CN103837362A - Method for measuring vehicle dynamic load - Google Patents
Method for measuring vehicle dynamic load Download PDFInfo
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- CN103837362A CN103837362A CN201410085770.0A CN201410085770A CN103837362A CN 103837362 A CN103837362 A CN 103837362A CN 201410085770 A CN201410085770 A CN 201410085770A CN 103837362 A CN103837362 A CN 103837362A
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Abstract
The invention relates to a measuring method, in particular to a method for measuring a vehicle dynamic load. The method for measuring the vehicle dynamic load solves the problems that an existing method for measuring the vehicle dynamic load is high in cost and complex in operation. The method for measuring the vehicle dynamic load comprises the specific steps that the two ends of a front axle and the two ends of a rear axle of a vehicle to be measured are respectively provided with a deformation sensor; the vehicle to be measured is lifted through a jack, a lower steel plate and an upper steel plate are arranged on the ground below each tire of the vehicle to be measured from top to bottom, and a weighing sensor is arranged between each upper steel plate and the corresponding lower steel plate; current read numbers of the four deformation sensors and current read numbers of the four weighing sensors are recorded; balance weights made of cement concrete are lifted to the vehicle to be measured through a crane level by level and every time the balance weights of one level are increased, the read numbers of the four deformation sensors and the read numbers of the four weighing sensors are recorded; the dynamic load exerted by the vehicle to be measured on the ground is obtained. The method is applied to measurement of the vehicle dynamic load.
Description
Technical field
The present invention relates to a kind of measuring method, be specifically related to a kind of measuring method of dynamic vehicle load.
Background technology
At present the measuring method of dynamic vehicle load is mainly in pavement structure, to bury sensor underground, as strain transducer, dynamic weighing system etc., be out of shape and the relation of pressure the dynamic load of road pavement structure generation when measuring vehicle is passed through sensor by calibration sensor.But this method cost is higher, need to excavate pavement structure and bury sensor underground, and sensor be embedded in the flatness that has changed to a certain extent pavement structure, and then affect dynamic vehicle load, if carry out dynamic load measurement in multiple sections, need that each short circuit is carried out to sensor and bury underground, not only cost is higher, and complicated operation.
Summary of the invention
The present invention is higher for solving existing dynamic vehicle load measuring method cost, and error is larger, the problem of complicated operation, and then a kind of measuring method of dynamic vehicle load is proposed.
The present invention addresses the above problem the technical scheme of taking to be: the concrete steps of the method for the invention are as follows:
Step 1, at the two ends of vehicle front axle to be measured deformation-sensor of each installation respectively, at the two ends of vehicle rear wheel axle to be measured deformation-sensor of each installation respectively;
Step 5, lift step by step to vehicle to be measured the reading of every increase one-level four deformation-sensors of record and four LOAD CELLS with the mass that crane is made cement concrete;
Step 6, gather according to data in step 4 and step 5, obtain the relation between a strain transducer and corresponding LOAD CELLS reading;
Step 7, carry out dynamic test with test vehicle, obtain by data collecting instrument the axletree distortion that deformation-sensor is measured, the relational expression with tire-ground pressure according to the axletree distortion of setting up in step 6 again, and then draw the dynamic load of test vehicle road pavement structure generation.
The invention has the beneficial effects as follows: the present invention is simple to operation, and it is lower to measure cost, needn't excavate former pavement structure and bury sensor underground, avoid road surface to excavate the error causing, make measurement result more accurate, after vehicle is demarcated, can carry out dynamic load measurement in multiple sections, determine the impact of the operating mode such as condition of road surface, road speed on dynamic load.
Brief description of the drawings
Structural representation when Fig. 1 is measuring vehicle dynamic load of the present invention, Fig. 2 is the rear view of vehicle to be measured.
Embodiment
Embodiment one: in conjunction with Fig. 1 and Fig. 2, present embodiment is described, a kind of concrete steps of measuring method of dynamic vehicle load are as follows described in present embodiment:
Step 1, at the two ends of vehicle front axle to be measured deformation-sensor 4 of each installation respectively, at the two ends of vehicle rear wheel axle to be measured deformation-sensor 4 of each installation respectively;
Step 5, lift step by step to vehicle to be measured the reading of every increase one-level four deformation-sensors 4 of record and four LOAD CELLS 3 with the mass that crane is made cement concrete;
Step 6, gather according to data in step 4 and step 5, obtain the relation between a strain transducer and corresponding LOAD CELLS 3 readings;
Step 7, carry out dynamic test with test vehicle, obtain by data collecting instrument the axletree distortion that deformation-sensor 4 is measured, the relational expression with tire-ground pressure according to the axletree distortion of setting up in step 6 again, and then draw the dynamic load of test vehicle road pavement structure generation.
In present embodiment, below each wheel of vehicle to be measured, lay lower steel plate 1 and can provide an even curface for LOAD CELLS 3, can avoid in addition vehicle to be measured LOAD CELLS in loading procedure to produce excessive pressure to bottom loading end, cause excessive deformation, thereby affect the precision of calibration result.
Embodiment two: in conjunction with Fig. 2, present embodiment is described, a kind of a kind of each deformation-sensor 4 of step of measuring method of dynamic vehicle load is bonded on the front axle and hind axle of vehicle to be measured by bonding agent described in present embodiment.Other composition and annexation are identical with embodiment one.
Embodiment three: present embodiment is described in conjunction with Fig. 2, described in present embodiment, in a kind of measuring method step 1 of dynamic vehicle load, the distance between the contiguous one end of the each deformation-sensor 4 on front axle and front axle is 50cm, and the each deformation-sensor 4 on hind axle is 50cm with the distance that hind axle is close between one end.Other composition and annexation are identical with embodiment one.
Claims (3)
1. a measuring method for dynamic vehicle load, is characterized in that: the concrete steps of the measuring method of described a kind of dynamic vehicle load are as follows:
Step 1, at the two ends of vehicle front axle to be measured deformation-sensors of each installation (4) respectively, at the two ends of vehicle rear wheel axle to be measured deformation-sensors of each installation (4) respectively;
Step 2, in flat road surface, the rear axle of vehicle to be measured is lifted with lifting jack, a lower steel plate (1), a LOAD CELLS (3), a upper steel plate (2) are set on the ground below the each tire of vehicle to be measured from the bottom to top, adjust position and make center superposition, slow decreasing car body, makes two-wheel group switching centre be positioned at the center of a corresponding LOAD CELLS lifting surface area;
Step 3, treat the operation of front axle repeating step two of surveying vehicle;
Step 4, four deformation-sensors (4) and four LOAD CELLS (3) are all connected with data collecting instrument, after four tires of vehicle to be measured are placed on corresponding four upper steel plates (2) stably, record lower four deformation-sensors of vehicle light condition to be measured (4) and four LOAD CELLS (3) reading now;
Step 5, lift step by step to vehicle to be measured the reading of every increase one-level four deformation-sensors of record (4) and four LOAD CELLS (3) with the mass that crane is made cement concrete;
Step 6, gather according to data in step 4 and step 5, obtain the relation between a strain transducer and corresponding LOAD CELLS (3) reading;
Step 7, carry out dynamic test with test vehicle, obtain by data collecting instrument the axletree distortion that deformation-sensor (4) is measured, the relational expression with tire-ground pressure according to the axletree distortion of setting up in step 6 again, and then draw the dynamic load of test vehicle road pavement structure generation.
2. a kind of measuring method of dynamic vehicle load according to claim 1, is characterized in that: a kind of each deformation-sensor of step (4) is bonded on the front axle and hind axle of vehicle to be measured by bonding agent.
3. a kind of measuring method of dynamic vehicle load according to claim 1, it is characterized in that: the distance between the contiguous one end of the each deformation-sensor (4) in step 1 on front axle and front axle is 50cm, the distance between the contiguous one end of the each deformation-sensor (4) on hind axle and hind axle is 50cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410085770.0A CN103837362A (en) | 2014-03-11 | 2014-03-11 | Method for measuring vehicle dynamic load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410085770.0A CN103837362A (en) | 2014-03-11 | 2014-03-11 | Method for measuring vehicle dynamic load |
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| CN103837362A true CN103837362A (en) | 2014-06-04 |
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| CN201410085770.0A Pending CN103837362A (en) | 2014-03-11 | 2014-03-11 | Method for measuring vehicle dynamic load |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122022A (en) * | 2014-07-03 | 2014-10-29 | 山东交通学院 | Automobile axle dynamic load measuring instrument and evaluation method |
| CN106556335A (en) * | 2016-11-15 | 2017-04-05 | 北京万集科技股份有限公司 | A kind of tire ground connection dimension measurement method and system |
| CN113899560A (en) * | 2020-06-22 | 2022-01-07 | 上海汽车集团股份有限公司 | Counterweight method and device for engineering vehicle test |
-
2014
- 2014-03-11 CN CN201410085770.0A patent/CN103837362A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122022A (en) * | 2014-07-03 | 2014-10-29 | 山东交通学院 | Automobile axle dynamic load measuring instrument and evaluation method |
| CN104122022B (en) * | 2014-07-03 | 2016-03-02 | 山东交通学院 | Vehicle axles dynamic load measuring instrument and assessment method |
| CN106556335A (en) * | 2016-11-15 | 2017-04-05 | 北京万集科技股份有限公司 | A kind of tire ground connection dimension measurement method and system |
| CN106556335B (en) * | 2016-11-15 | 2019-06-14 | 北京万集科技股份有限公司 | A kind of tire ground connection dimension measurement method and system |
| CN113899560A (en) * | 2020-06-22 | 2022-01-07 | 上海汽车集团股份有限公司 | Counterweight method and device for engineering vehicle test |
| CN113899560B (en) * | 2020-06-22 | 2024-03-22 | 上海汽车集团股份有限公司 | Counterweight method and device for engineering vehicle test |
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Application publication date: 20140604 |