CN108827783B - A kind of more elements of livestock meat are glutinous to play method for establishing model - Google Patents
A kind of more elements of livestock meat are glutinous to play method for establishing model Download PDFInfo
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- CN108827783B CN108827783B CN201810636025.9A CN201810636025A CN108827783B CN 108827783 B CN108827783 B CN 108827783B CN 201810636025 A CN201810636025 A CN 201810636025A CN 108827783 B CN108827783 B CN 108827783B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
Abstract
The invention belongs to technical field of food detection, are related to a kind of livestock meat viscoelasticity lossless detection method, and in particular to a kind of more elements are glutinous to play model foundation and its glutinous method for playing parameter and determining.Specific steps are as follows: first with the acquisition of livestock meat viscoelasticity nondestructive detection system, the strain data of calculating sample to be tested；Then more feature models are selected according to the deformation behaviour of sample to be tested, by different more feature models in conjunction with different data fitting algorithm, data fitting is carried out to strain data, establish the glutinous bullet model of the more elements of several livestock meats；The finally fitting effect of the glutinous bullet model of the more elements of more several livestock meats selects the more elements of best livestock meat are glutinous to play model according to actual needs, and calculates glutinous bullet parameter.Final lossless, the quick detection realized to livestock meat viscoelasticity.
Description
Technical field
The invention belongs to technical field of food detection, are related to a kind of livestock meat viscoelasticity lossless detection method, and in particular to
A kind of glutinous model foundation and its glutinous determining method of parameter that plays of playing of more elements is, it can be achieved that the viscoelasticity harmless quantitative of livestock meat is examined
It surveys.
Background technique
For a long time, livestock meat full of nutrition is all a kind of food being popular in countries in the world.In recent years, meat
Industry development is rapid, occupies an important position in the world.With the rapid growth of economic level, demand of the consumer to livestock meat
It is increasing, especially high protein, the beef of low fat, mutton etc..
The viscous-elastic behaviour of food is prediction one of texture of food and the important physical property of quality, and the viscoelasticity of food is
Emphasis as the research of many researchers.Currently, the research of viscoelasticity focuses mostly in stress relaxation characteristics both at home and abroad, about
The research of creep properties is less；The research of domestic and international viscoelasticity mostly uses three elements, four-element model, three elements, four element moulds
Type is basic model, can simplify problem, but error is larger.
Against the above deficiency, for the viscous-elastic behaviour of more scientific ground quantitative detection livestock and poultry meat, the invention proposes want more
Element is glutinous to play model foundation and its glutinous method for playing parameter and determining.
Summary of the invention
In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of glutinous bullet moulds of the more elements of livestock meat
Type is established and its glutinous method for playing parameter and determining, to realize the harmless quantitative detection of livestock meat viscoelasticity.
To achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of more elements of livestock meat are glutinous to play method for establishing model, includes the following steps:
The preparation of S1, livestock meat sample: the meat at the same position of livestock and poultry is obtained as sample, sample is cut and is shaped as ruler
Very little consistent several samples to be tested 2；
The acquisition of S2, strain data: under same time point, same external environment, using having merged air-flow and Laser Measuring
Livestock meat viscoelasticity nondestructive detection system away from technology carries out gas shock to sample to be tested 2；
By the lifting of lifting platform 1, so that the surface of sample to be tested 2 is bonded with nozzle；
Sense organ judgement for livestock meat, generally leans on the chewing of tooth or is pressed with finger, the period is all 2~3s；
In order to make sample to be tested 2 show viscoelasticity, the gas shock duration t under the action of gas shock1
It is set as no less than 2s, this stage is air-flow load phase；
Meanwhile acquiring deformation data (the deformation letter of sample to be tested 2 in real time using livestock meat viscoelasticity nondestructive detection system
Breath), i.e. the data that change over time of deflection；
After gas shock, in order to observe and record the deformation behaviour when 2 stabilization of sample to be tested, in air-flow
After impact, continue to acquire deformation data, the time for continuing to acquire deformation data is no less than 5s, this stage is that deformation is extensive
The multiple stage；
After the completion of the deformation data acquisition to all samples to be tested 2, is calculated by computer 7, obtain strain data, it is described
Strain data is the strain value ε (t) that sample to be tested 2 changes over time, and obtains strain-time graph, wherein t is time change
Amount；
The determination of S3, constant stress value σ: gas shock causes sample to be tested 2 to deform on the surface of sample to be tested 2, according to
The active force and reaction force principle of power replace constant stress value σ using atmospheric pressure value (air-flow pressure force value), carry out subsequent analysis；
Since there are atmospheric pressure losts, the atmospheric pressure value on 2 surface of sample to be tested is acted on using difference gauge detection；
S4, more element functional expressions are established, obtain that the more elements of livestock meat are glutinous to play model: first pass through obtained in step S2 it is to be measured
Strain-time graph of sample 2, after observing gas shock, the deformation behaviour of sample to be tested 2；Further according to deformation behaviour, choosing
More feature models are taken, more element functional expressions are established, then using the more element functional expressions established to the strain data in step S2
Using data fitting algorithms, data fitting is carried out；According to the fitting coefficient of acquisition, livestock meat is obtained by more element functional expressions and is wanted more
Element is glutinous to play model；
After the deformation behaviour is gas shock, whether sample to be tested 2 can restore completely, if can restore completely,
Then illustrating sample to be tested 2, there is no residual deformations；If cannot restore completely, illustrate that there are residual deformations for sample to be tested 2；
More feature models include the more feature models of odd number type and the more feature models of even number type；
If residual deformation is not present in sample to be tested 2, chooses odd number type more feature models and data fitting is carried out to strain data；
If there are residual deformations for sample to be tested 2, chooses even number type more feature models and data fitting is carried out to strain data；
The element quantity of the more feature models of odd number type is odd number, and the element quantity of the more feature models of even number type is
Even number；
The more feature models of odd number type include three-element model, five-factor model and seven feature models；The even number type
More feature models include four-element model, six feature models and eight feature models；
The element quantity of the three-element model is three, and the element quantity of the five-factor model is five, seven element
The element quantity of model is seven；The element quantity of the four-element model is four, and the element quantity of six feature model is six,
The element quantity of eight feature model is eight；
When choosing three-element model, it is quasi- to the strain data progress data of air-flow load phase to establish three elements functional expression
It closes, obtains fitting coefficient, the glutinous bullet model of livestock meat three elements is obtained by three elements functional expression, and extract instant elastic modulus E1、
Elastic modulus E2With viscosity η2；
When choosing five-factor model, it is quasi- to the strain data progress data of air-flow load phase to establish five elements functional expression
It closes, obtains fitting coefficient, the glutinous bullet model of livestock meat five elements is obtained by five elements functional expression, and extract instant elastic modulus E1、
Elastic modulus E2, elastic modulus E3, viscosity η2With viscosity η3；
When choosing seven feature models, it is quasi- to the strain data progress data of air-flow load phase to establish seven element functional expressions
It closes, obtains fitting coefficient, obtain the glutinous bullet model of seven element of livestock meat by seven element functional expressions, and extract instant elastic modulus E1、
Elastic modulus E2, elastic modulus E3, elastic modulus E4, viscosity η2, viscosity η3With viscosity η4；
When choosing four-element model, it is quasi- to the strain data progress data of air-flow load phase to establish four element functional expressions
It closes, obtains fitting coefficient, obtain the glutinous bullet model of four element of livestock meat by four element functional expressions, and extract instant elastic modulus E1、
Elastic modulus E2, viscosity η1With viscosity η2；
When choosing six feature models, it is quasi- to the strain data progress data of air-flow load phase to establish six element functional expressions
It closes, obtains fitting coefficient, obtain the glutinous bullet model of six element of livestock meat by six element functional expressions, and extract instant elastic modulus E1、
Elastic modulus E2, elastic modulus E3, viscosity η1, viscosity η2With viscosity η3；
When choosing eight feature models, it is quasi- to the strain data progress data of air-flow load phase to establish eight element functional expressions
When conjunction, fitting coefficient is obtained, obtains the glutinous bullet model of eight element of livestock meat by eight element functional expressions, and extract instant elastic modulus
E1, elastic modulus E2, elastic modulus E3, elastic modulus E4, viscosity η1, viscosity η2, viscosity η3With viscosity η4；
The element quantity for increasing more feature models chooses more feature models of corresponding element quantity, establishes corresponding
The more elements of livestock meat are glutinous to play model, and extracts glutinous bullet parameter；
S5, according to different element quantity is chosen, determine the more feature models chosen, and from different data fitting algorithms
Combination, establishes several more element functional expressions, obtains the glutinous bullet model of the more elements of several livestock meats；
According to actual needs, the fitting effect for playing model glutinous to several more elements of livestock meat is compared, from several
The selection characterization more elements of the optimal livestock meat of 2 viscous-elastic behaviour of sample to be tested, which stick, in the glutinous bullet model of the more elements of livestock meat plays model, and
Extract (determination) glutinous bullet parameter.
In step S1, the meat for obtaining the same position of livestock and poultry refers to as sample and cannot all take to the same position of livestock and poultry
Sample, but meat is uniformly partially taken out and is used as sample, guarantee that the livestock meat sample to be measured reflects that livestock and poultry are same as much as possible
The viscous-elastic behaviour at one position.For example, first removing the obvious uneven portion of cucumber strip both ends thickness after obtaining the cucumber strip in beef
Point, it is then sampled since intermediate position, can guarantee the consistency of beef cucumber strip sample viscoelasticity in this way.
To the deformation data of each sample to be tested 2 acquisition at least five position；In order to avoid the hypotelorism of acquisition position,
The viscoelasticity of 2 regional area of sample to be tested is had an impact, the distance between two neighboring acquisition position is not less than 20mm, and is
The edge of sample to be tested 2 is avoided to interfere acquisition deformation data, edge of the acquisition position apart from sample to be tested 2 be not less than
20mm；
In step S1, in order to avoid the size of sample to be tested 2 is too small, and deformation of the sample to be tested under gas shock is produced
Raw interference, described by sample cutting, simultaneously shaping refers to that sample is cut to and is shaped as size is not less than 80mm × 60mm × 20mm
The sample to be tested 2 of (length × width x thickness), and the quantity of sample to be tested 2 is no less than 3.
In step S2, the deformation data of all acquisition positions of sample to be tested 2 is averaged, as the sample to be tested 2
Deflection d (t)；Concrete operations are each acquisition position to sample to be tested 2, acquire one group of deformation data sequence, and each adopt
The deformation data sequence length for collecting position is identical, when the deformation data sequence acquisition knot of all acquisition positions of the sample to be tested 2
Shu Hou carries out average calculating operation to the deformation data sequence of all acquisition positions, obtains being averaged for 2 deformation data of sample to be tested
Value；After the completion of the deformation data acquisition to all samples to be tested 2, is calculated by computer 7, obtain all samples to be tested 2 at any time
Between the strain value ε (t) that changes.
Based on the above technical solution, in order to reduce the calculation amount of fit procedure, accelerate fitting speed and improve quasi-
Precision is closed, three elements functional expression described in step S4 is obtained by livestock meat three elements creep model formula (1) simplification, three elements letter
Shown in numerical expression form such as formula (2):
Wherein: τ2For creep retardation time, y is dependent variable, and x is independent variable, a1、a2And a3For fitting coefficient；
When choosing three-element model and establishing three elements functional expression, it is quasi- that data are carried out to the strain data of air-flow load phase
When conjunction, time variable t value is first substituted into independent variable x, strain value ε (t) is substituted into dependent variable y, obtains fitting coefficient a1、a2And a3,
Again by the fitting coefficient a of acquisition1、a2And a3Three elements functional expression shown in substitution formula (2) obtains the glutinous bullet mould of livestock meat three elements
Type；
Glutinous bullet parameter E is calculated by formula (1) and formula (2), and according to formula (3)-(6)1、E2And η2,
E1=σ/a1 (3)
E2=σ/a2 (4)
τ2=a3 (5)
η2=E2·τ2 (6)
Wherein: glutinous to play parameter E1For the instant elastic modulus of sample to be tested 2, sticks and play parameter E2For elasticity modulus, sticks and play parameter
η2For viscosity；
Shown in the form such as formula (7) of the four elements functional expression:
Wherein: a1、a2、a3And a4For fitting coefficient；
When choosing four-element model and establishing four element functional expressions, it is quasi- that data are carried out to the strain data of air-flow load phase
When conjunction, time variable t value is first substituted into independent variable x, strain value ε (t) is substituted into dependent variable y, obtains fitting coefficient a1、a2、a3With
a4, then by the fitting coefficient a of acquisition1、a2、a3And a4It is glutinous to obtain four element of livestock meat for four element functional expressions shown in substitution formula (7)
Play model；
According to four element creep model formula of livestock meat, as shown in formula (8), glutinous bullet parameter is determined,
Glutinous bullet parameter E is calculated by formula (7) and formula (8), and according to formula (3)-formula (6) and formula (9)1、E2、η1And η2,
E1=σ/a1 (3)
E2=σ/a2 (4)
τ2=a3 (5)
η2=E2·τ2 (6)
η1=σ/a4 (9)
The remaining deformation of the four element creep model of livestock meat is σ t1/η1, wherein t1When continuing for gas shock
Between.
Based on the above technical solution, shown in the form such as formula (10) of the five elements functional expression:
Wherein: a1、a2、a3、a4And a5For fitting coefficient；
When choosing five-factor model and establishing five elements functional expression, it is quasi- that data are carried out to the strain data of air-flow load phase
When conjunction, time variable t value is first substituted into independent variable x, strain value ε (t) is substituted into dependent variable y, obtains fitting coefficient a1、a2、a3、
a4And a5, then by the fitting coefficient a of acquisition1、a2、a3、a4And a5Five elements functional expression shown in substitution formula (10), obtains livestock meat
Five elements are glutinous to play model；
According to livestock meat five elements creep model formula, as shown in formula (11), glutinous bullet parameter is determined,
Glutinous bullet parameter E is calculated by formula (10) and formula (11), and according to formula (3)-formula (6), formula (12)-formula (14)1、E2、E3、
η2And η3,
E1=σ/a1 (3)
E2=σ/a2 (4)
τ2=a3 (5)
η2=E2·τ2 (6)
E3=σ/a4 (12)
τ3=a5 (13)
η3=E3·τ3 (14)
Shown in the form such as formula (15) of the six elements functional expression:
Wherein: a1、a2、a3、a4、a5And a6For fitting coefficient；
When choosing six feature models and establishing six element functional expressions, the strain data of air-flow load phase is fitted
When, time variable t value is first substituted into independent variable x, strain value ε (t) is substituted into dependent variable y, obtains fitting coefficient a1、a2、a3、a4、
a5And a6, then by the fitting coefficient a of acquisition1、a2、a3、a4、a5And a6Six element functional expressions, obtain livestock and poultry shown in substitution formula (15)
Six element of meat is glutinous to play model；
According to six element creep model formula of livestock meat, as shown in formula (16), glutinous bullet parameter is determined,
Glutinous bullet parameter is calculated by formula (15) and formula (16), and according to formula (3)-formula (6), formula (12)-formula (14) and formula (17)
E1、E2、E3、η1、η2And η3,
E1=σ/a1 (3)
E2=σ/a2 (4)
τ2=a3 (5)
η2=E2·τ2 (6)
E3=σ/a4 (12)
τ3=a5 (13)
η3=E3·τ3 (14)
η1=σ/a6 (17)
Based on the above technical solution, the element quantity for increasing more feature models, chooses corresponding element quantity
More feature models, according to establish the livestock meat three elements it is glutinous play model, four element of livestock meat it is glutinous play model, livestock meat five is wanted
Element, which sticks, plays model and the glutinous method for playing model of six element of livestock meat, establishes the glutinous bullet model, eight element of livestock meat of seven element of livestock meat
It sticks and plays model or the glutinous bullet model of the more elements of livestock meat containing more element quantity, and calculate the glutinous bullet model of the corresponding more elements of livestock meat
Glutinous bullet parameter.
The five-factor model, six feature models, seven feature models, eight feature models or more are broad sense
Kelvin model, generalized Kelvin model are connected in series by many Kelvin models.Establishing generalized Kelvin model is in order to more
The deformation process of livestock meat is accurately described, to obtain more accurate glutinous bullet model and its glutinous bullet parameter.
Based on the above technical solution, in step S4, the data fitting algorithms are general global optimization approach, something lost
Propagation algorithm, simulated annealing, any one in simple face body climbing method.
Based on the above technical solution, in step S5, the fitting effect includes fitting precision, the fitting precision
Parameter include the coefficient of determination (R2), residual sum of squares (RSS) (SSE), card side's coefficient (Chi-Square) and F count (F-
Statistic)。
Based on the above technical solution, it in step S5, is played in model using several more elements of livestock meat are glutinous
Any one characterization is derived from the viscous-elastic behaviour of all samples to be tested 2 of the meat at the same position of livestock and poultry.
Based on the above technical solution, in step S5, it is described according to actual needs, select optimal livestock meat more want
Detailed process is as follows for the glutinous bullet model of element:
The coefficient of determination of the more feature models of livestock meat more several first；
On the basis of coefficient of determination meet demand, it is simplified model, selects the more elements of livestock meat of element negligible amounts
It is glutinous to play model.
Based on the above technical solution, in step S5, after the glutinous bullet model of the more elements of the best livestock meat of determination, to every
A sample to be tested 2 extracts glutinous bullet parameter, then is averaged to the glutinous bullet parameter of all samples to be tested 2, to characterize the livestock meat portion
The viscous-elastic behaviour of position.
The fitting coefficient is set greater than 0, otherwise without physical significance.
So based on the above technical solution, during data fitting is carried out in the step S4, to described
Fitting coefficient addition is all larger than 0 constraint condition.
Advantageous effects of the invention are as follows:
It can realize that livestock meat sticks bullet using the glutinous method for establishing model that plays of air-flow and laser ranging technique and the more elements of livestock meat
Lossless, the quick detection of property.It is first after the strain data using livestock meat viscoelasticity nondestructive detection system acquisition sample to be tested 2
It is the selection more feature models of odd number type first according to the deformation behaviour of sample to be tested 2, or selects the more feature models of even number type, so
After establish that the more elements of livestock meat are glutinous to play model.By comparing the glutinous fitting effect for playing model of the more elements of several livestock meats, and according to
Actual demand preferably goes out the glutinous bullet model of the most satisfied more elements of livestock meat, and determines to stick and play parameter, characterizes the glutinous bullet of the livestock meat
Property.This method can be unknown to viscoelasticity livestock meat sample detect.
Detailed description of the invention
The present invention has following attached drawing:
The more elements of Fig. 1 livestock meat of the present invention are glutinous to play method for establishing model flow diagram.
The acquisition position schematic diagram of certain acquisition sample to be tested deformation information of Fig. 2.
Strain-time plot that Fig. 3 utilizes livestock meat viscoelasticity nondestructive detection system to obtain.
Four element of livestock meat of some sample to be tested of Fig. 4 is glutinous to play models fitting effect diagram.
Fig. 5 livestock meat viscoelasticity nondestructive detection system structural schematic diagram.
Appended drawing reference:
1 lifting platform, 2 samples to be tested, 3 air storage injection apparatus, 4 fixed frames, 5 sensor probes, 6RS-232C communicate mould
Block DL-RS1A, 7 computers, 8 sensor amplifiers, 9 microcontroller development boards, 10 electric Proportion valves, 11 solenoid valves, 12 tracheaes, 13
Air compressor, 14 filtering pressure reducing valves.
Specific embodiment
In order to illustrate more clearly of the present invention, with reference to the accompanying drawings of the specification and embodiment, to specific implementation of the invention
Mode is described in further detail.Following embodiment is merely to illustrate invention, but cannot be used to limit the scope of the invention.It is aobvious and
It is clear to, the following description and drawings are only section Example of the invention, for those of ordinary skill in the art, not
Under the premise of making the creative labor, other accompanying drawings and embodiments can also be obtained according to listed attached drawing.
As shown in figure 5, a kind of livestock meat viscoelasticity nondestructive detection system, comprising: air compressor 13, swashs at control device
Optar, sensor probe 5, computer 7 and difference gauge；
The air compressor 13 passes through surface output gas flow of the tracheae 12 to sample to be tested 2；The control device includes
Microcontroller development board 9 and several valve bodies connecting with microcontroller development board 9, the valve body are installed on tracheae 12；The laser
Rangefinder includes sensor probe 5, and the sensor probe 5 for acquiring the deformation information on 2 surface of sample to be tested and anti-in real time
It is fed in the computer 7；The difference gauge is for detecting the atmospheric pressure value for acting on 2 surface of sample to be tested, and real-time display, guarantor
Surveyed atmospheric pressure value is deposited, exports the atmospheric pressure value to computer 7, for drawing load-deformation curve；The difference gauge is equipped with soft
Pipe；The computer 7 is connect with microcontroller development board 9, for controlling several valve bodies, the computer 7 be calculated to
The strain value ε (t) that sample 2 changes over time, and receive atmospheric pressure value derived from difference gauge, obtain load-deformation curve and answer
Change-time graph, and then analyze the viscoelasticity of livestock meat；One end on the tracheae 12 close to the air compressor 13 is equipped with
Filtering pressure reducing valve 14.
The livestock meat viscoelasticity nondestructive detection system further includes lifting platform 1, air storage injection apparatus 3, sensor amplifier 8
With RS-232C communication module DL-RS1A 6, the lifting platform 1 is located at the lower section of sample to be tested 2, for driving 2 liters of sample to be tested
Drop movement；The output end of the tracheae 12 is connect with air storage injection apparatus 3, and the air storage injection apparatus 3 is located at sample to be tested 2
Top is equipped with nozzle in the lower end of air storage injection apparatus 3, and the nozzle is towards sample to be tested 2；The surface of sample to be tested 2 and institute
The distance for stating nozzle is 0mm；The input path of the sensor probe 5 and the nozzle for spraying air-flow are coaxial；The laser side away from
Instrument 3 further includes sensor amplifier 8, and the sensor senses head 5 passes through sensor amplifier 8 and RS-232C communication module DL-
6 communication connection of RS1A, the RS-232C communication module DL-RS1A 6 are connect with computer 7.
The livestock meat viscoelasticity nondestructive detection system further includes fixed frame 4, the lifting platform 1, sample to be tested 2 and
Nozzle is respectively positioned in fixed frame 4；One end of the tracheae 12 is connect with air compressor 13.
Several valve bodies include solenoid valve 11 and electric Proportion valve 10, and the solenoid valve 11 is distinguished with electric Proportion valve 10
It is installed on tracheae 12.
The on-off of air-flow is controlled by the solenoid valve 11, is realized the control to the airflow function time, is passed through electrical ratio
Atmospheric pressure value is arranged in valve 10.
Method for establishing model flow diagram is played for the more elements of livestock meat of the present invention are glutinous as shown in Figure 1, specific implementation is for example
Under.
(1) preparation of livestock meat sample
From the meat at supermarket's purchase same position of livestock and poultry as sample, cannot to the meat gross sample at the same position of livestock and poultry, and
It is uniformly partially to take out meat as sample, guarantees that the livestock meat sample to be measured reflects the same position of livestock and poultry as much as possible
Viscous-elastic behaviour.In the present embodiment, after obtaining the cucumber strip in cold fresh beef, it is obviously uneven first to remove cucumber strip both ends thickness
Part, then sampled since intermediate position, in this way can guarantee beef cucumber strip sample viscoelasticity it is consistent.
Sample is cut and is shaped as the consistent several samples to be tested 2 of size.In order to avoid sample to be tested 2 size too
It is small, and interference is generated to the deformation of the sample to be tested 2 under gas shock, in the present embodiment, sample is cut and is shaped as
The sample to be tested 2 of 80mm × 60mm × 30mm (length × width x thickness), the quantity of sample to be tested 2 are 3.All samples to be tested 2 are waken up
Temperature (sample to be tested 2 is placed under room temperature environment and carries out heat exchange) about 30min, after the temperature of sample to be tested 2 is restored to room temperature,
It follows the steps below.
(2) acquisition of strain data
Using the deformation information of livestock meat viscoelasticity nondestructive detection system acquisition sample to be tested 2, i.e. deflection becomes at any time
The data of change.The livestock meat viscoelasticity nondestructive detection system uses air-flow and laser ranging technique, and wherein air-flow is compressed by air
Machine 13 provides, and generates active force to 2 surface of sample to be tested；Sensor probe 5 for acquiring the change on 2 surface of sample to be tested in real time
Shape information, sample frequency 50Hz.
Sense organ judgement for livestock meat, generally leans on the chewing of tooth or is pressed with finger, the period is all 2-3s.
In order to make sample to be tested 2 show viscoelasticity under the action of gas shock, gas shock is set in the present embodiment
Duration t1For 2s.It is special in order to observe and record deformation when 2 stabilization of sample to be tested after gas shock
Sign, this implementations after gas shock, continue acquire deformation data, set it is described continue acquisition deformation data time as
5s。
Stop after gas shock effect 2s, sample to be tested 2 starts to restore deformation.Therefore, the number of 7s time span is acquired altogether
According to as data to be analyzed.The deformation data of 5 positions is acquired to each sample to be tested 2, then the deformation data of 5 positions is taken
Average value, the deflection d (t) as sample to be tested 2.
When gas shock, in order to avoid the hypotelorism of acquisition position, the viscoelasticity of 2 regional area of sample to be tested is produced
Raw to influence, the distance between two neighboring acquisition position is not less than 20mm, and in order to avoid 2 edge of sample to be tested deforms acquisition
Data interfere, and edge of the acquisition position apart from sample to be tested 2 is not less than 20mm.This acquisition is illustrated in figure 2 to test sample
The acquisition position schematic diagram of product deformation information, wherein the circle in Fig. 2 is acquisition position.
The exposure of sample to be tested 2 is too long in air in order to prevent, the change of 2 ingredient of sample to be tested is caused, thus viscoelasticity
It changes, therefore the acquisition of 2 deformation information of sample to be tested will be completed as early as possible.
After the completion of the deformation data acquisition of all samples to be tested 2, calculated by computer 7, the strain changed over time
Value ε (t), strain-time graph are as shown in Figure 3.The calculating process of computer 7, is summarized as follows.
After the completion of the data acquisition of deflection d (t) calculates, the strain value ε (t) of all samples to be tested 2, strain value ε are calculated
(t) shown in calculation formula such as formula (20),
ε (t)=d (t)/h (18)
Wherein: ε (t) is the strain value changed over time；D (t) is the deflection changed over time；H is sample to be tested 2
Original depth.
(3) determination of constant stress value σ
Gas shock causes sample to be tested 2 to deform, according to the active force and reaction force of power, adopts on 2 surface of sample to be tested
Constant stress value σ is replaced to carry out subsequent analysis with air-flow pressure force value (atmospheric pressure value).
In order to avoid the thickness h of sample to be tested 2 generates interference to the deformation of sample to be tested 2, sample to be tested 2 is controlled in air-flow
Maximum strain value under percussion is no more than 30%.
In the present embodiment, stream pressure is set as 70kPa, since there are atmospheric pressure lost, benefits by electric Proportion valve 10
The atmospheric pressure value on 2 surface of sample to be tested is acted on difference gauge (model: HT-1891) detection.
In the present embodiment, the maximum deformation quantity of sample to be tested 2 about 6mm, as shown in figure 3, i.e. maximum strain value about 20%,
Meet the requirement that maximum strain value is no more than 30%.The air-flow pressure within the scope of 0~10mm of jet hole is measured using difference gauge
Power is 4.024 ± 0.006kPa, it is believed that atmospheric pressure value of the sample to be tested 2 within the scope of the deflection of 0~10mm is one constant
Value takes the atmospheric pressure value of 4.024kPa as constant stress value σ, carries out subsequent analysis.
(4) more element functional expressions are chosen, data fitting is carried out to strain data, fitting coefficient is solved, it is more to obtain livestock meat
Element is glutinous to play model, and determines glutinous bullet parameter.
Strain value ε (t) data acquisition after, using gas shock after sample to be tested 2 deformation data observation it is to be measured
The deformation behaviour of sample 2.After deformation behaviour is gas shock, whether sample to be tested 2 can restore completely, if can be completely extensive
Multiple, then illustrating sample to be tested 2, there is no residual deformations；If cannot restore completely, illustrate that there are residual deformations for sample to be tested 2.
The strain of acquisition-time data are showed in graph form, such as Fig. 3 in the present embodiment in order to facilitate observation deformation behaviour
It is shown.3 samples to be tested 2 are clearly observed by Fig. 3 not restore completely in the recoverable force stage, illustrate that sample to be tested 2 is deposited
In residual deformation, and with the extension of time, recoverable force gradually tends to a steady state value, illustrate the 5s for continuing to acquire deformation data
Recovery time can characterize recovery feature.
Generalized Kelvin model is established and is the deformation process in order to more accurately describe livestock meat, to obtain more accurate
The more elements of livestock meat glutinous play model and its glutinous play parameter.Five-factor model, six feature models, seven feature models, eight element moulds
The glutinous model that plays of the more elements of the livestock meat of type or more quantity is generalized Kelvin model, and generalized Kelvin model is by many
Kelvin model is connected in series.
The more elements of livestock meat are glutinous to play model according to sample to be tested 2 with the presence or absence of residual deformation, chooses the class of more feature models
Type；If residual deformation is not present in sample to be tested 2, the more feature models of odd number type (such as three-element model, five-factor model, seven are chosen
Feature model etc.) carry out data fitting；If there are residual deformations for sample to be tested 2, the more feature models of even number type (such as four elements are chosen
Model, six feature models, eight feature models etc.) carry out data fitting.
In the present embodiment, according to the deformation behaviour in 2 recoverable force stage of sample to be tested, determine that there are residual for sample to be tested 2
Remaining deformation.Therefore, using the more feature models of even number type and the more element functional expressions of even number type are established, the strain to air-flow load phase
Data carry out data fitting.
Shown in the form such as formula (7) of four element functional expressions:
To guarantee that fitting coefficient has physical significance, when carrying out data fitting, for the functional expression to be established addition fitting system
Number is all larger than 0 constraint condition.
Data are carried out to the strain data of 32 air-flow load phases of sample to be tested respectively using general global optimization approach
Fitting, by obtained four fitting coefficient a1、a2、a3And a4Value substitute into four element functional expressions, can be obtained 3 samples to be tested 2
Four element of livestock meat glutinous play model.
Compare the glutinous parameter for playing models fitting precision of the more elements of livestock meat, including the coefficient of determination (R2), residual sum of squares (RSS)
(SSE), card side's coefficient (Chi-Square) and F statistics (F-Statistic).The coefficient of determination (R is selected in the present embodiment2) make
For the glutinous index for playing models fitting precision and comparing of the more elements of livestock meat.Four element of livestock meat of one of sample to be tested is glutinous to play mould
Type fitting effect schematic diagram is as shown in Figure 4.
The glutinous bullet model of four element of livestock meat of 3 samples to be tested 2 of gained is respectively as shown in formula (19)-formula (21).
ε (t)=0.0483+0.1185 (1-e-t/0.0535)+0.0239t (19)
Wherein, R2=0.9845；
ε (t)=0.0450+0.1273 (1-e-t/0.0871)+0.0209t (20)
Wherein, R2=0.9907；
ε (t)=0.0577+0.1086 (1-e-t/0.0770)+0.0164t (21)
Wherein, R2=0.9756.
Glutinous bullet parameter E is calculated according to formula (3)-formula (6) and formula (9)1、E2、η1And η2,
E1=σ/a1 (3)
E2=σ/a2 (4)
τ2=a3 (5)
η2=E2·τ2 (6)
η1=σ/a4 (9)
It is as shown in table 1 the glutinous bullet parameter for 3 samples to be tested 2 being calculated.
Four elements of 1 sample to be tested 2 of table are glutinous to play the glutinous bullet parameter of model
Shown in the form such as formula (15) of six element functional expressions:
The glutinous bullet model of six element of livestock meat of 3 samples to be tested 2 of gained is respectively as shown in formula (22)-formula (24).
ε (t)=0.0433+0.1064 (1-e-t/0.0368)+0.0584(1-e-t/0.2441)+0.0118t (22)
Wherein, R2=0.9989；
ε (t)=0.0364+0.0897 (1-e-t/0.0448)+0.0558(1-e-t/0.2375)+0.0143t (23)
Wherein, R2=0.9982；
ε (t)=0.0411+0.0672 (1-e-t/0.0173)+0.0654(1-e-t/0.1755)+0.0110t (24)
Wherein, R2=0.9983.
It is as shown in table 2 the glutinous bullet parameter for 3 samples to be tested 2 being calculated.
Six elements of 2 sample to be tested 2 of table are glutinous to play the glutinous bullet parameter of model
(5) the glutinous fitting effect for playing model of the more elements of more each livestock meat, selection can be characterized to test sample according to actual needs
The more elements of best livestock meat of 2 viscous-elastic behaviour of product are glutinous to play model and its glutinous bullet parameter.
Selecting the glutinous bullet model of the more elements of best livestock meat according to actual needs, detailed process is as follows:
The glutinous coefficient of determination for playing models fitting of the more elements of livestock meat more each first, then selects model appropriate.It determines
Coefficients R2It is bigger, and closer to 1, then illustrate that fitting effect is better.
Theoretically to see, the glutinous fitting effect for playing model of the more elements of the more livestock meat of element quantity is better, but certainly
It is simplified model on the basis of determining coefficient meet demand, selects the more elements of livestock meat of element negligible amounts are glutinous to play model.
The fitting coefficient of determination for playing model is sticked it is found that R by six element of livestock meat of above-mentioned 3 established samples to be tested 22
More than 0.998, the demand of fitting precision is fully met, and has been substantially better than the glutinous fitting essence for playing model of four element of livestock meat
Degree.Therefore, in the present embodiment, without resettling, eight element of livestock meat is glutinous to play model.While in order to simplify the more elements of livestock meat
It is glutinous to play model, in the present embodiment, the glutinous bullet model of six element of livestock meat is selected to play model for the more elements of optimal livestock meat are glutinous.
After determining the glutinous bullet model of the more elements of optimal livestock meat, the corresponding glutinous parameter that plays obtains immediately, to all to test sample
The glutinous bullet parameter of product 2 is averaged, to characterize the viscoelasticity at the livestock meat position.
In the present embodiment, after being averaged, the glutinous bullet parameter at the livestock meat position is as shown in table 3.
The glutinous bullet parameter of the cold fresh beef cucumber strip of table 3
In conclusion the present invention provides, a kind of more elements of livestock meat are glutinous to play model foundation and its glutinous side for playing parameter and determining
Method.The deformation information that sample to be tested 2 is acquired by livestock meat viscoelasticity nondestructive detection system, it is special according to the deformation of sample to be tested 2
Sign is the selection more feature models of odd number type, or the selection more feature models of even number type, then using more element functional expressions to strain
Data carry out data fitting, according to the fitting coefficient fitted, establish the glutinous bullet model of the more elements of livestock meat.It is more to compare each livestock meat
The glutinous fitting effect for playing model of element；And the selection characterization optimal livestock meat of 2 viscous-elastic behaviour of sample to be tested is more according to actual needs
Element is glutinous to play model, and extracts glutinous bullet parameter.
In the present embodiment, method for establishing model is played by the way that the more elements of livestock meat are glutinous, obtains cold fresh beef cucumber strip most
The glutinous bullet model of the good more elements of livestock meat, which is that six element of livestock meat is glutinous, plays model, and viscous-elastic behaviour is with six glutinous bullet parameter characterizations.It is described
The glutinous method for establishing model that plays of the more elements of livestock meat can establish the glutinous bullet model of the more elements of livestock meat of different type livestock meat, and obtain
To the glutinous bullet parameter of characterization the type livestock meat viscoelasticity.To the livestock meat viscous-elastic behaviour after the different storage number of days of acquisition, only
Then livestock meat sample storage to be measured to given number of days need to be recycled livestock meat viscoelasticity nondestructive detection system and the livestock and poultry
The glutinous method for establishing model that plays of the more elements of meat is detected, is calculated.
The embodiment of the present invention merely to provided for the sake of example and description, and be not exhaustive disclose this
The form of ownership of invention, and limit the invention to disclosed form.Ordinary skill of many modifications and variations for this field
It is apparent for personnel.Attached drawing and the embodiment of description merely to the principle of the present invention and practical application is better described,
And make those skilled in the art it will be appreciated that the present invention, is obviously repaired so that design is suitable for having for special-purpose
The various embodiments changed.
The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (6)
1. a kind of more elements of livestock meat are glutinous to play method for establishing model, which comprises the steps of:
The preparation of S1, livestock meat sample: the meat at the same position of livestock and poultry is obtained as sample, sample is cut and is shaped as size one
Several samples to be tested (2) caused；
The acquisition of S2, strain data: the livestock meat viscoelasticity nondestructive detection system of air-flow and laser ranging technique has been merged in application
Gas shock is carried out to sample to be tested (2)；
By the lifting of lifting platform (1), so that the surface of sample to be tested (2) is bonded with nozzle；
The gas shock duration t1It is set as no less than 2s, this stage is air-flow load phase；
Meanwhile acquiring the deformation data of sample to be tested (2) in real time using livestock meat viscoelasticity nondestructive detection system；
After gas shock, continue to acquire deformation data, the time for continuing to acquire deformation data is no less than 5s, this rank
Section is the recoverable force stage；
After the completion of the deformation data acquisition to all samples to be tested (2), is calculated by computer (7), obtain strain data, it is described
Strain data is the strain value ε (t) that sample to be tested (2) change over time, and obtains strain-time graph, wherein t is the time
Variable；
The determination of S3, constant stress value σ: gas shock causes sample to be tested (2) to deform on the surface of sample to be tested (2)；It utilizes
Difference gauge detects the atmospheric pressure value for acting on sample to be tested (2) surface, replaces constant stress value σ using atmospheric pressure value, carries out subsequent point
Analysis；
S4, more element functional expressions are established, obtains the glutinous bullet model of the more elements of livestock meat: first passes through the sample to be tested obtained in step S2
(2) strain-time graph, after observing gas shock, the deformation behaviour of sample to be tested (2)；Further according to deformation behaviour, choosing
More feature models are taken, more element functional expressions are established, then using the more element functional expressions established to the strain data in step S2
Using data fitting algorithms, data fitting is carried out；According to the fitting coefficient of acquisition, livestock meat is obtained by more element functional expressions and is wanted more
Element is glutinous to play model；
After the deformation behaviour is gas shock, whether sample to be tested (2) can restore completely, if can restore completely,
Illustrate that sample to be tested (2) there is no residual deformations；If cannot restore completely, illustrate that there are residual deformations for sample to be tested (2)；
More feature models include the more feature models of odd number type and the more feature models of even number type；
If residual deformation is not present in sample to be tested (2), chooses odd number type more feature models and data fitting is carried out to strain data；If
There are residual deformations for sample to be tested (2), choose the more feature models of even number type and carry out data fitting to strain data；
The element quantity of the more feature models of odd number type is odd number, and the element quantity of the more feature models of even number type is even
Number；
The more feature models of odd number type include three-element model, five-factor model and seven feature models；The even number type is wanted more
Prime model includes four-element model, six feature models and eight feature models；
The element quantity of the three-element model is three, and the element quantity of the five-factor model is five, seven feature model
Element quantity be seven；The element quantity of the four-element model is four, and the element quantity of six feature model is six, described
The element quantity of eight feature models is eight；
When choosing three-element model, establishes three elements functional expression and data fitting is carried out to the strain data of air-flow load phase,
Fitting coefficient is obtained, the glutinous bullet model of livestock meat three elements is obtained by three elements functional expression, and extract instant elastic modulus E1, elasticity
Modulus E2With viscosity η2；
When choosing five-factor model, establishes five elements functional expression and data fitting is carried out to the strain data of air-flow load phase,
Fitting coefficient is obtained, the glutinous bullet model of livestock meat five elements is obtained by five elements functional expression, and extract instant elastic modulus E1, elasticity
Modulus E2, elastic modulus E3, viscosity η2With viscosity η3；
When choosing seven feature models, establishes seven element functional expressions and data fitting is carried out to the strain data of air-flow load phase,
Fitting coefficient is obtained, obtains the glutinous bullet model of seven element of livestock meat by seven element functional expressions, and extract instant elastic modulus E1, elasticity
Modulus E2, elastic modulus E3, elastic modulus E4, viscosity η2, viscosity η3With viscosity η4；
When choosing four-element model, establishes four element functional expressions and data fitting is carried out to the strain data of air-flow load phase,
Fitting coefficient is obtained, obtains the glutinous bullet model of four element of livestock meat by four element functional expressions, and extract instant elastic modulus E1, elasticity
Modulus E2, viscosity η1With viscosity η2；
When choosing six feature models, establishes six element functional expressions and data fitting is carried out to the strain data of air-flow load phase,
Fitting coefficient is obtained, obtains the glutinous bullet model of six element of livestock meat by six element functional expressions, and extract instant elastic modulus E1, elasticity
Modulus E2, elastic modulus E3, viscosity η1, viscosity η2With viscosity η3；
When choosing eight feature models, establishes eight element functional expressions and data fitting is carried out to the strain data of air-flow load phase
When, fitting coefficient is obtained, obtains the glutinous bullet model of eight element of livestock meat by eight element functional expressions, and extract instant elastic modulus E1、
Elastic modulus E2, elastic modulus E3, elastic modulus E4, viscosity η1, viscosity η2, viscosity η3With viscosity η4；
The element quantity for increasing more feature models chooses more feature models of corresponding element quantity, establishes corresponding livestock and poultry
The more elements of meat are glutinous to play model, and extracts glutinous bullet parameter；
S5, according to different element quantity is chosen, determine the more feature models chosen, and from different data fitting algorithms groups
It closes, establishes several more element functional expressions, obtain the glutinous bullet model of the more elements of several livestock meats；
According to actual needs, the glutinous fitting effect for playing model of several more elements of livestock meat is compared, from several livestock and poultry
The more elements of meat glutinous play selects the characterization more elements of the optimal livestock meat of sample to be tested (2) viscous-elastic behaviour are glutinous to play model in model, and mentions
Take glutinous bullet parameter；
Three elements functional expression described in step S4 is obtained by livestock meat three elements creep model formula (1) simplification, three elements function
Shown in formula form such as formula (2):
Wherein: τ2For creep retardation time, y is dependent variable, and x is independent variable, a1、a2And a3For fitting coefficient；
When choosing three-element model and establishing three elements functional expression, data fitting is carried out to the strain data of air-flow load phase
When, time variable t value is first substituted into independent variable x, strain value ε (t) is substituted into dependent variable y, obtains fitting coefficient a1、a2And a3, then
By the fitting coefficient a of acquisition1、a2And a3Three elements functional expression shown in substitution formula (2) obtains the glutinous bullet model of livestock meat three elements；
Glutinous bullet parameter E is calculated by formula (1) and formula (2), and according to formula (3)-(6)1、E2And η2,
E1=σ/a1 (3)
E2=σ/a2 (4)
τ2=a3 (5)
η2=E2·τ2 (6)
Shown in the form such as formula (7) of the four elements functional expression:
Wherein: a1、a2、a3And a4For fitting coefficient；
When choosing four-element model and establishing four element functional expressions, data fitting is carried out to the strain data of air-flow load phase
When, time variable t value is first substituted into independent variable x, strain value ε (t) is substituted into dependent variable y, obtains fitting coefficient a1、a2、a3With
a4, then by the fitting coefficient a of acquisition1、a2、a3And a4It is glutinous to obtain four element of livestock meat for four element functional expressions shown in substitution formula (7)
Play model；
According to four element creep model formula of livestock meat, as shown in formula (8), glutinous bullet parameter is determined,
Glutinous bullet parameter E is calculated by formula (7) and formula (8), and according to formula (3)-formula (6) and formula (9)1、E2、η1And η2,
E1=σ/a1 (3)
E2=σ/a2 (4)
τ2=a3 (5)
η2=E2·τ2 (6)
η1=σ/a4 (9)
Shown in the form such as formula (10) of the five elements functional expression:
Wherein: a1、a2、a3、a4And a5For fitting coefficient；
When choosing five-factor model and establishing five elements functional expression, data fitting is carried out to the strain data of air-flow load phase
When, time variable t value is first substituted into independent variable x, strain value ε (t) is substituted into dependent variable y, obtains fitting coefficient a1、a2、a3、a4
And a5, then by the fitting coefficient a of acquisition1、a2、a3、a4And a5Five elements functional expression shown in substitution formula (10), obtains livestock meat five
Element is glutinous to play model；
According to livestock meat five elements creep model formula, as shown in formula (11), glutinous bullet parameter is determined,
Glutinous bullet parameter E is calculated by formula (10) and formula (11), and according to formula (3)-formula (6), formula (12)-formula (14)1、E2、E3、η2With
η3,
E1=σ/a1 (3)
E2=σ/a2 (4)
τ2=a3 (5)
η2=E2·τ2 (6)
E3=σ/a4 (12)
τ3=a5 (13)
η3=E3·τ3 (14)
Shown in the form such as formula (15) of the six elements functional expression:
Wherein: a1、a2、a3、a4、a5And a6For fitting coefficient；
When choosing six feature models and establishing six element functional expressions, when being fitted to the strain data of air-flow load phase, first
Time variable t value is substituted into independent variable x, strain value ε (t) is substituted into dependent variable y, obtains fitting coefficient a1、a2、a3、a4、a5With
a6, then by the fitting coefficient a of acquisition1、a2、a3、a4、a5And a6Six element functional expressions, obtain livestock meat shown in substitution formula (15)
Six elements are glutinous to play model；
According to six element creep model formula of livestock meat, as shown in formula (16), glutinous bullet parameter is determined,
Glutinous bullet parameter E is calculated by formula (15) and formula (16), and according to formula (3)-formula (6), formula (12)-formula (14) and formula (17)1、E2、
E3、η1、η2And η3,
E1=σ/a1 (3)
E2=σ/a2 (4)
τ2=a3 (5)
η2=E2·τ2 (6)
E3=σ/a4 (12)
τ3=a5 (13)
η3=E3·τ3 (14)
η1=σ/a6 (17)
The element quantity for increasing more feature models chooses more feature models of corresponding element quantity, according to establishing the poultry
Poultry three elements stick and play the glutinous bullet model of model, four element of livestock meat, livestock meat five elements stick bullet model and six element of livestock meat is glutinous
The method for playing model establishes the glutinous bullet model of seven element of livestock meat, the glutinous bullet model of eight element of livestock meat or containing more element quantity
The more elements of livestock meat are glutinous to play model, and calculates the glutinous glutinous bullet parameter for playing model of the corresponding more elements of livestock meat.
2. the more elements of livestock meat as described in claim 1 are glutinous to play method for establishing model, it is characterised in that: described in step S4
Data fitting algorithms are general global optimization approach, genetic algorithm, simulated annealing, any one in simple face body climbing method
Kind.
3. the more elements of livestock meat as described in claim 1 are glutinous to play method for establishing model, it is characterised in that: described in step S5
Fitting effect includes fitting precision, and the parameter of the fitting precision includes the coefficient of determination, residual sum of squares (RSS), card side's coefficient and F system
Meter.
4. the more elements of livestock meat as claimed in claim 3 are glutinous to play method for establishing model, it is characterised in that: described in step S5
According to actual needs, selecting the glutinous bullet model of the more elements of optimal livestock meat, detailed process is as follows:
The coefficient of determination of the more feature models of livestock meat more several first；
It is simplified model on the basis of coefficient of determination meet demand, the more elements of livestock meat of element negligible amounts is selected to stick bullet
Model.
5. the more elements of livestock meat as described in claim 1 are glutinous to play method for establishing model, it is characterised in that: in step S5, true
It is glutinous to each sample to be tested (2) extraction to play parameter after the fixed glutinous bullet model of the best more elements of livestock meat, then to all samples to be tested
(2) glutinous bullet parameter is averaged, to characterize the viscous-elastic behaviour at the livestock meat position.
6. the more elements of livestock meat as described in claim 1 are glutinous to play method for establishing model, it is characterised in that: in the step S4
During carrying out data fitting, 0 constraint condition is all larger than to fitting coefficient addition.
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