muscle plays control action, the speed of stapes, and acceleration is obviously reduced.
It is good by the effect for measuring the vibration damping in which frequency range, the variation hammer anvil acceleration Displacement Ratio of any band frequency under different frequency
Change small, bionical damper at work can far away from resonance region, when making work in this frequency band the operation is stable.
S4, connection relation and relative position by manufacturing each component in in-kind simulation auditory ossicular chain, and add for protecting
The shell of the simulation inner ear function of auditory ossicular chain gradually tests out by applying external force to material object and designs unreasonable every defect
And it is correspondingly improved and is simplified until obtaining the good shock mitigation system of damping effect.
The improvement includes：By the manubrium mallei in the malleus portion of damper be changed to the vibration contact surface different from human ear malleus,
The center of the cross section of manubrium mallei and stapes is centrally disposed on the same line.
By improvement and intensive analysis it is found that malleus is maximum in the bright adaptability to changes being subject between head of malleus of malleus, have very much
It may be at work due to ability of being lost the job by impact force suddenly.The adaptability to changes that the bright middle part of incus is subject to is maximum,
It bright to malleus should add to optimize in making, such as increase the thickness etc. of incus.Stapes will not deform substantially.Shock mitigation system
It when stress is 10N, will not strain substantially, but malleus is bright and head of malleus is most weak link, needs system
Optimization.
According to optimization, a kind of shock mitigation system based on auditory ossicular chain driving mechanism provided by the present application is obtained, such as Fig. 9-
Shown in 11, including：The damper shell of the absorber main body of bionical human ear auditory ossicular chain and bionical human ear inner ear, the damper master
Body is assemblied in the damper shell, and the absorber main body includes bionical malleus portion, bionical incus portion and bionical stapes portion,
The bionical malleus portion includes that upper and lower bottom surface all has the hammer handle portion 1 of default radian, the hammer consistent with human ear malleus head configuration
Head 3 and the interconnecting piece 2 for connecting hammer handle subordinate bottom surface and tup portion, the bionical incus portion includes and tup portion shape
What the matched hammer anvil joint portion 4 of shape and hammer anvil joint portion extended has the long process of incus portion 5 of default dog-ear, the bionical stapes
Portion includes the incudostapedial joint portion 6 being connected with the long process of incus portion 5 and stapes footplate portion 7, the tup portion 3 and hammer anvil joint portion
Horizontal direction after 4 connections opens up the through-hole of adaptation connecting rod 8, and the connecting rod 8 passes through bionical malleus portion and bionical incus portion
It is fixed on the damper shell of both sides, the incudostapedial joint portion 6 is connect with the stapes footplate portion 7 by spring.
The center of the cross section in the hammer handle portion 1 and the center in bionical stapes portion are located along the same line.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (7)
1. a kind of shock mitigation system design method based on auditory ossicular chain driving mechanism, which is characterized in that include the following steps：
S1, phonophore threedimensional model is established by three-dimensional software, wherein the phonophore includes malleus, incus and stapes；
S2, it is adjusted by the elastic damping ratio to the muscle and ligament around phonophore, test stirrup incus Displacement Ratio, stirrup anvil
Bone speed ratio and stirrup incus acceleration ratio, so that it is determined that auditory ossicular chain surrounding ligaments material, passes through the hammer tested with obtained in document
The material property of bone, incus and stapes determines the material of malleus, incus and stapes, passes through the angles α to hammer anvil joint rotation axis
It is adjusted, test stirrup incus Displacement Ratio, stirrup incus speed ratio, stirrup incus acceleration ratio, so that it is determined that vibration transmission effect is good
The angles α；
S3, drawn phonophore model is imported into dynamics and kinematic simulation software and to malleus, incus, stapes
And the ligament around phonophore adds preset material, determines that the connection between malleus, incus and stapes is closed according to the preferred angles α
System, to set up complete ear bones chain model；
S4, connection relation and relative position by manufacturing each component in in-kind simulation auditory ossicular chain, and add for protecting ear bones
The shell of the simulation inner ear function of chain gradually tests out the unreasonable every defect of design and goes forward side by side by applying external force to material object
Row is correspondingly improved and simplifies until obtaining the good shock mitigation system of damping effect.
2. the shock mitigation system design method according to claim 1 based on auditory ossicular chain driving mechanism, which is characterized in that described
In step S3, following steps are additionally provided with after setting up complete ear bones chain model：By to manubrium mallei applied force, obtaining stapes displacement
And the changing value of acceleration, so that it is determined that phonophore has damping effect.
3. the shock mitigation system design method according to claim 2 based on auditory ossicular chain driving mechanism, which is characterized in that described
In step S3, determines and be additionally provided with following steps after phonophore has damping effect：By beat anvil joint addition simulation it is various
The kinematic pair of type obtains the changing value of stapes displacement and acceleration to manubrium mallei applied force, so that it is determined that simulation stapes movement
Suitable pair.
4. the shock mitigation system design method according to claim 3 based on auditory ossicular chain driving mechanism, which is characterized in that described
In step S3, determines and be additionally provided with following steps after simulation stapes moves suitable pair：Different frequencies are carried out to the ear bones chain model
The situation of change of hammer anvil displacement under rate emulates, and obtains the frequency that displacement, speed and the acceleration of hammer stapes are stablized.
5. the shock mitigation system design method according to claim 1 based on auditory ossicular chain driving mechanism, which is characterized in that described
In step S4, the improvement includes：By the manubrium mallei in the malleus portion of damper be changed to the vibration contact surface different from human ear malleus,
The center of the cross section of manubrium mallei and stapes is centrally disposed on the same line.
6. a kind of shock mitigation system based on auditory ossicular chain driving mechanism, which is characterized in that including：The damper of bionical human ear auditory ossicular chain
The damper shell of main body and bionical human ear inner ear, the absorber main body are assemblied in the damper shell, the damping
Device main body includes bionical malleus portion, bionical incus portion and bionical stapes portion, and the bionical malleus portion includes that upper and lower bottom surface all has
The hammer handle portion (1) of default radian, the tup portion (3) consistent with human ear malleus head configuration and connect hammer handle subordinate bottom surface and
The interconnecting piece (2) in tup portion, the bionical incus portion include and the matched hammer anvil joint portion (4) of the hammer head shape and hammer anvil
What joint portion extended has the long process of incus portion (5) of default dog-ear, and the bionical stapes portion includes and the long process of incus portion
(5) connected incudostapedial joint portion (6) and stapes footplate portion (7), the tup portion (3) connect with hammer anvil joint portion (4) after water
Square to the through-hole for opening up adaptation connecting rod (8), the connecting rod (8) passes through bionical malleus portion and bionical incus portion to be fixed on two
On the damper shell of side, the incudostapedial joint portion (6) is connect with the stapes footplate portion (7) by spring.
7. the shock mitigation system according to claim 6 based on auditory ossicular chain driving mechanism, which is characterized in that the hammer handle portion
(1) center of cross section and the center in bionical stapes portion are located along the same line.
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