CN102323395B - 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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- CN102323395B CN102323395B CN201110218351.6A CN201110218351A CN102323395B CN 102323395 B CN102323395 B CN 102323395B CN 201110218351 A CN201110218351 A CN 201110218351A CN 102323395 B CN102323395 B CN 102323395B
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- fabric
- resistance
- test
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- floating body
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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 fabric water movement resistance.
Background technology
Swimming is an athletic sports that technology content is very high.The development of science and technology, the level that has greatly advanced swimming to race.As the use of shark clothes, making is that the friction of athletes ' body and water further reduces, and swimming rate is promoted.
From training angle, increase measure and the method for the resistance of motion, can make sportsman obtain larger income in the training such as physical efficiency, action, posture.Conventional increase resistance way is that rubber bar is dilatory, ankle resistance rubber band, wear common long sleeves clothing etc.Wherein first two to belong to body part stressed, from training angle, consider, this method may be brought adverse effect to action.If develop whole body, wear the resistant clothes of tool, the increasing resistance effect of this whole body uniform stressed, can be stronger to training.Research and development can quantitative measurement fabric resistance fabric method, to judgement, development drag force for exercise clothes, be very important 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 object of the invention is to make up the blank of prior art and propose a kind of test fabric fabric water movement resistance.
Another object of the present invention is to provide a kind of method of utilizing said apparatus to carry out fabric resistance measurement.
In order to realize object of the present invention, the present invention adopts following concrete technical scheme:
A device for test fabric fabric water movement resistance, described device comprises the T-shaped floating body of tank, bearing fabric fabric, dilatory gearing, motor trailer system and pressure transducer; Described T-shaped floating body consists of top board and test board, and this top board is U-shaped, and top board length is longer than test board, and the angle between vertical panel and test board is 90 degree; Described T-shaped floating body is placed in tank; Described dilatory gearing comprises three pulleys, these three pulleys be that isosceles triangle is arranged and with test board in same direction, between pulley, be provided with dilatory line, this dilatory line one end connecting T-shaped floating body; Described electric traction system comprises motor, reel and clamping device, and the described dilatory line other end connects this motor; Described pressure capsule system touch force sensor and weighing controller form, and this pressure transducer is arranged in the bottom of the intermediate pulley of three pulleys, and is connected with weighing controller.
Between described intermediate pulley and described pressure transducer, be provided with supporter.
Described U-shaped front edge of board is arc-shaped side, and described arc-shaped side is provided with the suspension part that hangs dilatory line.
The sidewall that described tank and pulley approach is provided with groove.
Long 5～6 meters of described 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 of nearly groove one side places that are separated by.
A method for test fabric fabric water movement resistance, described method step is as follows:
(1) fabric to be measured is utilized bonding agent be pasted and fixed on T-shaped floating body test board both sides, place 24 hours, to be bonded dose parches and can carry out testing in water;
(2) in tank, be filled to groove, T-shaped floating body is placed in tank other end central authorities, adjusts dilatory line, makes dilatory line be level, and afterwards, opening pressure sensor-based system switch, records pressure initial value;
(3) motor is opened, and T-shaped floating body drives towards the other end by one end of tank, when running to mark 1 place, starts timing, runs to dried up slot marker 2 places timing and stops.At mark 1, to mark 2 traffic coverages, read pressure capsule system reading, with this reading, deduct pressure initial value and be F
vertically; When timing stops, disable motor, pulley stops operating, and completes test; Repeat to get its arithmetic mean 5 times.
Also comprising that step (4) is utilized minute makes every effort to make a concerted effort: the vertical drop of intermediate pulley and two head sheaves is made as to a, horizontal range is made as to 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 fabric first
substrate fabric, the resistance F of test resistance fabric then
resistance fabric, utilize F
resistance in water=F
resistance fabric-F
substrate fabric, described substrate fabric and resistance fabric are fabric material to be measured, on described resistance fabric, are fixed with projection.
On described resistance fabric, be fixed with the triangular hill that dislocation is arranged.
Beneficial effect of the present invention:
Device preparation of the present invention is simple, with low cost, be very suitable for laboratory and use, and the inventive method is simple and easy to do, and measurement data is accurate, is applicable to the comparison of resistance in water between different fabrics.For later stage scientific research and product fabric select to provide strong Data support.
Exploitativeness of the present invention and outstanding substantive distinguishing features and good effect can be embodied by following instance, but do not limit its scope.
Accompanying drawing explanation
Fig. 1 is T-shaped floating body structural representation, position, upper left side view, and upper right is front view, lower-left is vertical view;
Fig. 2 is the dilatory transmission structures schematic diagram of the present invention;
Fig. 3 is calculation of pressure schematic diagram;
Fig. 4 is sink structure schematic diagram.
Embodiment
Embodiment 1 apparatus of the present invention
1, test special-purpose tank: cell body 1 material can be made with stainless steel, fiberglass, brick concrete etc., long 5～6 meters, wide 0.6～1.0 meter, high 0.4～0.6 meter.At its pull-offs direction, have a reserved dilatory line groove 2, water surface elevation is identical with groove height.
2, the T-shaped floating body of bearing fabric fabric: the designed floating body of the present invention as shown in Figure 1, T-shaped 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 make fore shape with stable operation at front end of the top surface, and dilatory hook is installed at front end cusp place.Utilize little iron nail to regulate the difference of Different Weight fabric weight.When testing, need first adopt method of attaching that wish is tested to fabric and be fixed on vertical panel both sides (upstream face will keep the globality of fabric), to be bonded dose parches and can carry out testing in 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 motor band travelling block, dilatory T-shaped floating body tangential movement forward, thereby due to the fabric adhering on test board and water generation friction generation resistance.This power passes on dilatory line 5, owing on dilatory line 5, device for measuring force cannot being installed, the present invention designs pull-alongs force actuators, the power that makes level produces after changing direction with pulley can gaging pressure (support bar is established in intermediate pulley 6 bottoms, support bar bottom placement force sensor), thus according to mechanics principle, calculate dilatory force.
Intermediate pulley 6 and below two pulleys 7 are isosceles triangle arranges, and the vertical range between intermediate pulley and the pulley at base angle is 140mm, and horizontal range is 440mm.
Pull-alongs force actuators schematic diagram 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 power-off, motor runner is because inertia also will be rotated further, and clamping device can stop the rotation of motor in time.
5, pressure sensor systems: pressure sensor systems is comprised of FS series touch force sensor and CH weighing controller.The present invention adopts FSG-15NIA type sensor, and touch scope is 0.0～1500.0 gram, and range is: 290mV～430mV, sensitivity 0.24mV/ gram force.CH weighing controller technical indicator 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.
Embodiment 2 method of testings
1, first tailor substrate fabric and resistance fabric (27 centimetres of the long 2x that area is identical, wide 12 centimetres), substrate fabric and resistance fabric are fabric material to be measured, the difference of substrate fabric and resistance fabric is, 2 * 61 staggered triangle pocket water projections have been fixed on resistance fabric surface; Adopt method of attaching material to be fixed on test board both sides (globality that upstream face will keep) substrate fabric or resistance fabric, place 24 hours, to be bonded dose parches and can carry out testing in water;
2, an experimenter will draw line and be connected with T-shaped buoyancy aid, place water surface middle part, tank one end, and both hands are comforted.Second experimenter, the tank other end (dilatory line is placed in groove), adjusts electric machine winding wheel, makes to drag line to be level.Afterwards, opening pressure sensing switch, records pressure initial value (because the square litter itself of intermediate pulley and fixed block has gravity, therefore there is pressure initial value), prepares to start motor.Now, when the 3rd experimenter should use tricks common physical culture, stopwatch mixes up, preparation is recorded T-shaped floating motion to the working time in two meters of intervals, pond middle part, has had apart from (2 meters) and time (stopwatch reading), just can obtain the travelling speed of T-shaped buoyancy aid.Before starting motor, second laboratory technician (motor opener), a palm is held motor switch, and another hand will be held motor braking handle, to stop at any time dragging line wheel to rotate.In addition, motor opener, or the person of assigning who reads taker and experiment command of pressure sensor readings.
When 3, experiment command is assigned, hand steered T-shaped floating body person decontrols rapidly buoyancy aid, the experiment command person of assigning opens motor simultaneously, T-shaped floating body is dragged to the other end by one end of tank, when running to tank middle part (mark 1), the 3rd experimenter starts timing, runs to mark 2 places from 1 two meters of of mark, and timing stops.Interval in operation timing, electric motor starting personnel read pressure capsule system reading.When timing stops, electric motor starting personnel can start disable motor switch, and afterwards, braking reel, stops operating.Completed test.Repeat to get its arithmetic mean 5 times.
4, change after the reel of another size, according to same experimental technique, can carry out the resistance measurement under another speed.
Embodiment 3 resistances calculate
1, utilization minute is made every effort to make a concerted effort
Experiment moves forward via pulley under the drawing of motor with T-shaped floating body, by 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 (seeing Fig. 3), there have been two right-angle sides of right-angle triangle, triangle hypotenuse is according to a
2+ b
2=c
2formula can be obtained hypotenuse c.Size in Fig. 2 is brought in formula, obtain c
2=a
2+ b
2=140
2+ 440
2=213200, so c=462.According to formula (1), calculate, 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 fabric resistance
In the present invention there is frictional resistance in the transmission system of power, and dilatory like this power should be comprised of with other resistance fabric resistance and all friction force of system.And our real concern is fabric resistance, so just relate 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: first with substrate fabric, according to method of testing, carry out resistance measurement and the calculating of " substrate fabric ", draw F
substrate fabric, then use resistance fabric (being fixed with resistance projection on substrate fabric) according to method of testing, to carry out resistance measurement and the calculating of " resistance fabric ", draw F
resistance area material, both differences are resistance in the water of resistance fabric.Computing formula is formula (2):
F
resistance in water=F
resistance fabric-F
substrate fabric(2)
Concrete test example
Resistance measurement in embodiment 4 substrate fabric water
According to method of testing of the present invention, common gambroon fabric has been carried out to resistance measurement in water.It is 2 * 27 * 12=0.0648m that fabric and water engaging surface amass
2.In water, travelling speed experiment value is 0.50 meter per second, and (having deducted initial value, is F for 70.97 grams of pressure sensor readings
vertically), according to formula (1), can calculate and make a concerted effort
F
substrate fabric=462/140 * 70.97=229.52 (gram)=2.295 (newton) (1 gram=9.8067 * 10
-3newton).
Resistance measurement in embodiment 5 substrate fabric water
According to method of testing of the present invention, common gambroon fabric has been carried out to resistance measurement in water, it is 2 * 27 * 12=0.0648m that fabric and water engaging surface amass
2.In water, travelling speed experiment value is 0.67 meter per second, and (having deducted initial value, is F for 103.27 grams of pressure sensor readings
vertically), according to formula (1), can calculate F with joint efforts
substrate fabric=462/140 * 103.27=340.79 (gram)=3.340 (newton) (1 gram=9.8067 * 10
-3newton).
Resistance measurement in embodiment 6 substrate fabric water
According to method of testing of the present invention, common gambroon fabric has been carried out to resistance measurement in water, it is 2 * 27 * 12=0.0648m that fabric and water engaging surface amass
2.In water, travelling speed experiment value is 0.77 meter per second, and (having deducted initial value, is F for 163.33 grams of pressure sensor readings
vertically), according to formula (1), can calculate F with joint efforts
substrate fabric=462/140 * 163.33=538.99 (gram)=5.282 (newton) (1 gram=9.8067 * 10
-3newton).
Resistance measurement in embodiment 7 resistance fabric water
According to method of testing of the present invention, to resistance fabric, (at area, be 2 * 27cm * 12cm=0.0648m
2common gambroon fabric on fixed 2 * 61 staggered triangle pocket water projections) carried out resistance measurement in water, in water, travelling speed experiment value is 0.50 meter per second, (having deducted initial value, is F for 131.14 grams of pressure sensor readings
vertically), according to formula (1), can calculate F with joint efforts
resistance fabric=462/140 * 131.14=432.76 (gram)=4.241 (newton) (1 gram=9.8067 * 10
-3newton).
Resistance measurement in embodiment 8 resistance fabric water
According to method of testing of the present invention, to resistance fabric, (at area, be 2 * 27cm * 12cm=0.0648m
2common gambroon fabric on fixed 2 * 61 staggered triangle pocket water projections) carried out resistance measurement in water, in water, travelling speed experiment value is 0.67 meter per second, (having deducted initial value, is F for 202.02 grams of pressure sensor readings
vertically), according to formula (1), can calculate F with joint efforts
resistance fabric=462/140 * 202.02=666.67 (gram)=6.533 (newton) (1 gram=9.8067 * 10
-3newton).
Resistance measurement in embodiment 9 resistance fabric water
According to method of testing of the present invention, to resistance fabric, (at area, be 2 * 27cm * 12cm=0.0648m
2common gambroon fabric on fixed 2 * 61 staggered triangle pocket water projections) carried out resistance measurement in water, in water, travelling speed experiment value is 0.77 meter per second, (having deducted initial value, is F for 248.10 grams of pressure sensor readings
vertically), according to formula (1), can calculate F with joint efforts
resistance fabric=462/140 * 248.10=818.73 (gram)=8.024 (newton) (1 gram=9.8067 * 10
-3newton).
In embodiment 10 resistance fabric water, resistance calculates
According to resistance of the present invention, calculate, in the meter per second situation of same movement speed=0.5, utilize formula (2) to carry out resistance in water to resistance fabric and calculate, F
resistance in water=F
resistance fabric-F
substrate fabric=4.241-2.295=1.946 (newton).
In embodiment 11 resistance fabric water, resistance calculates
According to resistance of the present invention, calculate, in the meter per second situation of same movement speed=0.67, utilize formula (2) to carry out resistance in water to resistance fabric and calculate, F
resistance in water=F
resistance fabric-F
substrate fabric=6.533-3.340=3.193 (newton).
In embodiment 12 resistance fabric water, resistance calculates
According to resistance of the present invention, calculate, in the meter per second situation of same movement speed=0.77, utilize formula (2) to carry out resistance in water to resistance fabric and calculate, F
resistance in water=F
resistance fabric-F
substrate fabric=8.024-5.282=2.742 (newton).
Claims (10)
1. a device for test fabric fabric water movement resistance, is characterized in that, described device comprises the T-shaped floating body of tank, bearing fabric fabric, dilatory gearing, motor trailer system and pressure capsule system; Described T-shaped floating body consists of top board and test board, and this top board is U-shaped, and top board length is longer than test board, and the angle between top board and test board is 90 degree; Described T-shaped floating body is placed in tank; Described dilatory gearing comprises three pulleys, and these three pulleys are isosceles triangle arranges, and the plane at their places and test board are in same direction, are provided with dilatory line, this dilatory line one end connecting T-shaped floating body between pulley; Described electric traction system comprises motor, reel and clamping device, and the described dilatory line other end connects this motor; Described pressure capsule system is comprised of touch force sensor and weighing controller, and this pressure transducer is arranged in the bottom of the intermediate pulley of three pulleys, and is connected with weighing controller.
2. the device of test fabric fabric water movement resistance according to claim 1, is characterized in that, between described intermediate pulley and described pressure transducer, is provided with supporter.
3. the device of test fabric fabric water movement resistance according to claim 1, is characterized in that, described U-shaped front edge of board is arc-shaped side, and described arc-shaped side is provided with the suspension part that hangs dilatory line.
4. the device of test fabric fabric water movement resistance according to claim 1, is characterized in that, the sidewall that described tank and pulley approach is provided with groove.
5. the device of test fabric fabric water movement resistance according to claim 4, is characterized in that, long 5～6 meters of described tank is wide 0.6～1.0 meter, high 0.4～0.6 meter.
6. the device of test fabric fabric water movement 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 of nearly groove one side places that are separated by.
7. a method for test fabric fabric water movement resistance, is characterized in that, adopts the device of the test fabric fabric water movement resistance described in any one in claim 1-6, and described method step is as follows:
(1) fabric to be measured is utilized bonding agent be pasted and fixed on T-shaped floating body test board both sides, place 24 hours, to be bonded dose parches and can carry out testing in water;
(2) in tank, be filled to groove, T-shaped floating body is placed in tank other end central authorities, adjusts dilatory line, makes dilatory line be level, and afterwards, opening pressure sensor-based system switch, records pressure initial value;
(3) motor is opened, and T-shaped floating body drives towards the other end by one end of tank, when running to mark 1 place, starts timing, runs to dried up slot marker 2 places timing and stops.At mark 1, to mark 2 traffic coverages, read pressure capsule system reading, with this reading, deducting pressure initial value, to be F vertical; When timing stops, disable motor, pulley stops operating, and completes test; Repeat to get its arithmetic mean 5 times.
8. the method for a kind of test fabric fabric water movement resistance according to claim 7, it is characterized in that, also comprising that step (4) is utilized minute makes every effort to make a concerted effort: the vertical drop of intermediate pulley and two head sheaves is made as to a, horizontal range is made as to 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 fabric water movement resistance according to claim 8, is characterized in that, in test process, and the resistance F of test substrate fabric first
substrate fabric, the resistance F of test resistance fabric then
resistance fabric, utilize F
resistance in water=F
resistance fabric-F
substrate fabric, described substrate fabric and resistance fabric are fabric material to be measured, on described resistance fabric, are fixed with projection.
10. the method for a kind of test fabric fabric water movement resistance according to claim 9, is characterized in that, is fixed with the triangular hill that dislocation is arranged on described resistance fabric.
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 CN102323395A (en) | 2012-01-18 |
| CN102323395B true 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606285B (en) * | 2016-01-25 | 2019-10-29 | 浙江海洋学院 | A kind of floating resistance dynamometer |
| KR102394817B1 (en) * | 2016-06-22 | 2022-05-04 | 잇빤자이단호진 카켄테스트센터 | Absorption-dependent friction force measurement device and absorption-dependent friction force measurement method |
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| CN1916259A (en) * | 2005-08-18 | 2007-02-21 | 北京服装学院 | Method for sewing resistance component onto bed material, and method for fabricating resistance swimsuit |
| CN1915126A (en) * | 2005-08-18 | 2007-02-21 | 北京服装学院 | Resistance swimming trunks in use for training |
| 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 |
| CN101762717A (en) * | 2010-01-22 | 2010-06-30 | 清华大学 | Underwater boat speed measuring device |
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2011
- 2011-08-01 CN CN201110218351.6A patent/CN102323395B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN1916259A (en) * | 2005-08-18 | 2007-02-21 | 北京服装学院 | Method for sewing resistance component onto bed material, and method for fabricating resistance swimsuit |
| CN1915126A (en) * | 2005-08-18 | 2007-02-21 | 北京服装学院 | Resistance swimming trunks in use for training |
| 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 |
| CN101762717A (en) * | 2010-01-22 | 2010-06-30 | 清华大学 | Underwater boat speed measuring device |
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