CN102323395A - Device for testing fabric water movement resistance and testing method thereof - Google Patents
Device for testing fabric water movement resistance and testing method thereof Download PDFInfo
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- CN102323395A CN102323395A CN201110218351A CN201110218351A CN102323395A CN 102323395 A CN102323395 A CN 102323395A CN 201110218351 A CN201110218351 A CN 201110218351A CN 201110218351 A CN201110218351 A CN 201110218351A CN 102323395 A CN102323395 A CN 102323395A
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Abstract
The invention discloses a device for fabric water movement resistance. The device comprises a water tank, a T-shaped floating body for bearing the fabric, a dragging transmission device, a motor traction system and a pressure sensor; the T-shaped floating body is composed of a top plate and a testing plate, the top plate is U-shaped, and the length of the top plate is longer than that of the testing plate; an included angle between a vertical plate and the testing plate is 90 degrees; the dragging transmission device comprises three pulleys in an isosceles triangle arrangement mode and in the same direction with the testing plate; a dragging line is arranged among the pulleys; one end of the dragging line is connected with the T-shaped floating body; the motor traction system comprises a motor, a reel and a brake device; and the other end of the dragging line is connected with the motor. The device provided by the invention is simple for manufacturing, low in cost and suitable for a libratory; and the method is simple and convenient, accurate in data measurement, and suitable for comparing water resistances of different fabrics. The device and method provided by the invention can provide powerful data support for later research and product fabric selection.
Description
Technical field
The present invention relates to a kind of proving installation and method, specifically a kind of device and method of testing thereof of test fabric lining underwater exercise resistance.
Background technology
Swimming is an athletics sports campaign that technology content is very high.The development of science and technology, the level that has greatly advanced swimming to race.Like the use of shark clothes, making is that the friction of athletes ' body and water further reduces, and swimming rate is able to lifting.
From the training angle, increase the measure and the method for the resistance of motion, can make the sportsman in training such as physical efficiency, action, posture, obtain bigger income.Increase resistance way commonly used is that the rubber bar is dilatory, ankle resistance rubber band, wear common long sleeves clothing etc.Wherein preceding two to belong to body part stressed, considers from the training angle, and this method maybe be to the action deleterious impact.If develop the clothes that whole body dress has resistance, this whole body is evenly stressed increases the resistance effect, can be stronger to training.Research and development can quantitative measurement fabric resistance lining method, to judge, development drag force for exercise clothes are crucial work.The present invention comes from the actual research work of research and development resistance exercise swimming suite, and the method for resistance in a kind of quantitative test fabric water is provided.
Summary of the invention
The device that the objective of the invention is to remedy the blank of prior art and propose a kind of test fabric lining underwater exercise resistance.
Another object of the present invention is to provide a kind of method of utilizing said apparatus to carry out the fabric resistance measurement.
In order to realize the object of the invention, the present invention adopts following concrete technical scheme:
A kind of device of test fabric lining underwater exercise resistance, said device comprise the T type floating body of tank, bearing fabric lining, dilatory gearing, motor trailer system and pressure transducer; Said T type floating body is made up of top board and test board, and this top board is the U type, and top board length is longer than test board, and the angle between vertical panel and the test board is 90 degree; Said T type floating body places tank; Said dilatory gearing comprises three pulleys, and these three pulleys are that isosceles triangle is arranged and be in same direction with test board, are provided with dilatory line between the pulley, and this dilatory line one end connects T type floating body; Said electric traction system comprises motor, reel and clamping device, and the said dilatory line other end connects this motor; Said pressure capsule system touch force sensor is formed with the controller of weighing, and this pressure transducer is arranged in the bottom of the intermediate pulley of three pulleys, and is connected with the controller of weighing.
Be provided with supporter between said intermediate pulley and the said pressure transducer.
Said U template front end is the arc limit, and said arc limit is provided with the suspension part of the dilatory line of suspension.
The approaching sidewall of said tank and pulley is provided with groove.
Long 5～6 meters of said tank, wide 0.6～1.0 meter, high 0.4～0.6 meter.
1/2 long place of tank is provided with mark 1, is provided with mark 2 with the mark 12 meters nearly groove one side places that are separated by.
A kind of method of test fabric lining underwater exercise resistance, said method step is following:
(1) utilize bonding agent to be pasted and fixed on T type floating body test board both sides lining to be measured, placed 24 hours, treating that bonding agent parches can carry out testing in the water;
(2) be filled to groove in the tank, T type floating body places tank other end central authorities, and the dilatory line of adjustment makes dilatory line be level, afterwards, and opening pressure sensor-based system switch, record pressure initial value;
(3) motor is opened, and T type floating body drives towards the other end by an end of tank, when running to mark 1 place, picks up counting, and runs to dried up slot marker 2 places timing and stops.To mark 2 traffic coverages, read the pressure capsule system reading at mark 1, deduct the pressure initial value with this reading and be F
VerticallyWhen timing stops, disable motor, pulley stops operating, and accomplishes test; Repeat 5 times and get its arithmetic mean.
Comprising also that step (4) utilize to be divided makes every effort to make a concerted effort: the vertical drop of intermediate pulley and two head sheaves is made as a, horizontal range is made as b, utilize a
2+ b
2=c
2Formula can be obtained hypotenuse c; According to F/F
Vertically=c/a can calculate F.
In test process, the resistance F of test substrate lining at first
The substrate lining, the resistance F of test resistance lining then
The resistance lining, utilize F
Resistance in the water=F
The resistance lining-F
The substrate lining, said substrate lining and resistance lining are lining material to be measured, are fixed with convexity on the said resistance lining.
Be fixed with the triangular hill that dislocation is arranged on the said resistance lining.
Beneficial effect of the present invention:
Device preparation according to the invention is simple, with low cost, be very suitable for the laboratory and use, and the inventive method is simple and easy to do, and measurement data is accurate, is fit to the comparison of resistance in the water between the different linings.For later stage scientific research and product lining select to provide strong data support.
Exploitativeness of the present invention and outstanding substantive distinguishing features and good effect can be able to embody through following instance, but do not limit its scope.
Description of drawings
Fig. 1 is a T type floating body structural representation, upper left position side view, and upper right is front view, a left side is vertical view down;
Fig. 2 is the dilatory transmission structures synoptic diagram of the present invention;
Fig. 3 is the calculation of pressure synoptic diagram;
Fig. 4 is the sink structure synoptic diagram.
Embodiment
Embodiment 1 apparatus of the present invention
1, test special-purpose tank: cell body 1 material can be processed with stainless steel, fiberglass, brick concrete etc., and is long 5～6 meters, wide 0.6～1.0 meter, high 0.4～0.6 meter.Have one to reserve dilatory line groove 2 at its pull-offs direction, water surface elevation is identical with groove height.
2, the T type floating body of bearing fabric lining: the floating body that the present invention designed is as shown in Figure 1; T type buoyancy aid is to be bonded by end face that foam is expected 3 and vertical checkout plate 4; Test board can adopt plastic material; And process the fore shape with stable operation, and dilatory hook is installed at front end cusp place at front end of the top surface.Utilize little iron nail to regulate the difference of Different Weight lining weight.When testing, need to adopt method of attaching that desire is tested lining earlier and be fixed on vertical panel both sides (upstream face will keep the globality of lining), treating that bonding agent parches can carry out testing in the water.The wide 160mm of top board, thick 30mm, the long 270mm of test board, thick 1.5mm.
3, dilatory gearing
The present invention utilizes the motor drives pulley, dilatory T type floating body tangential movement forward, thus produce resistance because friction takes place for lining that adheres on the test board and water.This power passes on the dilatory line 5; Owing on the dilatory line 5 device for measuring force can't be installed; The present invention designs the pull-alongs force actuators; But make the power of level change the gaging pressure (support bar is established in intermediate pulley 6 bottoms, support bar bottom placement force sensor) that produces after the direction with pulley, thereby calculate dilatory force according to mechanics principle.
Pull-alongs force actuators synoptic diagram is as shown in Figure 2.
4, motor trailer system: adopt conventional miniature motor, be equipped with reel and clamping device.The size of reel can be changed size according to the demand of dilatory speed; After outage, the motor runner is because inertia also will be rotated further, and clamping device can in time stop the rotation of motor.
5, pressure sensor systems: pressure sensor systems is made up of FS series touch force sensor and the CH controller of weighing.The present invention adopts FSG-15NIA type sensor, and the touch scope is 0.0～1500.0 gram, and range is: 290mV～430mV, sensitivity 0.24mV/ gram force.The CH controller technical indicator of weighing is: input signal is mV, measures control cycle: 60mS, and Measurement Resolution 1/16000 (14 A/D converters) is measured display precision: 0.2%F.S.
1, at first tailors identical substrate lining of area and resistance lining (27 centimetres of long 2x; Wide 12 centimetres); Substrate lining and resistance lining are lining material to be measured, and the difference of substrate lining and resistance lining is that it is protruding that 2 * 61 staggered triangle pocket water have been fixed on resistance lining surface; Adopt the method for attaching material to be fixed on test board both sides (globality that upstream face will keep) substrate lining or resistance lining, placed 24 hours, treating that bonding agent parches can carry out testing in the water;
2, an experimenter will draw line and be connected with T type buoyancy aid, place tank one end water surface middle part, and both hands are comforted.Second experimenter is the tank other end (dilatory line places in the groove), and adjustment electric machine winding wheel makes and drags line to be level.Afterwards, the opening pressure sensing switch, record pressure initial value (because the square litter itself of intermediate pulley and fixed block has gravity, so the pressure initial value is arranged) prepares to start motor.At this moment, stopwatch mixed up when the 3rd experimenter should use tricks common physical culture, prepared record T type floating motion and arrived the working time in two meters intervals, middle part, pond, and distance (2 meters) and the time (stopwatch reading) has been arranged, and just can obtain the travelling speed of T type buoyancy aid.Before starting motor, second laboratory technician (motor opener), a palm is held motor switch, and the another hand will be held the motor braking handle, so that stop to drag the line wheel to rotate at any time.In addition, motor opener, or the person of assigning who reads taker and experiment command of pressure sensor readings.
When 3, the experiment command is assigned; Hand steered T type floating body person decontrols buoyancy aid rapidly, and the experiment command person of assigning opens motor simultaneously, and T type floating body is dragged to the other end by an end of tank; When running to tank middle part (mark 1); The 3rd experimenter picks up counting, and runs to mark 2 places from 1 two meters of mark, and timing stops.Interval in the operation timing, the electric motor starting personnel read the pressure capsule system reading.When timing stopped, the electric motor starting personnel can begin the disable motor switch, and afterwards, the braking reel stops operating.Accomplished test.Repeat 5 times and get its arithmetic mean.
4, change the reel of another size after, can carry out the resistance measurement under another speed according to same experimental technique.
1, utilize branch to make every effort to make a concerted effort
Experiment moves forward via pulley down the dilatory of motor with T type floating body, through the transmission of pulley gearing, towing tension is decomposed into horizontal component and vertical stress component, and vertical stress component numerical value available pressure sensor accurately shows.According to resolution of force figure (see figure 3), two right-angle sides of right-angle triangle have been arranged, the triangle hypotenuse is according to a
2+ b
2=c
2Formula can be obtained hypotenuse c.Size among Fig. 2 is brought in the formula, obtain c
2=a
2+ b
2=140
2+ 440
2=213200, so c=462.Calculate according to formula (1), work as F
VerticallyNumerical value known (being read by pressure transducer), the F that makes a concerted effort can obtain.
F/F
Vertically=462/140 (1)
2, the deduction of substrate lining resistance
There is frictional resistance in the transmission system of power among the present invention, and dilatory like this power should be made up of with other resistance lining resistance and all friction force of system.And our real concern is the lining resistance, so just relates to the problem that all friction force of system and other resistance are got rid of.The method of this method invention deduction " background " is come all friction force of deduction system and other resistance.Specific practice is: carry out the resistance measurement and the calculating of " substrate lining " with the substrate lining according to method of testing earlier, draw F
The substrate lining, use resistance lining (on the substrate lining, being fixed with the resistance convexity) to carry out the resistance measurement and the calculating of " resistance lining " again according to method of testing, draw F
Resistance area Material, both differences are resistance in the water of resistance lining.Computing formula is formula (2):
F
Resistance in the water=F
The resistance lining-F
The substrate lining(2)
Concrete Test Example
Resistance measurement in the embodiment 4 substrate lining water
According to method of testing of the present invention, common gambroon lining has been carried out resistance measurement in the water.Lining and water engaging surface are long-pending to be 2 * 27 * 12=0.0648m
2The travelling speed experiment value is 0.50 meter per second in the water, and pressure sensor readings 70.97 grams (have been deducted initial value, have been F
Vertically), according to formula (1), can calculate and make a concerted effort
F
The substrate lining=462/140 * 70.97=229.52 (gram)=2.295 (newton) (1 gram=9.8067 * 10
-3Newton).
Resistance measurement in the embodiment 5 substrate lining water
According to method of testing of the present invention, common gambroon lining has been carried out resistance measurement in the water, lining and water engaging surface are long-pending to be 2 * 27 * 12=0.0648m
2The travelling speed experiment value is 0.67 meter per second in the water, and pressure sensor readings 103.27 grams (have been deducted initial value, have been F
Vertically), according to formula (1), can calculate F with joint efforts
The substrate lining=462/140 * 103.27=340.79 (gram)=3.340 (newton) (1 gram=9.8067 * 10
-3Newton).
Resistance measurement in the embodiment 6 substrate lining water
According to method of testing of the present invention, common gambroon lining has been carried out resistance measurement in the water, lining and water engaging surface are long-pending to be 2 * 27 * 12=0.0648m
2The travelling speed experiment value is 0.77 meter per second in the water, and pressure sensor readings 163.33 grams (have been deducted initial value, have been F
Vertically), according to formula (1), can calculate F with joint efforts
The substrate lining=462/140 * 163.33=538.99 (gram)=5.282 (newton) (1 gram=9.8067 * 10
-3Newton).
Resistance measurement in the embodiment 7 resistance lining water
According to method of testing of the present invention, (at area is 2 * 27cm * 12cm=0.0648m to the resistance lining
2Common gambroon lining on to have fixed 2 * 61 staggered triangle pocket water protruding) carried out resistance measurement in the water, the travelling speed experiment value is 0.50 meter per second in the water, pressure sensor readings 131.14 grams (have been deducted initial value, have been F
Vertically), according to formula (1), can calculate F with joint efforts
The resistance lining=462/140 * 131.14=432.76 (gram)=4.241 (newton) (1 gram=9.8067 * 10
-3Newton).
Resistance measurement in the embodiment 8 resistance lining water
According to method of testing of the present invention, (at area is 2 * 27cm * 12cm=0.0648m to the resistance lining
2Common gambroon lining on to have fixed 2 * 61 staggered triangle pocket water protruding) carried out resistance measurement in the water, the travelling speed experiment value is 0.67 meter per second in the water, pressure sensor readings 202.02 grams (have been deducted initial value, have been F
Vertically), according to formula (1), can calculate F with joint efforts
The resistance lining=462/140 * 202.02=666.67 (gram)=6.533 (newton) (1 gram=9.8067 * 10
-3Newton).
Resistance measurement in the embodiment 9 resistance lining water
According to method of testing of the present invention, (at area is 2 * 27cm * 12cm=0.0648m to the resistance lining
2Common gambroon lining on to have fixed 2 * 61 staggered triangle pocket water protruding) carried out resistance measurement in the water, the travelling speed experiment value is 0.77 meter per second in the water, pressure sensor readings 248.10 grams (have been deducted initial value, have been F
Vertically), according to formula (1), can calculate F with joint efforts
The resistance lining=462/140 * 248.10=818.73 (gram)=8.024 (newton) (1 gram=9.8067 * 10
-3Newton).
Calculation of resistance in the embodiment 10 resistance lining water
According to calculation of resistance of the present invention, under same movement speed=0.5 meter per second situation, utilize formula (2) that the resistance lining has been carried out calculation of resistance in the water, F
Resistance in the water=F
The resistance lining-F
The substrate lining=4.241-2.295=1.946 (newton).
Calculation of resistance in the embodiment 11 resistance lining water
According to calculation of resistance of the present invention, under same movement speed=0.67 meter per second situation, utilize formula (2) that the resistance lining has been carried out calculation of resistance in the water, F
Resistance in the water=F
The resistance lining-F
The substrate lining=6.533-3.340=3.193 (newton).
Calculation of resistance in the embodiment 12 resistance lining water
According to calculation of resistance of the present invention, under same movement speed=0.77 meter per second situation, utilize formula (2) that the resistance lining has been carried out calculation of resistance in the water, F
Resistance in the water=F
The resistance lining-F
The substrate lining=8.024-5.282=2.742 (newton).
Claims (10)
1. the device of a test fabric lining underwater exercise resistance is characterized in that, said device comprises the T type floating body of tank, bearing fabric lining, dilatory gearing, motor trailer system and pressure transducer; Said T type floating body is made up of top board and test board, and this top board is the U type, and top board length is longer than test board, and the angle between vertical panel and the test board is 90 degree; Said T type floating body places tank; Said dilatory gearing comprises three pulleys, and these three pulleys are that isosceles triangle is arranged and be in same direction with test board, are provided with dilatory line between the pulley, and this dilatory line one end connects T type floating body; Said electric traction system comprises motor, reel and clamping device, and the said dilatory line other end connects this motor; Said pressure capsule system touch force sensor is formed with the controller of weighing, and this pressure transducer is arranged in the bottom of the intermediate pulley of three pulleys, and is connected with the controller of weighing.
2. the device of test fabric lining underwater exercise resistance according to claim 1 is characterized in that, is provided with supporter between said intermediate pulley and the said pressure transducer.
3. the device of test fabric lining underwater exercise resistance according to claim 1 is characterized in that, said U template front end is the arc limit, and said arc limit is provided with the suspension part of the dilatory line of suspension.
4. the device of test fabric lining underwater exercise resistance according to claim 1 is characterized in that, the approaching sidewall of said tank and pulley is provided with groove.
5. the device of test fabric lining underwater exercise resistance according to claim 4 is characterized in that, long 5～6 meters of said tank is wide 0.6～1.0 meter, high 0.4～0.6 meter.
6. the device of test fabric lining underwater exercise resistance according to claim 5 is characterized in that, 1/2 long place of tank is provided with mark 1, is provided with mark 2 with the mark 12 meters nearly groove one side places that are separated by.
7. the method for a test fabric lining underwater exercise resistance is characterized in that said method step is following:
(4) utilize bonding agent to be pasted and fixed on T type floating body test board both sides lining to be measured, placed 24 hours, treating that bonding agent parches can carry out testing in the water;
(5) be filled to groove in the tank, T type floating body places tank other end central authorities, and the dilatory line of adjustment makes dilatory line be level, afterwards, and opening pressure sensor-based system switch, record pressure initial value;
(6) motor is opened, and T type floating body drives towards the other end by an end of tank, when running to mark 1 place, picks up counting, and runs to dried up slot marker 2 places timing and stops.To mark 2 traffic coverages, read the pressure capsule system reading at mark 1, deduct the pressure initial value with this reading and be F
VerticallyWhen timing stops, disable motor, pulley stops operating, and accomplishes test; Repeat 5 times and get its arithmetic mean.
8. the method for a kind of test fabric lining underwater exercise resistance according to claim 7 is characterized in that, comprises also that step (4) utilize to be divided to make every effort to make a concerted effort: the vertical drop of intermediate pulley and two head sheaves is made as a, horizontal range is made as b, utilize a
2+ b
2=c
2Formula can be obtained hypotenuse c; According to F/F
Vertically=c/a can calculate F.
9. the method for a kind of test fabric lining underwater exercise resistance according to claim 8 is characterized in that, in test process, and the resistance F of test substrate lining at first
The substrate lining, the resistance F of test resistance lining then
The resistance lining, utilize F
Resistance in the water=F
The resistance lining-F
The substrate lining, said substrate lining and resistance lining are lining material to be measured, are fixed with convexity on the said resistance lining.
10. the method for a kind of test fabric lining underwater exercise resistance according to claim 9 is characterized in that, is fixed with the triangular hill that dislocation is arranged on the said resistance lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110218351.6A CN102323395B (en) | 2011-08-01 | 2011-08-01 | Device for testing fabric water movement resistance and testing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110218351.6A CN102323395B (en) | 2011-08-01 | 2011-08-01 | Device for testing fabric water movement resistance and testing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102323395A true CN102323395A (en) | 2012-01-18 |
| CN102323395B CN102323395B (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110218351.6A Expired - Fee Related CN102323395B (en) | 2011-08-01 | 2011-08-01 | Device for testing fabric water movement resistance and testing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606285A (en) * | 2016-01-25 | 2016-05-25 | 浙江海洋学院 | Floating resistance dynamometer |
| CN109313174A (en) * | 2016-06-22 | 2019-02-05 | 般财团法人化检检验机构 | Frictional force measuring device depending on embracing water and the method for measuring force of friction depending on embracing water |
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2011
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| CN1915126A (en) * | 2005-08-18 | 2007-02-21 | 北京服装学院 | Resistance swimming trunks in use for training |
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| CN1915128A (en) * | 2005-08-18 | 2007-02-21 | 北京服装学院 | Component for increasing resistance to motion in water and bottom materials for the component |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606285A (en) * | 2016-01-25 | 2016-05-25 | 浙江海洋学院 | Floating resistance dynamometer |
| CN105606285B (en) * | 2016-01-25 | 2019-10-29 | 浙江海洋学院 | A kind of floating resistance dynamometer |
| CN109313174A (en) * | 2016-06-22 | 2019-02-05 | 般财团法人化检检验机构 | Frictional force measuring device depending on embracing water and the method for measuring force of friction depending on embracing water |
| CN109313174B (en) * | 2016-06-22 | 2021-12-07 | 一般财团法人化检检验机构 | Friction force measuring device depending on water holding amount and friction force measuring method depending on water holding amount |
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|---|---|
| CN102323395B (en) | 2014-10-22 |
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