CN208822751U - Body section apparatus for measuring quality - Google Patents
Body section apparatus for measuring quality Download PDFInfo
- Publication number
- CN208822751U CN208822751U CN201820225905.2U CN201820225905U CN208822751U CN 208822751 U CN208822751 U CN 208822751U CN 201820225905 U CN201820225905 U CN 201820225905U CN 208822751 U CN208822751 U CN 208822751U
- Authority
- CN
- China
- Prior art keywords
- load cell
- point
- sina
- sinc
- human body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a kind of body section apparatus for measuring quality, including pedestal and the first load cell being connected on pedestal, the second dynamometry list, third load cell, the 4th load cell and the 5th measuring unit, wherein, first and second load cell is used to measure active force and the position of two human body supporting points in human coronary face；The third load cell or the 5th measuring unit and the 4th load cell, for measuring active force and position in two human body supporting points of human body sagittal plane, wherein, the third load cell is for human hands as the active force of measurement body support's point and position when supporting, and the measuring unit of described first, second, the 4th and the 5th is for human foot as the active force of measurement body support's point and position when supporting.Measuring device structure used in the utility model is simple, measurement process to no damage to human body, can stance measure.
Description
Technical field
The utility model relates to a kind of body section apparatus for measuring quality.
Background technique
Human innertial parameter includes: that human body is whole and quality, centroid position and its rotary inertia of each body section, is to carry out people
The important set of the basic parameter and ergonomics of body movement and injury gained in sports and Prevention Research, anthropology and body science's research
At part, wherein each body section quality of human body is particularly important, lacks practical body section mass measuring method and device in the market.
The measurement application field of each body section quality of human body is very extensive, (such as industrial railing, civilian in safety protection equipment
Balcony guardrail, safety belt etc.) design and body dummy, disabled person's artificial limb development, be also applied for figure mould, quality of losing weight
Variation, medical diagnosis etc..
Human body is divided into several segments by bone mark, every section is known as body section (human-body segment), people
Body body section is divided with apparent bone mark position separation, and human body is divided into neck, upper trunk, lower trunk, left upper arm, upper right
Arm, left forearm, right forearm, left hand, the right hand, left thigh, right thigh, left leg, right leg, left foot, right foot totally 15 positions.
Chinese patent literature CN1682649A discloses the measurement method and equipment of a kind of human ring section weight, it is desirable that be measured
Personnel use prone position subsidiary, and measuring device and measurement method are more complex.
Other body section measurement methods: the body section mass measuring method based on CT nuclear magnetic resonance measured
Journey has injury to human body and high expensive, universality are poor.Body section measurement method based on kinematical equation, data are adopted
Sample difficulty is larger and measurement operability is larger, needs professional experiences.
Utility model content
The purpose of this utility model is to provide a kind of body section apparatus for measuring quality, stance is used to measure to solve
The inconvenient problem of prone position measurement.
For this purpose, the utility model provides a kind of body section apparatus for measuring quality, including pedestal and it is connected to pedestal
On the first load cell, the second load cell, third load cell, the 4th load cell and the 5th measuring unit, wherein
First load cell and the second load cell are used to measure the active force of two human body supporting points in human coronary face
The position and；The third load cell or the 5th measuring unit and the 4th load cell, for measuring two in human body sagittal plane
The active force of a human body supporting point and position, wherein the third load cell measures people as when supporting for human hands
The active force of body supporting point and position, first load cell, the second load cell, the 4th load cell and the 5th measurement are single
Member is for human foot as the active force of measurement body support's point and position when supporting.
Further, the weighing unit packet of above-mentioned third load cell, the 4th load cell and the 5th load cell
Include bottom plate and several load cells being connected on bottom plate, the supporting plate being supported on several load cells, it is described
Several load cells are arranged in sagittal plane.
Further, above-mentioned third load cell is connect with support rod, wherein the support rod is for adjusting third dynamometry
The height of unit, the support rod include two bars that can mutually slide up and down and the relative position for fixing two bars
Holding screw.
Further, above-mentioned first load cell and the second load cell include bottom plate, several surveys for being connected on bottom plate
Force snesor and the vola supporting plate being supported on several load cells, several load cells are arranged in hat
In shape face.
Further, above-mentioned body section apparatus for measuring quality further includes display device, for showing human body measured body section
Quality.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the utility model calculates the quality of body section by surveying the power binding isotherm mechanics of body support's point.It is used
Device for measuring force structure is simple, measurement process is to no damage to human body；
2, the utility model can detect for pattern of body form change and provide data supporting, and such as: the rehabilitation efficacy on clinical medicine is commented
Valence, the objectively evaluating of body atrophy, the moulding of figure, athletic training scheme etc. provide reliable basis.
Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model
Point.Below with reference to figure, the utility model is described in further detail.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 is the schematic diagram according to the body section apparatus for measuring quality of the utility model；
Fig. 2 is according to the utility model in the load cell of coronal-plane and the schematic diagram of load cell；
Fig. 3 is according to the utility model in the load cell of sagittal plane and the schematic diagram of load cell；
Fig. 4 is the schematic diagram according to the load cell with support device of the utility model；
Fig. 5 is human visual's plan view according to the utility model；
Fig. 6 is the organization of human body simplification figure according to the utility model；
Fig. 7 is human body stress's analysis chart according to the utility model:
Fig. 8 is to be measured to scheme according to the human body neck of the utility model；
Fig. 9 is to be measured to scheme according to the right human hand of the utility model；
Figure 10 is to be measured to scheme according to the human body right forearm of the utility model；
Figure 11 is the human body upper right arm measure figure according to the utility model；
Figure 12 is to be measured to scheme according to the human body right crus of diaphragm of the utility model；
Figure 13 is to be measured to scheme according to the human body right leg of the utility model；
Figure 14 is to be measured to scheme according to the human body right thigh of the utility model.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 to Figure 14 shows some embodiments according to the present utility model.
As shown in Figure 1, body section apparatus for measuring quality includes pedestal 1 and five dynamometry lists being connected on pedestal 1
Member 2,3,4,5 and 6.The load cell 3 and 5 arranges vertical human coronary face, for measuring human body tested segment in coronal-plane
When change in location, the power of the supporting point of coronal-plane；Load cell 2,4 and 6 arranges vertical human body sagittal plane, for measuring human body quilt
Section is surveyed in change in location in sagittal plane, the power of the supporting point of sagittal plane.The load cell being arranged under the load cell can
To be arranged as 2,4 or multiple.
Wherein, as shown in Fig. 2, load cell 3 includes bottom plate 31 and the load cell 32 being connected on bottom plate 31,
Vola supporting plate 33 is connected on the load cell 32.The load cell is arranged in coronal-plane.
Load cell 5 and the structure having the same of load cell 3.When body support's point is in coronal-plane, with load cell 3
The active force of body support's point is faced with 5 geodetics.
Wherein, as shown in figure 3, load cell 4 include bottom plate 41, the load cell 42 that is connected on bottom plate 41 and
The vola supporting plate 43 connected on the load cell 42.The load cell is arranged in sagittal plane.
Load cell 2 and load cell 6 and the structure having the same of load cell 4.When body support's point is in sagittal plane,
The active force of body support's point is faced with load cell 2 or 6 and 4 geodetics.
As shown in figure 4, the third load cell 2 is connected on support rod 22, wherein the support rod 22 is for adjusting
The height of third load cell 2, the holding screw 21 are used to adjust the height of support rod 22, and the support rod is arranged in pedestal
1, the third measuring unit 2 is for human hands as the active force of measurement body support's point and position when supporting.Described
Five load cells 6 are for measuring upper half of human body with following measurement methods after the mass center for knowing the above upper part of the body of human body lumbar vertebrae
Quality.
The load cell can arrange that multiple load cells 32 form force plate/platform, for measuring body support's point
Support force and position of the ground in face of human body.
Human body device for measuring force includes the display device 7, for showing the quality of human body measured body section.According to load cell
The ground for the body support's point measured faces the active force of human body, according to body section calculation method, calculated body section
Quality is shown in display device 7.
Organization of human body simplification figure is in fig. 5 it is shown that body section are as follows: 7 be neck, and 8 be trunk, and 9 be left upper arm, and 10 are
Right upper arm, 11 be left forearm, and 12 be right forearm, and 13 be left hand, and 14 be the right hand, and 15 be left thigh, and 16 be right thigh, and 17 be a left side
Shank, 18 be right leg, and 19 be left foot, and 20 be right crus of diaphragm.All names are referring to national standard GB/T 17245-2004 Chinese adult
Man human innertial parameter.It is by national standard GB/T 17245-2004 it is found that normal human's mass is symmetrical, i.e., as shown in figure 4, symmetrical
The mass center at position is on the vertical axis i.e. on coronal-plane and sagittal plane intersection.
Human body: being equivalent to rigid body by body section measurement method, and the active force of body support's point is measured using load cell
(Ni, Nj).Angular transducer is loaded onto human body measured body section, measures the angle a of measured body section and vertical axisi.By national standard know by
The position for surveying the mass center of body section, is not surveying body section, binds sensor, guarantees accident body section before measured body section posture changes
Afterwards, posture is constant.It changes in human body measured body fragment position, the power of supporting point also changes, to wherein progress power
Credit analysis calculates body section quality according to mechanical equation.
Specific measurement process is as follows:
The plane and body support's point for enabling the posture of measured body section change are in approximately the same plane: knowing that measured body section posture changes
Two supporting points A, B of plane and human body where becoming obtain measured body section by national standard GB/T 17245-2004 in approximately the same plane
Centroid position to the position of rotary joint (measured body section and the connecting joint for not surveying body section) be L.
If the quality of measured body section is mi, it is m that the human body after removing measured body section, which does not survey body section quality,j；Initial position, quilt
The angle for surveying body section and vertical axis is ai, if the midpoint on the inside of the weighing unit in same plane is coordinate origin O.By dynamometry list
Member measures, and supporting point horizontal distance of the A point away from origin O is Xi, horizontal distance of the B point away from origin is Xj, two supporting points of A, B
Active force NiAnd Nj, the horizontal distance of the mass center of measured body section to A point is y at this timei, do not survey the mass center of body section to A point it is horizontal away from
From for yj.To A point force analysis (as shown in Figure 6):
Nj(Xi+Xj)-mjgyj-migyi=0------------------------------------------- (1)
It keeping the posture for not surveying body section constant, changes measured body section posture, measured body section and vertical axis angle are aj at this time,
Origin is constant.It is measured by load cell, the position of supporting point A, B.Supporting point horizontal distance of the A point away from origin is Xi', B point away from
The horizontal distance of origin is Xj', the active force N of two supporting points of A, Bi' and Nj', water of the mass center of measured body section to A point at this time
Flat distance is yi+(Lsinaj-Lsinai)+(Xi’-Xi)=yi+ (Lsinaj-Lsinai)+Δ X does not survey the mass center of body section to A
The horizontal distance of point is yj+(Xi’-Xi)=yj+ΔX.A point force analysis is obtained:
Nj'(Xi'+Xj')-mig(yi+ΔX+L(sinaj-sinai))-mjg(yj+ Δ X)=0----------- (2)
It keeps the posture for not surveying body section constant, changes measured body section posture, measured body section and vertical axis angle are a at this timek,
Origin is constant.The position of supporting point A, B are measured by load cell.Supporting point horizontal distance of the A point away from origin is Xi", B point away from
The horizontal distance of origin is Xj", the active force N of two supporting points of A, Bi" and Nj", water of the mass center of measured body section to A point at this time
Flat distance is yi+(Lsinak-Lsinai)+(Xi”-Xi)=yi+(Lsinak-Lsinai)+Δ X ' does not survey the mass center of body section to A point
Horizontal distance be yj+(Xi”-Xi)=yj+ΔX'.A point force analysis is obtained:
Nj”(Xi”+Xj”)-mig(yi+ΔX'+L(sinak-sinai))-mjg(yj+ Δ X')=0-------- (3)
Joint type (1), (2), (3) obtain:
To solve the quality m of human body measured body section according to above formulai。
A, 7 quality calculation method of human body neck section
When gauge head neck 7, there are two supporting point A, B, national standard GB/T 17245-2004 to obtain 7 mass center m of neck for human body1Away from neck
The vertical range L of rotation0；If the quality of human body neck 7 is m1, the body mass after removing neck 7 is m2.When initial position,
Neck 7 is a with the angle of vertical axis in coronal-plane1 neck.If the load cell inner distance in coronal-plane is that midpoint is origin.
It is measured by load cell, coronal-plane inner support point horizontal distance of the A point away from origin is X0, horizontal distance of the B point away from origin is X1,
The active force of two supporting points A, B are respectively N1, N2.The horizontal distance of the supporting point A of 7 mass center of neck is y1, after removing neck 7
Mass center of human body to supporting point A horizontal distance be y0.If the intersection point of human body three-dimensional plane is origin.A point mechanical analysis is obtained
(clockwise moment is negative, and anticlockwise moment is positive):
N2(X0+X1)-m2gy0-m1gy1=0------------------------------------------- (1)
Keep the posture of accident body section constant, human body neck 7 and vertical axis angle are a2When, if human body three-dimensional plane
Intersection point is origin.Measured by load cell: coronal-plane inner support point horizontal distance of the A point away from origin is X0', B point is away from origin
Horizontal distance is X1', the active force of two supporting points A, B are respectively N1', N2'.At this time: the water of the supporting point A of 7 mass center of neck
Flat distance is y1+(X0’-X0)=y1+ΔX0, the horizontal distance of mass center of human body to supporting point A after removing neck 7 are y0+L0
(sina2-sina1)+(X0’-X0)=y1+L0(sina2-sina1)+ΔX0。(a1 neckNot equal to a2 necks, and clockwise angle
It is negative, counterclockwise angle is positive).A point mechanical analysis is obtained:
N'2(X'0+X′1)-m2g(y0+ΔX0)-m1g(y1+L0(sina2-sina1)+ΔX0)=0----- (2)
It is obtained by (1) formula-(2) formula:
N2(X0+X1)-N'2(X'0+X′1)+m2gΔX0+m1g[L0(sina2-sina1)+ΔX0]=0----------
(3)
Keep the posture of accident body section constant, human body neck 7 and vertical axis angle are a3When, if human body three-dimensional plane
Intersection point is origin.Measured by load cell: coronal-plane inner support point horizontal distance of the A point away from origin is X0", B point is away from origin
Horizontal distance is X1", the active force of two supporting points A, B are respectively N1", N2".At this time: the level of the supporting point A of 7 mass center of neck
Distance is y1+(X0”-X0)=y1+ΔX0', the horizontal distance of mass center of human body to supporting point A after removing neck 7 are y0+L0
(sina3-sina1)+(X0”-X0)=y1+L0(sina3-sina1)+ΔX0’。 (a1NeckNot equal to a3Neck, and clockwise angle
Degree is negative, and counterclockwise angle is positive).A point mechanical analysis is obtained:
N″2(X″0+X″1)-m2g(y0+ΔX'0)-m1g(y1+L0(sina3-sina1)+ΔX'0)=0---- (4)
It is obtained by (1) formula-(4) formula:
N2(X0+X1)-N″2(X″0+X″1)+m2gΔX'0+m1g[L0(sina3-sina1)+ΔX'0]=0------ (5)
Joint type (3), (5) obtain:
Calculate the quality m of neck 71。
B, 14 quality calculation method of right human hand
When surveying the right hand 14, human body two supporting points C, D obtain the mass center of the right hand 14 to wrist by national standard GB/T 17245-2004
The length in joint is L1, if 14 mass of right human hand is m4, body mass is m after removing the right hand 143。
Initial position, it is a that the right hand 14, which is rotated into vertical axis angle in coronal-plane,1 right hand, if the friendship of human body three-dimensional plane
Point is origin.Measured by load cell: coronal-plane inner support point horizontal distance of the A point away from origin is X2, level of the B point away from origin
Distance is X3, the active force of two supporting points A, B are respectively N3, N4.14 mass center of the right hand is away to mass center to supporting point A point at this time
Horizontal distance is y2, the horizontal distance of mass center of human body to supporting point A point after removing the right hand 14 is y3, to C point mechanical analysis:
N4(X2+X3)-m3gy3-m4gy2=0------------------------------------------- (6)
Keep the posture of other body sections constant, when the right hand 14 is a with vertical axis angle in coronal-plane2 right handsIf human body three
The intersection point of dimensional plane is origin.Measured by load cell: coronal-plane inner support point horizontal distance of the A point away from origin is X2', B point
Horizontal distance away from origin is X3', the active force of two supporting points A, B are respectively N3’、N4'.At this time: the support of 14 mass center of the right hand
The horizontal distance of point A is y3+L1(sina2 right hands-sina1 right hand)+(X2’-X2)=y3+L0(sina2-sina1)+ΔX2, remove right
The horizontal distance of mass center of human body to supporting point A after hand 14 are y2+(X2’-X2)=y2+ΔX2。(a1 right handNot equal to a2 right hands, and it is suitable
Hour hands angle is negative, and counterclockwise angle is positive).To C point mechanical analysis:
N'4(X'2+X′3)-m3g(y3+ΔX2)-m4g(y2+L1(sina2 arms-sina1 arm)+ΔX2)=0------ (7)
It is obtained by formula (6)-(7):
N4(X2+X3)-N'4(X'2+X′3)+m3gΔX2+m4g[L1(sina2 right hands-sina1 right hand)+ΔX2]=0------ (8)
Keep the posture of other body sections constant, when the right hand 14 is a with vertical axis angle in coronal-plane3 right handsIf human body three
The intersection point of dimensional plane is origin.Measured by load cell: coronal-plane inner support point horizontal distance of the A point away from origin is X2", B point
Horizontal distance away from origin is X3", the active force of two supporting points A, B are respectively N3”、N4".At this time: the support of 14 mass center of the right hand
The horizontal distance of point A is y3+L1(sina3 right hands-sina1 right hand)+(X2”-X2)=y3+L0(sina2-sina1)+ΔX2', it removes right
The horizontal distance of mass center of human body to supporting point A after hand 14 are y2+(X2”-X2)=y2+ΔX2’。(a1 right handNot equal to a3 right hands, and
Clockwise angle is negative, and counterclockwise angle is positive).To C point mechanical analysis:
N″4(X″2+X″3)-m3g(y3+ΔX'2)-m4g(y2+L1(sina3 arms-sina1 arm)+ΔX'2)=0------ (9)
It is obtained by formula (6)-(9):
N4(X2+X3)-N″4(X″2+X″3)+m3gΔX'2+m4g[L1(sina3 right hands-sina1 right hand)+ΔX'2]=0--- (10)
Joint type (8), (10) obtain:
That is the quality m of the right hand 144It finds out, left hand 13 is calculated using identical method.
C, 12 body section quality calculation method of human body right forearm
When surveying right forearm 12, there are two supporting point E, F in coronal-plane for human body, are obtained by national standard GB/T 17245-2004 right
The distance of the mass center of forearm 12 to elbow joint is L2, measure the length L of right forearm3.If the quality of right forearm 12 is m6, remove right
Body mass after hand 14 and right forearm 12 is m5；
Initial position, when right forearm 12 and the right hand 14 are a with vertical axis angle in coronal-plane1 right forearm、b1 right handWhen,
If the intersection point of human body three-dimensional plane is origin, measuring horizontal distance of the coronal-plane inner support point E point away from origin by load cell is
X4, horizontal distance of the F point away from origin is X5, the active force of two supporting points A, B are respectively N5, N6, the mass center of right forearm 12 arrives
The horizontal distance of supporting point E is y4, then the mass center of the right hand 14 to the horizontal distance to supporting point E is (y4-L2sina1 right forearm+
L3sina1 right forearm+L1sinb1 right hand), the horizontal distance of the mass center of human body heart to supporting point E after removing the right hand 14 and right forearm 12 are
y5.Mechanical analysis is carried out to E point and obtains (clockwise moment is negative, and anticlockwise moment is positive):
N6(X4+X5)-m4g[y4+(L3-L2)sina1 right forearm+L1sinb1 right hand]-m5gy5-m6gy4=0------ (11)
Keep the posture of accident body section constant, when right forearm 12 and the right hand 14 are respectively with vertical axis angle in coronal-plane
a2 right forearms、b2 right handsIf the intersection point of human body three-dimensional plane is origin.Measured by load cell: coronal-plane inner support point A point is away from origin
Horizontal distance be X4', horizontal distance of the F point away from origin is X5', the active force of two supporting points E, F are respectively N5’、N6'.This
When 12 mass center of right forearm to supporting point E point horizontal distance are as follows:
(y4-L2sina1 right forearm+L2sina2 right forearms+X'4-X4=y4-L2sina1 right forearm+L2sina2 right forearms+ΔX4), 14 matter of the right hand
Horizontal distance of the heart to supporting point A point are as follows:
(y4-L2sina1 right forearm+L3sina2 right forearms+L1sinb2 right hands+X'4-X4=y4-L2sina1 right forearm+L3sina2 right forearms+
L1sinb2 right hands+ΔX4), the horizontal distance of mass center of human body to supporting point E after removing the right hand 14 and right forearm 12 are y5+X4’-X4
=y5+ΔX4The support force of left and right foot two o'clock measures respectively N by load cell5', N6'.Mechanical analysis is carried out to E point to obtain
(a1 right forearmNot equal to a2 right forearms, and clockwise angle is negative, counterclockwise angle is positive):
N'6(X'4+X′5)-m4g[y4-L2sina1 right forearm+L3sina2 right forearms+L1sinb2 right hands+ΔX4]
-m5g(y5+ΔX4)-m6g(y4-L2sina1 right forearm+L2sina2 right forearms+ΔX4)=0---- (12)
N6(X4+X5)-N'6(X'4+X'5)+m4g[L3(sina2 right forearms-sina1 right forearm)+L1(sinb2 right hands-sinb1 right hand)+ΔX4]
+m5gΔX4+m6g[L2(sina2 right forearms-sina1 right forearm)+ΔX4]=0---- (13)
Keep the posture of accident body section constant, when right forearm 12 and the right hand 14 are respectively with vertical axis angle in coronal-plane
a3 right forearms、b3 right handsIf the intersection point of human body three-dimensional plane is origin.Measured by load cell: coronal-plane inner support point E point is away from origin
Horizontal distance be X4", horizontal distance of the F point away from origin is X5", the active force of two supporting points E, F are respectively N5”、N6".This
When 12 mass center of right forearm to supporting point E point horizontal distance are as follows:
(y4-L2sina1 right forearm+L2sina2 right forearms+X″4-X4=y4-L2sina1 right forearm+L2sina3 right forearms+ΔX'4), the right hand
(14) horizontal distance of the mass center to supporting point E point are as follows:
(y4-L2sina1 right forearm+L3sina2 right forearms+L1sinb2 right hands+X4”-X4=y4-L2sina1 right forearm+L3sina3 right forearms+
L1sinb3 right hands+ΔX'4), the horizontal distance of mass center of human body to supporting point A after removing the right hand 14 and right forearm 12 are y5+X4”-X4
The support force of the left and right=y5+ Δ X4 ' foot two o'clock measures respectively N by load cell5", N6".Mechanical analysis is carried out to A point to obtain
(a1 right forearmNot equal to a3 right forearms, and clockwise angle is negative, counterclockwise angle is positive):
N″6(X″4+X″5)-m4g[y4-L2sina1 right forearm+L3sina3 right forearms+L1sinb3 right hands+ΔX'4]
-m5g(y5+ΔX'4)-m6g(y4-L2sina1 right forearm+L2sina3 right forearms+ΔX'4)=0------ (14)
It is obtained by formula (11)-(14):
N6(X4+X5)-N″6(X″4+X″5)+m4g[L3(sina3 right forearms-sina1 right forearm)+L1(sinb3 right hands-sina1 right hand)+ΔX′4]
+m5gΔX′4+m6g[L2(sina3 right forearms-sina1 right forearm)+ΔX′4]=0---- (15)
Joint type (13), (15) obtain:
M in above formula4For the quality of the right hand 14, all L are it is known that find out right forearm (12) quality m6, with identical method
Find out the quality of left forearm.
D, the calculation method of 10 body section quality of human body right upper arm
When surveying right upper arm 10, there are two supporting point G, H, national standard GB/T 17245-2004 to obtain in coronal-plane for human body: human body
The distance of the mass center of right upper arm 10 to shoulder joint is L4, the length for measuring right upper arm is L5, i.e. 12 mass center of right forearm arrives shoulder joint
Distance is (L2+L5), the length of 14 mass center of the right hand to shoulder joint is (L1+L3+L5).If: the quality of human body right upper arm 10 is m8, remove
Body mass after going the right hand 14, right forearm 12 and right upper arm 10 is m7。
Initial position, when right upper arm 10, right forearm 12 in coronal-plane are respectively with vertical axis angle with the right hand 14
c1 right upper arm、a11 right forearms、b11 right handsWhen, if the intersection point of human body three-dimensional plane is origin, coronal-plane inner support point G point is measured by load cell
Horizontal distance away from origin is X6, horizontal distance of the H point away from origin is X7, the active force of two supporting points G, H are respectively N7,
N8.The horizontal distance of the mass center of right upper arm 10 to supporting point G are y6, then the mass center of right forearm 12 to supporting point G it is horizontal away from
From are as follows: (y6-L4sinc1 right upper arm+L5sinc1 right upper arm+L2sina11 right forearms)；The mass center of the right hand 14 is to the horizontal distance to supporting point G are as follows:
(y6-L4sinc1 right upper arm+L5sinc1 right upper arm+L3sina11 right forearms+L1sinb11 right hands), after removing the right hand 14 and right forearm 12
Mass center of human body to supporting point G horizontal distance be y7, mechanical analysis is carried out to G point and obtains that (clockwise moment is negative, counterclockwise force
Square is positive):
Keep the posture of accident body section constant, when right upper arm 10, right forearm 12 and the right hand 14 are in coronal-plane and vertical axis
Angle is respectively c2 right upper arms、a12 right forearms、b12 right handsIf the intersection point of human body three-dimensional plane is origin, measured in coronal-plane by load cell
Supporting point horizontal distance of the G point away from origin is X6', horizontal distance of the H point away from origin is X7', the active force of two supporting points G, H
Respectively N7', N8'.Horizontal distance of the mass center of right upper arm 10 to supporting point G at this time are as follows: (y6-L4sinc1 right upper arm+L4sinc2 right upper arms
+X'6-X6=y6-L4sinc1 right upper arm+L4sinc2 right upper arms+ΔX6), the mass center of right forearm 12 to the horizontal distance to supporting point G are as follows:
y6-L4sinc1 right upper arm+L5sinc2 right upper arms+L2sina12 right forearms+X'6-X6=y6-L4sinc1 right upper arm+L5sinc2 right upper arms+
L2sina12 right forearms+ΔX6) ；Horizontal distance of the mass center of the right hand (14) to supporting point G are as follows:
(y6-L4sinc1 right upper arm+L5sinc2 right upper arms+L3sina12 right forearms+L1sinb12 right hands+X'6-X6).Remove right upper arm
=y6-L4sinc1 right upper arm+L5sinc1 right upper arm+L3sina12 right forearms+L1sinb12 right hands+ΔX6
10, the horizontal distance of the mass center of human body after right forearm 12 and the right hand 14 to G point is y7+X6’-X6=Y7+ΔX6.To G
Point carries out mechanical analysis and obtains (c1Right upper armNot equal to c2Right upper arm, and clockwise angle is negative, counterclockwise angle is positive):
N8'(X'6+X'7)-m7g(y7+ΔX6)-m8g(y6-L4sinc1 right upper arm+L4sinc2 right upper arms+ΔX6)
-m6g[y6-L4sinc1 right upper arm+L5sinc2 right upper arms+L2sina12 right forearms+ΔX6]
-m4g[y6-L4sinc1 right upper arm+L5sinc2 right upper arms+L3sina12 right forearms+L1sinb12 right hands+ΔX6]=0-------- (17)
It is obtained by formula (16)-(17):
N8(X6+X7)-N'8(X'6+X'7)+m8g[L4(sinc2 right upper arms-sinc1 right upper arm)+ΔX6]+m7gΔX6
m6g[L5(sinc2 right upper arms-sinc1 right upper arm)+L2(sina12 right forearms-sina11 right forearms)+ΔX6]-
m4g[L5(sinc2 right upper arms-sinc1 right upper arm)+L3(sina12 right upper arms-sina11 right upper arms)+L2(sina12 right hands-sina11 right hands)+Δ
X6]=0--- (18)
Keep the posture of accident body section constant, when right upper arm 10, right forearm 12 and the right hand 14 are in coronal-plane and vertical axis
Angle is respectively c3 right upper arms、a13 right forearms、b13 right handsIf the intersection point of human body three-dimensional plane is origin, measured in coronal-plane by load cell
Supporting point horizontal distance of the G point away from origin is X6", horizontal distance of the H point away from origin is X7", the active force of two supporting points G, H
Respectively N7", N8".Horizontal distance of the mass center of right upper arm 10 to supporting point G at this time are as follows: (y6-L4sinc1 right upper arm+L4sinc3 right upper arms
+X″6-X6=y6-L4sinc1 right upper arm+L4sinc3 right upper arms+ΔX'6), the horizontal distance of the mass center of right forearm 12 to supporting point G are as follows:
y6-L4sinc1 right upper arm+L5sinc3 right upper arms+L2sina13 right forearms+X″6-X6=y6-L4sinc1 right upper arm+L5sinc3 right upper arms+
L2sina13 right forearms+X'6)；The mass center of the right hand 14 is to the horizontal distance to supporting point G are as follows:
Remove upper right
The horizontal distance of mass center of human body to G point after arm 10, right forearm 12 and the right hand 14 is y7+X6”-X6=Y7+ΔX6'.To G point into
Row mechanical analysis obtains (c1 right upper armNot equal to c3 right upper arms, and clockwise angle is negative, counterclockwise angle is positive).
N″8(X″6+X″7)-m7g(y7+ΔX'6)-m8g(y6-L4sinc1 right upper arm+L4sinc3 right upper arms+ΔX'6)
-m6g[y6-L4sinc1 right upper arm+L5sinc3 right upper arms+L2sina13 right forearms+ΔX'6]
-m4g[y6-L4sinc1 right upper arm+L5sinc3 right upper arms+L3sina13 right forearms+L1sinb13 right hands+ΔX'6]=0------ (19)
It is obtained by formula (16)-(19):
N8(X6+X7)-N″8(X″6+X″7)+m8g[L4(sinc3 right upper arms-sinc1 right upper arm)+ΔX'6]+m7gΔX'6
m6g[L5(sinc3 right upper arms-sinc1 right upper arm)+L2(sina13 right forearms-sina11 right forearms)+ΔX'6]-
m4g[L5(sinc3 right upper arms-sinc1 right upper arm)+L3(sina13 right upper arms-sina11 right upper arms)+L2(sina13 right hands-sina11 right hands)+Δ
X'6]=0--------- (20)
Joint type (18), (20) obtain:
N8(X6+X7)(ΔX'6-ΔX6)+N″8(X″6+X″7)ΔX6-N'8(X'6+X'7)ΔX'6+m8g[L4(sinc2 right upper arms-
sinc1 right upper arm)ΔX'6-
L4(sinc3 right upper arms-sinc1 right upper arm)ΔX6]+m6g[(L5(sinc2 right upper arms-sinc1 right upper arm)+L2(sina12 right forearms-
sina11 right forearms))ΔX'6-
(L5(sinc3 right upper arms-sinc1 right upper arm)-L2(sina13 right forearms-sina11 right forearms))ΔX6]+m4g[(L5(sinc2 right upper arms-
sinc1 right upper arm)+L3(sina12 right upper arms
-sina11 right upper arms)+L2(sina12 right hands-sina11 right hands))ΔX'6-(L5(sinc3 right upper arms-sinc1 right upper arm)+L3
(sina13 right upper arms-sina11 right upper arms)+L2(sina13 right hands-sina11 right hands))ΔX6]=0
That is:
Find out the quality m of right upper arm 108.The quality of left upper arm 9 can be found out with identical method.
That is the quality of right arm 10,12 and 14 are as follows: m10+m12+m14.Left arm 9,11 and 13 is found out with identical superposition calculation
Quality.
E, calculate the quality of right crus of diaphragm 20 (tiptoe is exceptionally straight in coronal-plane in calculating process)
When surveying right crus of diaphragm 20, body support's point is I, J, by national standard GB/T17245-2004, knowing the mass center of right crus of diaphragm 20 away from ankle
The length in joint is L6If the quality of human body right crus of diaphragm 20 is m10, the body mass after removing right crus of diaphragm 20 is m9。
Initial position, it is a that right crus of diaphragm 20, which is rotated into vertical axis angle in sagittal plane,1 right crus of diaphragmIf two in sagittal plane are surveyed
The midpoint of the inside length of power unit is origin, measures horizontal distance of the sagittal plane inner support point I point away from origin by load cell
For X8, horizontal distance of the J point away from origin is X9, the active force of two supporting points I, J are respectively N9、N10.20 mass center of right crus of diaphragm arrives at this time
The horizontal distance of supporting point J point is y8, the horizontal distance of mass center of human body to supporting point J point after removing right crus of diaphragm 14 is y9, to J point
Mechanical analysis obtains (clockwise moment is negative, and anticlockwise moment is positive):
N9(X8+X9)-m9gy9-m10gy8=0------------------------------------ (21)
Keep the posture of other body sections constant, when right crus of diaphragm 20 is a with vertical axis angle in sagittal plane2 rights crus of diaphragmIf in sagittal plane
Two load cells inside length midpoint be origin, sagittal plane inner support point I point is measured away from origin by load cell
Horizontal distance is X8', horizontal distance of the J point away from origin is X9', the active force of two supporting points I, J are respectively N9’、N10'.At this time
Horizontal distance of 20 mass center of right crus of diaphragm away from the supporting point j point arrived are as follows:
(y8-L6sina1 right crus of diaphragm+L6sina2 rights crus of diaphragm+X′8-X8=y8-L6sina1 right crus of diaphragm+L6sina2 rights crus of diaphragm+ΔX8).After removing right crus of diaphragm
Horizontal distance of the mass center of human body away from supporting point J are as follows: y9+X8’-X8=Y9+ΔX8。(a1 right crus of diaphragmNot equal to a2 rights crus of diaphragm, and clockwise angle is
Negative, counterclockwise angle is positive).To J point mechanical analysis:
N′9(X′8+X′9)-m9g(y9+ΔX8)-m10g[y8-L6sina1 right crus of diaphragm+L6sina2 rights crus of diaphragm+ΔX8]=0---- (22)
It is obtained by formula (21)-(22):
N9(X8+X9)-N'9(X′8+X′9)+m9gΔX8+m10g[L6sina2 rights crus of diaphragm-L6sina1 right crus of diaphragm+ΔX8]=0----- (23)
Keep the posture of other body sections constant, when right crus of diaphragm 20 is a with vertical axis angle in sagittal plane3 rights crus of diaphragmIf sagittal plane
The midpoint of the inside length of two interior load cells is origin, measures sagittal plane inner support point I point away from origin by load cell
Horizontal distance be X8", horizontal distance of the J point away from origin is X9", the active force of two supporting points I, J are respectively N9”、N10".This
When horizontal distance of 20 mass center of right crus of diaphragm away from the supporting point j point arrived are as follows:
y8-L6sina1 right crus of diaphragm+L6sina3 rights crus of diaphragm+X″8-X8=y8-L6sina1 right crus of diaphragm+L6sina3 rights crus of diaphragm+ΔX′8.After removing right crus of diaphragm
Horizontal distance of the mass center of human body away from supporting point J is y9+X8”-X8=Y9+ΔX8’。(a1 right crus of diaphragmNot equal to a3 rights crus of diaphragm, and clockwise angle is
Negative, counterclockwise angle is positive).To J point mechanical analysis:
N″9(X″8+X″9)-m9g(y9+ΔX′8)-m10g[y8-L6sina1 right crus of diaphragm+L6sina3 rights crus of diaphragm+ΔX′8]=0------ (24)
It is obtained by formula (21)-(24):
N9(X8+X9)-N″9(X″8+X″9)+m9gΔX′8+m10g[L6sina3 rights crus of diaphragm-L6sina1 right crus of diaphragm+ΔX′8]=0---- (25)
Joint type (23), (25) obtain:
20 mass for calculating human body right crus of diaphragm are m10, the quality of left foot 19 is calculated with identical method.
F, the quality of human body right leg 18 is calculated
When measuring right leg 18, there are two supporting point K, L in sagittal plane for human body.By national standard GB/T 17245-2004
In, know that the mass center of human body right leg 18 away from kneed distance is L7, the length of human body right leg 18 is L8, 20 mass center of right crus of diaphragm arrives
Kneed distance is (L6+L8)；If the quality of right leg is m12, the quality for removing human body after right leg 18 and right crus of diaphragm 20 is
m11。
Initial position, when right leg 18 and right crus of diaphragm 20 are a with vertical axis angle in sagittal plane1 right leg、b1 right crus of diaphragmWhen,
If the midpoint of the inside length of two load cells in coronal-plane is origin, sagittal plane inner support point K is measured by load cell
Horizontal distance of the point away from origin is X10, horizontal distance of the L point away from origin is X11, two supporting point K, L active forces are distinguished at this time
For N11, N12.The horizontal distance of the mass center of right leg 18 to body support's point K are y10, then the mass center of right crus of diaphragm 20 is to supporting point K
Horizontal distance are as follows:
(y10-L7sina1 right leg+L8sina1 right leg+L6sinb1 right crus of diaphragm), the mass center of human body after removing right leg 18 and right crus of diaphragm 20
Horizontal distance to supporting point K is y11, mechanical analysis is carried out to K point and obtains (clockwise moment is negative, and anticlockwise moment is positive):
N12(X10+X110)+m10g(y10-L7sina1 right leg+L8sina1 right leg+L6sinb1 right crus of diaphragm)-m11gy11+m12gy10=
0------(26)
Keep the posture of accident body section constant, when right leg 18 and right crus of diaphragm 20 are respectively with vertical axis angle in sagittal plane
a2 right legs、b2 rights crus of diaphragm, (a1 right legNot equal to a2 right legs, and clockwise angle is negative, counterclockwise angle is positive), if two in sagittal plane
The midpoint of the inside length of load cell is origin, by load cell measure coronal-plane inner support point K point away from origin it is horizontal away from
From for X10', horizontal distance of the L point away from origin is X11', two supporting point K, L active forces are respectively N at this time11', N12'.At this time
Horizontal distance of 18 mass center of right leg to supporting point K point are as follows:
(y10-L7sina1 right leg+L7sina2 right legs+X′10-X10=y10-L7sina1 right leg+L7sina2 right legs+ΔX10), right crus of diaphragm
Horizontal distance of 20 mass centers to supporting point K point are as follows:
(y10-L7sina1 right leg+L8sina2 right legs+L6sinb2 rights crus of diaphragm+X′10-X10=y10-L7sina1 right leg+L8sina2 right legs+
L6sinb2 rights crus of diaphragm+ΔX10), the horizontal distance of mass center of human body to K point after removing right leg 18 and right crus of diaphragm 20 is y11+x10’-x10=
y11+Δx10.(clockwise moment is negative, and anticlockwise moment is positive) is obtained to K point mechanical analysis:
N′12(X′10+X′11)+m10g(y10-L7sina1 right leg+L8sina2 right legs+L6sinb2 rights crus of diaphragm+ΔX10)
-m11g(y11+ΔX10)+m12g(y10-L7sina1 right leg+L7sina2 right legs+ΔX10)=0-------- (27)
It is obtained by formula (26)-(27):
N12(X10+X11)-N′12(X′10+X′11)+m10g[L8(sina1 right leg-sina2 right legs)+L6(sinb1 right crus of diaphragm-sinb2 rights crus of diaphragm)-
ΔX10]
+m11gΔX10+m12g(L7(sina1 right leg-sina2 right legs)-ΔX10)=0---- (28)
Keep the posture of accident body section constant, when right leg 18 and right crus of diaphragm 20 are respectively with vertical axis angle in sagittal plane
a3 right legs、b3 rights crus of diaphragm, (a1 right legNot equal to a3 right legs, and clockwise angle is negative, counterclockwise angle is positive), if two in coronal-plane
The midpoint of the inside length of load cell is origin, by load cell measure sagittal plane inner support point K point away from origin it is horizontal away from
From for X10", horizontal distance of the L point away from origin is X11", two supporting point K, L active forces are respectively N at this time11", N12".At this time
Horizontal distance of 18 mass center of right leg to supporting point K point are as follows:
(y10-L7sina1 right leg+L7sina3 right legs+X″10-X10=y10-L7sina1 right leg+L7sina3 right legs+ΔX′10), right crus of diaphragm
Horizontal distance of 20 mass centers to supporting point K point are as follows:
(y10-L7sina1 right leg+L8sina3 right legs+L6sinb3 rights crus of diaphragm+X″10-X10=y10-L7sina1 right leg+L8sina3 right legs+
L6sinb3 rights crus of diaphragm+ΔX′10), the horizontal distance of mass center of human body to K point after removing right leg 18 and right crus of diaphragm 20 is y11+x10”-x10
=y11+Δx10'.To K point mechanical analysis:
N″12(X″10+X″11)+m10g(y10-L7sina1 right leg+L8sina3 right legs+L6sinb3 rights crus of diaphragm+ΔX′10)
-m11g(y11+ΔX′10)+m12g(y10-L7sina1 right leg+L7sina3 right legs+ΔX′10)=0------ (29)
It is obtained by formula (26)-(29):
N12(X10+X11)-N′12(X′10+X′11)+m10g[L8(sina1 right leg-sina3 right legs)+L6(sinb1 right crus of diaphragm-sinb3 rights crus of diaphragm)-
ΔX′10]
+m11gΔX′10+m12g(L7(sina1 right leg-sina3 right legs)-ΔX′10)=0--- (30)
Joint type (28), (30) obtain:
The quality for calculating right leg 18 is m12, the quality of left leg 17 is calculated with identical method.
G, the measurement of 16 mass of right thigh
When measuring right thigh and calf 16, there are two supporting point P, Q in sagittal plane for human body, by national standard GB/T 17245-2004
In, the distance for knowing 16 mass center of human body right thigh to hip joint is L9, the length of right thigh 16 is L10, i.e. the mass center of right leg 18
Distance to hip joint is (L7+L10), the distance of mass center to the hip joint of right crus of diaphragm 20 is (L6+L8+L10)；If the quality of right thigh
For m14, the body mass after removing right leg (16,18,20) is m13。
Initial position, when right thigh 16, right leg 18 and right crus of diaphragm 20 are respectively with vertical axis angle in sagittal plane
c1 right thigh、a11 right legs、b11 rights crus of diaphragmWhen, if the midpoint of the inside length of two load cells in sagittal plane is origin, by load cell
Measuring coronal-plane inner support point horizontal distance of the P point away from origin is X12, horizontal distance of the Q point away from origin is X13, two at this time
The active force of force position P, Q are respectively N13, N14.The horizontal distance of the mass center of right thigh 20 to body support's point P are y12, then
The mass center of right leg 18 to supporting point P horizontal distance be (y12-L9sinc1 right thigh+L10sinc1 right thigh+L7sina11 right legs)。
The mass center of right crus of diaphragm 20 to supporting point E horizontal distance be (y12-L9sinc1 right thigh+L10sinc1 right thigh+L8sina11 right legs+
L6sinb11 rights crus of diaphragm), the horizontal distance of mass center of human body to P point after removing right leg (16,18,20) is y13, P point mechanical analysis is obtained
(clockwise moment is negative, and anticlockwise moment is positive):
N14(X12+X13)+m14gy12-m13gy13+m12g(y12-L9sinc1 right thigh+L10sinc1 right thigh+L7sina11 right legs)
+m10g(y12-L9sinc1 right thigh+L10sinc1 right thigh+L8sina11 right legs+L6sinb11 rights crus of diaphragm)=0----- (31)
Keep the posture of accident body section constant, when right thigh 16, right leg 18 and right crus of diaphragm 20 are in sagittal plane and vertical axis
Angle is respectively c2 right thighs、a12 right legs、b12 rights crus of diaphragmIf the midpoint of the inside length of two load cells in sagittal plane is origin, by
It is X that load cell, which measures coronal-plane inner support point horizontal distance of the P point away from origin,12', horizontal distance of the Q point away from origin is X13',
The active force of two force positions P, Q are respectively N at this time13', N14’。(c1 right thighNot equal to c2 right thighs, and clockwise angle is negative,
Counterclockwise angle is positive), then the mass center of right thigh 20 to the horizontal distance to fulcrum P are as follows:
(y12-L9sinc1 right thigh+L9sinc2 right thighs+X′12-X12=y12-L9sinc1 right thigh+L9sinc2 right thighs+ΔX12),
Horizontal distance of the mass center of right leg 18 to supporting point P are as follows:
(y12-L9sinc1 right thigh+L10sinc2 right thighs+L7sina12 right legs+X′12-X12=y12-L9sinc1 right thigh+L10sinc2 right thighs
+L7sina12 right legs+ΔX12)。
Horizontal distance of the mass center of right crus of diaphragm 20 to supporting point P are as follows:
The horizontal distance of mass center of human body to P point after removing right leg (16,18,20) is y13+X12’-X12=y13+ΔX12,
(clockwise moment is negative, and anticlockwise moment is positive) is obtained to P point mechanical analysis:
N′14(X′12+X′13)+m14g(y12-L9sinc1 right thigh+L9sinc2 right thighs+ΔX12)-m13g(y13+ΔX12)+m12g
(y12-
L9sinc1 right thigh+L10sinc2 right thighs+L7sina12 right legs+ΔX12)+m10g(y12-L9sinc1 right thigh+L10sinc2 right thighs
+L8sina12 right legs+L6sinb12 rights crus of diaphragm+ΔX12)=0---- (32)
It is obtained by formula (31)-(32):
N14(X12+X13)-N′14(X′12+X′13)+m14g(L9(sinc1 right thigh-sinc2 right thighs)-ΔX12)+m12g[L10
(sinc1 right thigh
-sinc2 right thighs)+L7(sina11 right legs-sina12 right legs)-ΔX12]+m10g[L10(sinc1 right thigh-sinc2 right thighs)
+L8(sina11 right legs-sina12 right legs)+L6(sinb11 rights crus of diaphragm-sinb12 rights crus of diaphragm)-ΔX12]=0-- (33)
Keep the posture of accident body section constant, when right thigh 16, right leg 18 and right crus of diaphragm 20 are in sagittal plane and vertical axis
Angle is respectively c3 right thighs、a13 right legs、b13 rights crus of diaphragmIf the midpoint of the inside length of two load cells in sagittal plane is origin, by
It is X that load cell, which measures coronal-plane inner support point horizontal distance of the P point away from origin,12", horizontal distance of the Q point away from origin is X13",
The active force of two force positions P, Q are respectively N at this time13", N14”。(c1 right thighNot equal to c3 right thighs, and clockwise angle is negative,
Counterclockwise angle is positive), then the mass center of right thigh 20 to the horizontal distance to fulcrum P are as follows:
(y12-L9sinc1 right thigh+L9sinc3 right thighs+X″12-X12=y12-L9sinc1 right thigh+L9sinc3 right thighs+ΔX′12),
The mass center of right leg 18 is to the horizontal distance to supporting point P are as follows:
(y12-L9sinc1 right thigh+L10sinc3 right thighs+L7sina13 right legs+X′12-X12=y12-L9sinc1 right thigh+L10sinc3 right thighs
+L7sina13 right legs+ΔX′12),
The mass center of right crus of diaphragm 20 is to the horizontal distance to supporting point P are as follows:
The horizontal distance of mass center of human body to P point after removing right leg (16,18,20) is y13+X12”-X12=y13+ΔX12',
(clockwise moment is negative, and anticlockwise moment is positive) is obtained to P point mechanical analysis:
N″14(X″12+X″13)+m14g(y12-L9sinc1 right thigh+L9sinc3 right thighs+ΔX′12)-m13g(y13+ΔX′12)+m12g
(y12-
L9sinc1 right thigh+L10sinc3 right thighs+L7sina13 right legs+ΔX′12)+m10g(y12-L9sinc1 right thigh+L10sinc3 right thighs
+L8sina13 right legs+L6sinb13 rights crus of diaphragm+ΔX′12)=0---- (34)
It is obtained by formula (31)-(34):
N14(X12+X13)-N″14(X″12+X″13)+m14g(L9(sinc1 right thigh-sinc3 right thighs)-ΔX′12)+m12g[L10
(sinc1 right thigh
-sinc3 right thighs)+L7(sina11 right legs-sina13 right legs)-ΔX′12]+m10g[L10(sinc1 right thigh-sinc3 right thighs)
+L8(sina11 right legs-sina13 right legs)+L6(sinb11 rights crus of diaphragm-sinb13 rights crus of diaphragm)-ΔX′12]=0
Joint type (33), (35) obtain:
Calculate the quality m of right thigh 1614, the quality of left thigh 15 is calculated with identical method.
The quality of i.e. right leg (16,18,20) are as follows: m10+m12+m14。
H, the quality of trunk 8 is set as m15, then m15Equal to the quality that human body gross mass subtracts four limbs and neck.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of body section apparatus for measuring quality, which is characterized in that including pedestal (1) and be connected on pedestal first
Load cell (3), the second load cell (5), third load cell (2), the 4th load cell (4) and the 5th measuring unit
(6), wherein
First load cell (3) and the second load cell (5) are for measuring two body supports in human coronary face
The active force of point and position；The third load cell (2) or the 5th measuring unit (6) and the 4th load cell (4), for surveying
The active force in two human body supporting points of human body sagittal plane and position are measured,
The third load cell (2) is for human hands as the active force of measurement body support's point and position, institute when supporting
The first load cell (3), the second load cell (5), the 4th load cell (4) and the 5th measuring unit (6) are stated for human body foot
The active force of measurement body support's point and position when portion is as support.
2. body section apparatus for measuring quality according to claim 1, which is characterized in that the third load cell, institute
The weighing unit for stating the 4th load cell and the 5th load cell includes bottom plate and several force-measuring sensings for being connected on bottom plate
Device, the supporting plate being supported on several load cells, several load cells are arranged in sagittal plane.
3. body section apparatus for measuring quality according to claim 2, which is characterized in that the third load cell (2)
It is connect with support rod (22), wherein the support rod (22) is used to adjust the height of third load cell (2), the support rod
The holding screw (21) of the bar that can be mutually slided up and down including two and the relative position for fixing two bars.
4. body section apparatus for measuring quality according to claim 1, which is characterized in that first load cell (3)
Include bottom plate, several load cells being connected on bottom plate with the second load cell (5) and is supported on several dynamometry
Vola supporting plate on sensor, several load cells are arranged in coronal-plane.
5. body section apparatus for measuring quality according to claim 1, which is characterized in that further include display device (7), use
In the quality of display human body measured body section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820225905.2U CN208822751U (en) | 2018-02-08 | 2018-02-08 | Body section apparatus for measuring quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820225905.2U CN208822751U (en) | 2018-02-08 | 2018-02-08 | Body section apparatus for measuring quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208822751U true CN208822751U (en) | 2019-05-07 |
Family
ID=66303609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820225905.2U Active CN208822751U (en) | 2018-02-08 | 2018-02-08 | Body section apparatus for measuring quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208822751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637959A (en) * | 2020-06-11 | 2020-09-08 | 中汽研汽车检验中心（天津）有限公司 | Method for testing position and quality of mass center of each part of human body |
-
2018
- 2018-02-08 CN CN201820225905.2U patent/CN208822751U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637959A (en) * | 2020-06-11 | 2020-09-08 | 中汽研汽车检验中心（天津）有限公司 | Method for testing position and quality of mass center of each part of human body |
| CN111637959B (en) * | 2020-06-11 | 2021-12-03 | 中汽研汽车检验中心（天津）有限公司 | Method for testing position and quality of mass center of each part of human body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Robert-Lachaine et al. | Validation of inertial measurement units with an optoelectronic system for whole-body motion analysis | |
| Robert-Lachaine et al. | Accuracy and repeatability of single-pose calibration of inertial measurement units for whole-body motion analysis | |
| Hasan et al. | Simultaneous measurement of body center of pressure and center of gravity during upright stance. Part I: Methods | |
| Glanville et al. | The maximum amplitude and velocity of joint movements in normal male human adults | |
| Youdas et al. | Reliability of measurements of lumbar spine sagittal mobility obtained with the flexible curve | |
| Monnet et al. | Comparison of the SCoRE and HA methods for locating in vivo the glenohumeral joint centre | |
| Brochard et al. | Accuracy and reliability of three methods of recording scapular motion using reflective skin markers | |
| Engin et al. | On the biomechanics of human shoulder complex—I. Kinematics for determination of the shoulder complex sinus | |
| Hebert et al. | A method of measuring three-dimensional scapular attitudes using the optotrak probing system | |
| CN108309301B (en) | Human body segment quality measuring method | |
| CN208822751U (en) | Body section apparatus for measuring quality | |
| JP4714799B1 (en) | angle gauge | |
| Duggar | The center of gravity of the human body | |
| CN108392204A (en) | Body section mass measuring method and device | |
| Iino et al. | Validity of the top-down approach of inverse dynamics analysis in fast and large rotational trunk movements | |
| Slavens et al. | The biomechanics of upper extremity kinematic and kinetic modeling: applications to rehabilitation engineering | |
| Hanawa et al. | Validity of inertial measurement units in assessing segment angles and mechanical energies of elderly persons during sit-to-stand motion | |
| Myers et al. | Reliability and precision of in vivo scapular kinematic measurements using an electromagnetic tracking device | |
| Jin et al. | An estimation of knee and ankle joint angles during extension phase of standing up motion performed using an inertial sensor | |
| Lester et al. | Range of motion of the metacarpophalangeal joint in rheumatoid patients, with and without a flexible joint replacement prosthesis, compared with normal subjects | |
| Lin et al. | Sensors on the humerus are not necessary for an accurate assessment of humeral kinematics in constrained movements | |
| CN206491786U (en) | A kind of self-service balance performance tester | |
| CN205795653U (en) | A kind of active kinaesthesia Azimuth testing device being parallel to people's body axis | |
| Ferrario et al. | Asymmetry of the active nonweightbearing foot and ankle range of motion for dorsiflexion‐plantar flexion and its coupled movements in adults | |
| Mieszała et al. | Examining relationships of the anterior pelvic tilt angle with the anterior-posterior curvatures and elongation of the spine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |