CN103018054B - A kind of automotive axle axle housing Static stiffness and static strength method of testing - Google Patents
A kind of automotive axle axle housing Static stiffness and static strength method of testing Download PDFInfo
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- CN103018054B CN103018054B CN201210524302.XA CN201210524302A CN103018054B CN 103018054 B CN103018054 B CN 103018054B CN 201210524302 A CN201210524302 A CN 201210524302A CN 103018054 B CN103018054 B CN 103018054B
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- 230000003068 static effect Effects 0.000 title claims abstract description 48
- 238000010998 test method Methods 0.000 title claims description 4
- 238000006073 displacement reaction Methods 0.000 claims abstract description 84
- 238000012360 testing method Methods 0.000 claims abstract description 37
- 238000005259 measurement Methods 0.000 claims abstract description 36
- 239000011888 foil Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Abstract
A kind of automotive axle axle housing Static stiffness and static strength test macro, comprise displacement transducer, the output of displacement transducer is connected with computing machine by hub, displacement transducer mounting bracket is utilized displacement transducer to be arranged in the corresponding measuring position of axle housing, strain gauge adhesion is in the large position of axle housing upper stress, foil gauge is connected with the input of strainmeter, the output of strainmeter is connected with computing machine, computing machine is equipped with testing software, during test, under the control of Survey Software, the displacement of the corresponding measuring point of displacement sensor axle housing, then computing machine is sent to by displacement transducer data line and hub, avoid the personal error that artificial reading brings, simultaneously, the variable quantity of strainmeter collection strain bridge voltage obtains strain value, then strain data is sent to computing machine by strainmeter cable, displacement measurement and strain measurement complete in set of system, reduce the fussy degree of test, more convenient to operate.
Description
Technical field
The present invention relates to auto parts and components technical field of measurement and test, be specifically related to a kind of automotive axle axle housing Static stiffness and static strength test macro.
Background technology
Vehicle bridge plays the vital role such as special delivery power, bearing load in the automobile course of work.Axle housing is as the critical part of vehicle bridge, and its Static stiffness and static strength reflect axle housing performance in the course of the work.Therefore, in the development and Design process of vehicle bridge, be necessary to carry out Static stiffness and static strength test to axle housing.
It is measured that the Static stiffness of axle housing and static strength measurement relate to two classes: displacement and strain.Displacement measurement is when loading axle housing, measures the displacement of some points on axle housing, and draws the line of deflection of axle housing.Measuring method conventional at present manually reads and record the numerical value of each dial gauge, then draws the line of deflection of axle housing under respective loads.Strain measurement is when loading axle housing, measures the stress intensity of the point concerned on axle housing.Measuring method conventional at present pastes foil gauge on axle housing, by the stress of strain-ga(u)ge measurement axle housing under respective loads.Displacement measurement and strain measurement are completely independently carried out.
In actual tests process, often need to arrange tens of dial gauges and multiple strain measuring point, and the displacement recorded under many wheel loads and stress value.In existing measuring method, by manually reading the numerical value of dial gauge and drawing axle housing line of deflection, workload is large, easily brings personal error; Meanwhile, displacement measurement system and stress measurement system are completely independent, and experimenter needs to measure and process two class data respectively, and labour intensity is large, inconvenient operation.Therefore, the difficulty that axle housing Static stiffness and static strength are measured is: the automatic measurement and the data processing that 1, how to realize displacement and dependent variable; 2, measuring in set of system of displacement and dependent variable how is realized.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of this invention is to provide a kind of automotive axle axle housing Static stiffness and static strength test macro, can realize automatically measuring in set of system and displacement in the Static stiffness of process automotive axle axle housing and static strength test process and strain data, automaticity is high, easy to operate.
In order to achieve the above object, the technical scheme that the present invention takes is:
A kind of automotive axle axle housing Static stiffness and static strength test macro, comprise displacement transducer 6, digital output mouth is with by displacement transducer 6, the output of displacement transducer 6 is connected with computing machine 14 with hub 9 by displacement transducer data line 8, displacement transducer mounting bracket 5 is utilized displacement transducer 6 to be arranged in the corresponding measuring position of axle housing 1, foil gauge 7 is pasted onto the large position of axle housing 1 upper stress, foil gauge 7 is connected with the input of strainmeter 12 by foil gauge cable 11, the output of strainmeter 12 is connected with computing machine 14 by strainmeter cable 13 again, computing machine 14 is equipped with testing software.
Described testing software comprises axle housing optimum configurations, strain measurement setting, displacement measurement setting, reset, data acquisition, data processing and generating report forms 7 modules, testing results software, in axle housing parameter setting module input vehicle bridge wheelspan, spring block distance, fully loaded axle load relevant information; The work completing the setting of strainmeter acquisition parameter, foil gauge optimum configurations, the setting of foil gauge direction and strainmeter and demarcate is set in module in strain measurement; Arrange in module at displacement measurement and displacement transducer information and displacement measuring points coordinate are set; Carry out zero in reset module to displacement and strain measurement to arrange, obtain zero reference point; In data acquisition module input load value, gather strain and displacement data, display and store test data, draw " load-strain " curve and " load-displacement " curve; At data processing module, strain data is converted to stress data, draws " load-stress " curve, draw the line of deflection of axle housing, test result and the given index of industry laws are compared; Print at generating report forms Module Generation experimental report, terminate automotive axle axle housing Static stiffness and test of static strength.
During test, under the control of Survey Software, the displacement of the corresponding measuring point of axle housing 1 measured by displacement transducer 6, then sends computing machine 14 to by displacement transducer data line 8 and hub 9, avoids the personal error that artificial reading brings.Simultaneously, the variable quantity that strainmeter 12 gathers strain bridge voltage obtains strain value, then strain data is sent to computing machine 14 by strainmeter cable 13, displacement measurement and strain measurement complete in set of system, reduce the fussy degree of test, more convenient to operate, in addition, testing software can record and process the test figure under many wheel loads, is convenient to compare the Static stiffness of same tested object under different round load condition and static strength.
Above-mentioned testing software can be used for carrying out axle housing Static stiffness and test of static strength according to industry standard QC/T533 " automobile drive axle Bench test methods ".Testing software is responsible for sending various operational order, and receives test data, automatically completes data processing, draws axle housing line of deflection, obtains automotive axle axle housing Static stiffness and static strength test result, prints experimental report.
Of the present inventionly to have the following advantages: the automation collection 1, achieving displacement and strain data, reduce test labour intensity, measuring accuracy is reliable; 2, displacement measurement and strain measurement complete in set of system, easy to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 be automotive axle axle housing Static stiffness and static strength test time point layout schematic diagram.
The process flow diagram of Tu3Shi testing software of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As depicted in figs. 1 and 2, a kind of automotive axle axle housing Static stiffness and static strength test macro, comprise displacement transducer 6, displacement transducer mounting bracket 5, displacement transducer data line 8, hub 9, hub data line 10, foil gauge 7, foil gauge cable 11, strainmeter 12, strainmeter cable 13, computing machine 14 and testing software, digital output mouth is with by displacement transducer 6, the output of displacement transducer 6 is connected with computing machine 14 with hub 9 by displacement transducer data line 8, displacement transducer mounting bracket 5 is utilized displacement transducer 6 to be arranged in the corresponding measuring position of axle housing 1, foil gauge 7 is pasted onto the large position of axle housing 1 upper stress, foil gauge 7 is connected with the input of strainmeter 12 by foil gauge cable 11, the output of strainmeter 12 is connected with computing machine 14 by strainmeter cable 13 again, computing machine 14 is equipped with testing software.
As shown in Figure 3, described testing software comprises axle housing optimum configurations, strain measurement setting, displacement measurement setting, reset, data acquisition, data processing and generating report forms 7 modules, testing results software, in axle housing parameter setting module input vehicle bridge wheelspan, spring block distance, fully loaded axle load relevant information; The work completing the setting of strainmeter acquisition parameter, foil gauge optimum configurations, the setting of foil gauge direction and strainmeter and demarcate is set in module in strain measurement; Arrange in module at displacement measurement and displacement transducer information and displacement measuring points coordinate are set; Carry out zero in reset module to displacement and strain measurement to arrange, obtain zero reference point; In data acquisition module input load value, gather strain and displacement data, display and store test data, draw " load-strain " curve and " load-displacement " curve; At data processing module, strain data is converted to stress data, draws " load-stress " curve, draw the line of deflection of axle housing, test result and the given index of industry laws are compared; Print at generating report forms Module Generation experimental report, terminate automotive axle axle housing Static stiffness and test of static strength.
The step that use native system carries out automotive axle axle housing Static stiffness and static strength test is as follows:
The first step, as shown in Figure 2, be arranged on by axle housing 1 in first supporting 3 and the second supporting 4, installation site is divided into vehicle bridge wheelspan place, and the point of application is left and right spring block 2 center A and B on axle housing 1;
Second step, as shown in Figure 2, be clamped in by displacement transducer 6 on displacement transducer mounting bracket 5, be then arranged in the displacement measuring points place of axle housing 1, the quantity of displacement measuring points and position can be determined according to actual conditions;
3rd step, as shown in Figure 2, foil gauge 7 is secured at the strain measuring point place on the surface of axle housing 1, and quantity and the position of strain measuring point can be determined according to actual conditions;
4th step, as shown in Figure 3, Fig. 3 is the connection layout of displacement transducer 6 and foil gauge 7 and computing machine 14, and all displacement transducers 6 are connected with hub 9 by displacement transducer data line 8, and hub 9 is connected with computing machine 14 by hub data line 10; Foil gauge 7 is connected with strainmeter 12 by foil gauge cable 11, and strainmeter 12 is connected with computing machine 14 by strainmeter cable 13;
5th step, computing machine 14 is installed automotive axle axle housing Static stiffness and static strength testing software, the process flow diagram of testing software as shown in Figure 3, testing software comprises axle housing optimum configurations, strain measurement setting, displacement measurement setting, reset, data acquisition, data processing and generating report forms 7 modules, testing results software, in axle housing parameter setting module input vehicle bridge wheelspan, spring block distance, fully loaded axle load relevant information; The work completing the setting of strainmeter acquisition parameter, foil gauge optimum configurations, the setting of foil gauge direction and strainmeter and demarcate is set in module in strain measurement; Arrange in module at displacement measurement and displacement transducer information and displacement measuring points coordinate are set; Carry out zero in reset module to displacement and strain measurement to arrange, obtain zero reference point; In data acquisition module input load value, gather strain and displacement data, display and store test data, draw " load-strain " curve and " load-displacement " curve; At data processing module, strain data is converted to stress data, draws " load-stress " curve, draw the line of deflection of axle housing, test result and the given index of industry laws are compared; Print at generating report forms Module Generation experimental report, terminate automotive axle axle housing Static stiffness and test of static strength.
Claims (1)
1. automotive axle axle housing Static stiffness and a static strength method of testing, it is characterized in that, step is as follows:
The first step, be arranged on by axle housing (1) in the first supporting (3) and the second supporting (4), installation site is vehicle bridge wheelspan place, and the point of application is left and right spring block (2) center A and B on axle housing (1);
Second step, is clamped in displacement transducer (6) on displacement transducer mounting bracket (5), is then arranged in the displacement measuring points place of axle housing (1), and the quantity of displacement measuring points and position can be determined according to actual conditions;
3rd step, foil gauge (7) is secured at the strain measuring point place on the surface of axle housing (1), and quantity and the position of strain measuring point can be determined according to actual conditions;
4th step, all displacement transducers (6) are connected with hub (9) by displacement transducer data line (8), and hub (9) is connected with computing machine (14) by hub data line (10); Foil gauge (7) is connected with strainmeter (12) by foil gauge cable (11), and strainmeter (12) is connected with computing machine (14) by strainmeter cable (13);
5th step, computing machine (14) is upper installs automotive axle axle housing Static stiffness and static strength testing software, testing software comprises axle housing optimum configurations, strain measurement setting, displacement measurement setting, reset, data acquisition, data processing and generating report forms 7 modules, testing results software, in axle housing parameter setting module input vehicle bridge wheelspan, spring block distance, fully loaded axle load relevant information; The work completing the setting of strainmeter acquisition parameter, foil gauge optimum configurations, the setting of foil gauge direction and strainmeter and demarcate is set in module in strain measurement; Arrange in module at displacement measurement and displacement transducer information and displacement measuring points coordinate are set; Carry out zero in reset module to displacement and strain measurement to arrange, obtain zero reference point; In data acquisition module input load value, gather strain and displacement data, display and store test data, draw " load-strain " curve and " load-displacement " curve; At data processing module, strain data is converted to stress data, draws " load-stress " curve, draw the line of deflection of axle housing, test result and the given index of industry laws are compared; Print at generating report forms Module Generation experimental report, terminate automotive axle axle housing Static stiffness and test of static strength,
The test macro realizing said method comprises displacement transducer (6), displacement transducer (6) band digital output mouth, the output of displacement transducer (6) is connected with computing machine (14) with hub (9) by displacement transducer data line (8), displacement transducer mounting bracket (5) is utilized displacement transducer (6) to be arranged in the corresponding measuring position of axle housing (1), foil gauge (7) is pasted onto the large position of axle housing (1) upper stress, foil gauge (7) is connected by the input of foil gauge cable (11) with strainmeter (12), the output of strainmeter (12) is connected with computing machine (14) by strainmeter cable (13) again, computing machine (14) is equipped with testing software.
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| CN103940604B (en) * | 2014-05-07 | 2016-03-16 | 哈尔滨工业大学 | Computer program controlled formula aircraft static loading test device and method |
| CN104634588B (en) * | 2015-03-11 | 2017-03-08 | 重庆理工大学 | A kind of drive axle support stiffness measuring method |
| CN105043753B (en) * | 2015-09-07 | 2018-02-06 | 河北工程大学 | Vehicle body installs fixing point Static stiffness testing stand and its test method |
| CN109100100B (en) * | 2017-01-25 | 2020-02-07 | 松下知识产权经营株式会社 | Rigidity measuring device and rigidity measuring method |
| CN106840273A (en) * | 2017-04-18 | 2017-06-13 | 中国矿业大学(北京) | City underground engineering allpurpose model experimental system |
| CN108692957A (en) * | 2018-04-19 | 2018-10-23 | 威马智慧出行科技（上海）有限公司 | The test method and device of vehicle jointing durability degree |
| CN108645580A (en) * | 2018-04-25 | 2018-10-12 | 江铃控股有限公司 | Automobile body-in-white part Static stiffness test method |
| CN111929070A (en) * | 2020-07-28 | 2020-11-13 | 一汽解放汽车有限公司 | Axle fault diagnosis method, device, equipment and storage medium |
| CN112378641A (en) * | 2020-11-26 | 2021-02-19 | 山东豪驰智能汽车有限公司 | Novel integral axle housing performance testing method |
| CN114506472B (en) * | 2022-02-23 | 2023-09-12 | 中航贵州飞机有限责任公司 | Evaluation method for stress at structural stress key point |
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| DE10158565B4 (en) * | 2001-11-29 | 2004-09-30 | Wilhelm Karmann Gmbh | Method for evaluating measurement data from a road simulator, computer program, computer program product, use of the method, device for evaluating measurement data from a road simulator and road simulator with the same |
| DE102004046912A1 (en) * | 2004-09-28 | 2006-03-30 | Daimlerchrysler Ag | Method for simulating the lifetime of a means of transport |
| CN101281085B (en) * | 2007-12-27 | 2011-05-11 | 奇瑞汽车股份有限公司 | Car white vehicle body structure static angular rigidity testing system and testing method thereof |
| CN101368882B (en) * | 2008-07-22 | 2010-08-11 | 上汽通用五菱汽车股份有限公司 | Car body dynamic intensity analysis method |
| DE102010012178B4 (en) * | 2010-03-19 | 2012-01-19 | Bayerische Motoren Werke Aktiengesellschaft | Device and method for determining a body deformation of a vehicle |
| CN102455250B (en) * | 2010-10-22 | 2015-06-17 | 上海汽车集团股份有限公司 | Method for testing body-in-white bending rigidity of automobile |
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