CN107525644A - The method of inspection during high acceleration shock equipment - Google Patents

The method of inspection during high acceleration shock equipment Download PDF

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Publication number
CN107525644A
CN107525644A CN201710628933.9A CN201710628933A CN107525644A CN 107525644 A CN107525644 A CN 107525644A CN 201710628933 A CN201710628933 A CN 201710628933A CN 107525644 A CN107525644 A CN 107525644A
Authority
CN
China
Prior art keywords
high acceleration
acceleration shock
shock equipment
average value
equipment
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.)
Pending
Application number
CN201710628933.9A
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Chinese (zh)
Inventor
林俊龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Inc
Original Assignee
Goertek Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Priority to CN201710628933.9A priority Critical patent/CN107525644A/en
Publication of CN107525644A publication Critical patent/CN107525644A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00—Vibration-testing of structures; Shock-testing of structures
    • G01M7/08—Shock-testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/62—Manufacturing, calibrating, or repairing devices used in investigations covered by the preceding subgroups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/001—Impulsive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/0202—Control of the test
    • G01N2203/021—Treatment of the signal; Calibration

Abstract

The method of inspection during the invention belongs to impact device inspection technology field, more particularly to a kind of high acceleration shock equipment, including step：After having calibrated high acceleration shock equipment, table top transverse movement is measured than T, and calculate the average value of multiple acceleration value respectivelyThe average value of multiple pulsewidthThe average value of multiple speed valuesAfter high acceleration shock equipment uses a period of time, high acceleration shock equipment is configured according to preceding parameters, table top transverse movement is measured than T again, and calculates the average value a of multiple acceleration value, the average value d of multiple pulsewidth, the average value v of multiple speed values respectively；According to the result of measurement calculatedAnd carried out judging whether high acceleration shock equipment is accurate according to result of calculation.The method of inspection solves the problems, such as not confirming whether high acceleration shock equipment is accurate in the period between calibration twice during the high acceleration shock equipment.

Description

The method of inspection during high acceleration shock equipment
Technical field
Inspection party during the invention belongs to impact device inspection technology field, more particularly to a kind of high acceleration shock equipment Method.
Background technology
At present, impact device is required for calibrating after using a period, does not generally need volume within this period Outer calibration, still, often this period is long, and the frequency used within this period is different, therefore, it is impossible to It is determined that whether impact device is accurate in the period between calibration twice, this directly affects the accuracy of result of the test.
The content of the invention
The method of inspection during it is an object of the invention to provide a kind of high acceleration shock equipment, it is intended to solve in school twice The problem of whether high acceleration shock equipment is accurate can not be confirmed in period between standard.
The present invention is achieved in that the method for inspection during a kind of high acceleration shock equipment, and the high acceleration shock is set The method of inspection comprises the following steps during standby：
Step 1:After calibrated high acceleration shock equipment, to table top transverse movement than T, pulsewidth D, major skock direction Acceleration AZAnd speed V is measured；
1) the high acceleration shock equipment is configured and records the information of setting, cushion pad is arranged on into the height adds The middle part of the shock testing machine of the high acceleration shock equipment is fixed on the work top of fast impact device, by three axial accelerometer On position, and three joints of the three axial accelerometer and three signaling interfaces of the high acceleration shock equipment are electrically connected Connect；According to different test classes, the shock testing machine is risen to and highly starts to impact accordingly, by the three axial acceleration Meter reads the acceleration peak value A in major skock directionZ, vertical with major skock direction two mutually perpendicular directions acceleration peak value AX、AY, and table top transverse movement is calculated than T=(AX、AY)max/AZ× 100%；
2) respectively different test classes repeatedly impact, and read and add from the high acceleration shock equipment Speed, pulsewidth and speed numerical value and recorded, calculate the average value of multiple acceleration valueMultiple pulsewidth is averaged ValueThe average value of multiple speed values
Step 2：After the high acceleration shock equipment uses a period of time, by the high acceleration shock equipment according to step Rapid one parameter is configured；According to identical test class, using the three axial accelerometers of identical parameters, cushion pad again Table top transverse movement is measured than T；Corresponding each test class carries out repeat impact again, and respectively from the high acceleration punching Hit in equipment read acceleration, pulsewidth and speed numerical value and recorded, calculate multiple acceleration value average value a, Average value d, the average value v of multiple speed values of multiple pulsewidth；
Step 3：According to Step 1: the result of the measurement of step 2 is calculated And carried out judging whether high acceleration shock equipment is accurate according to result of calculation Really.
As an improvement , Dang ∣ PA∣≤1、∣PD∣≤1、∣PV∣≤1 and table top transverse movement are than T in allowed limits When meeting simultaneously, then assay is accurate；Dang ∣ PAThe, ∣ P of ∣ ＞ 1DThe, ∣ P of ∣ ＞ 1V∣ ＞ 1 and table top transverse movement exceed than T to be permitted Perhaps when any one in scope occurs, then assay is inaccuracy.
As an improvement when table top transverse movement is than T≤30%, as a result to be accurate, when table top transverse movement is than T ＞ 30%, it is as a result inaccuracy.
As an improvement the three axial accelerometer is to be adhesively fixed with the shock testing machine.
As an improvement test class selects two.
By adopting the above-described technical solution, the method for inspection during the high acceleration shock equipment of the present invention, including it is as follows Step：After high acceleration shock equipment has been calibrated, to table top transverse movement than T, pulsewidth D, major skock direction acceleration AZAnd Speed V is measured, and calculates table top transverse movement than T=(AX、AY)max/AZ× 100%, respectively to different test classes Progress is repeatedly impacted and calculates the average value of multiple acceleration value respectivelyThe average value of multiple pulsewidthRepeatedly The average value of speed valuesAfter high acceleration shock equipment uses a period of time, by high acceleration shock equipment according to step 1 Parameter be configured；According to identical test class, using the three axial accelerometers of identical parameters, cushion pad again to platform Face transverse movement measures than T；Corresponding each test class carries out repeat impact again, and respectively from high acceleration shock equipment Read the numerical value of acceleration, pulsewidth and speed and recorded, calculate the average value a of multiple acceleration value, multiple pulsewidth Average value d, the average value v of multiple speed values；According to the result of measurement calculatedAnd carried out judging high add according to result of calculation Whether fast impact device is accurate.The method of inspection during the high acceleration shock equipment, can be in the period between calibrating twice Inside conveniently high acceleration shock equipment is tested, high add can not be confirmed by solving in the period between calibration twice The problem of whether fast impact device is accurate.
Brief description of the drawings
Fig. 1 be the embodiment of the present invention high acceleration shock equipment during the method for inspection acceleration surge waveform figure；
Wherein, dotted line is calibration pulse line；Solid line is range of tolerable variance line；The D- calibration pulse duration；A- calibration pulses Peak accelerator；The time that T- tests to pulse.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
High acceleration shock equipment is tested within the period between calibrating twice, to confirm high acceleration shock equipment It is whether accurate.
Step 1:After calibrated high acceleration shock equipment, to table top transverse movement than T, pulsewidth D, major skock direction Acceleration AZAnd speed V is measured
1) T is compared in measurement table top transverse movement
After equipment has been calibrated, the relevant information of high acceleration shock equipment is recorded, including device name, unit type, set Standby numbering, equipment Acceleration sensor number and its sensitivity etc., as shown in table 1；
The newest calibration information of detailed recording equipment
1. cushion pad is arranged on work top, three axial accelerometer is fixed on the medium position of shock testing machine, In the present embodiment, three axial accelerometer generally selects 502 quick-drying glue stickings with shock testing machine by being adhesively fixed, when It can also be so bonded from other glue, and by the three of three joints of three axial accelerometer and high acceleration shock equipment Individual signaling interface electrical connection；
2. according to different test classes, shock testing machine is risen to and highly starts to impact accordingly, by three axial acceleration Meter reads the acceleration peak value A in major skock directionZ, vertical with major skock direction two mutually perpendicular directions acceleration peak value AX、AY, and table top transverse movement is calculated than T, when transverse movement ratio≤30% on table top central point, as a result to be accurate, work as transverse direction Motion ratio ＞ 30%, it is as a result inaccuracy, then needs to examine again or overhaul equipment.
T=(AX、AY)max/AZ× 100%
Wherein, (AX、AY)maxFor two mutually perpendicular direction vertical with major skock direction acceleration peak value it is big one Individual, unit is m/s2；
The acceleration peak value A in major skock directionZ, unit is m/s2；
In the present embodiment, the test class generally selected is 500g 1ms, 1500g 0.5ms, and surge waveform is partly just String ripple, as shown in figure 1, the waveform range of tolerable variance of half-sine wave is ± 20%, velocity variations range of tolerable variance is ± 15%, and respectively The transverse movement ratio of different test classes is inserted in following table：
Test class Transverse movement ratio Assay
500g 1ms
1500g 0.5ms
2) high acceleration shock equipment is configured and records the information of setting, as shown in table 2, respectively to different experiments Grade repeatedly impacted, and the numerical value for reading acceleration, pulsewidth and speed from high acceleration shock equipment respectively is gone forward side by side Row record, calculate the average value of multiple acceleration valueThe average value of multiple pulsewidthThe average value of multiple speed valuesAnd insert in table 3；
Select suitable acceleration, pulsewidth condition and record setting up procedure (is configured, to survey to just having calibrated equipment in detail Amount is prepared)
The relevant information, installation site and bonding way to three axial accelerometer are needed, material, the thickness of cushion pad enter Row record, cushion pad is specifically made marks, remain to be continuing with during subsequent survey.
Step 2：After equipment uses a period of time, high acceleration shock equipment is configured according to the parameter of step 1； According to step 1 identical test class, it is horizontal to table top again using the three axial accelerometers of identical parameters, cushion pad In allowed limits whether motion ratio T is measured, and judge table top transverse movement than T；Repeat impact is carried out again, and respectively The numerical value of acceleration, pulsewidth and speed is read from high acceleration shock equipment and is recorded, calculates multiple acceleration value Average value a, the average value d of multiple pulsewidth, the average value v of multiple speed values and calculated；
Acceleration assay confirms
Verification test result values are compared with designated value, comparison result value
δAAcceleration allows difference
Pulsewidth assay confirms
Verification test result values are compared with designated value, comparison result value
(δDPulsewidth allows difference)
Rate test results verification
Verification test result values are compared with designated value, comparison result value
(δVSpeed allows difference)
Step 3：Carried out judging whether high acceleration shock equipment is accurate according to the measurement data of step 2 and result of calculation, Dang ∣ PA∣≤1、∣PD∣≤1、∣PVWhen ∣≤1 all meets, then assay is accurate；Dang ∣ PAThe, ∣ P of ∣ ＞ 1DThe, ∣ P of ∣ ＞ 1V∣ ＞ 1 work as When any one occurs, then assay is inaccuracy, need to again examine or equipment is overhauled.
The method of inspection during the high acceleration shock equipment, can be within the period between calibrating twice conveniently High acceleration shock equipment is tested, solving in the period between calibration twice can not confirm that high acceleration shock equipment is The problem of no accurate.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.

Claims (5)

1. the method for inspection during high acceleration shock equipment, it is characterised in that comprise the following steps：
Step 1:After high acceleration shock equipment has been calibrated, to acceleration of the table top transverse movement than T, pulsewidth D, major skock direction Spend AZAnd speed V is measured；
1) the high acceleration shock equipment is configured and records the information of setting, cushion pad is arranged on the high acceleration punching Hit on the work top of equipment, three axial accelerometer is fixed on the high acceleration shock equipment shock testing machine medium position On, and three joints of the three axial accelerometer are electrically connected with three signaling interfaces of the high acceleration shock equipment； According to different test classes, the shock testing machine is risen to and highly starts to impact accordingly, by the three axial accelerometer Read the acceleration peak value A in major skock directionZ, vertical with major skock direction two mutually perpendicular directions acceleration peak value AX、 AY, and table top transverse movement is calculated than T=(AX、AY)max/AZ× 100%；
2) respectively different test classes repeatedly impact, and read and accelerate from the high acceleration shock equipment Degree, pulsewidth and speed numerical value and recorded, calculate the average value of multiple acceleration valueThe average value of multiple pulsewidthThe average value of multiple speed values
Step 2：After the high acceleration shock equipment uses a period of time, by the high acceleration shock equipment according to step 1 Parameter be configured；According to identical test class, using the three axial accelerometers of identical parameters, cushion pad again to platform Face transverse movement measures than T；Corresponding each test class carries out repeat impact again, and is set respectively from the high acceleration shock The numerical value of standby upper reading acceleration, pulsewidth and speed is simultaneously recorded, and calculates the average value a, repeatedly of multiple acceleration value The average value d of pulsewidth, the average value v of multiple speed values；
Step 3：According to Step 1: the result of the measurement of step 2 is calculated And carried out judging whether high acceleration shock equipment is accurate according to result of calculation Really.
2. the method for inspection during high acceleration shock equipment according to claim 1, it is characterised in that Dang ∣ PA∣≤1、∣PD ∣≤1、∣PV∣≤1 and table top transverse movement meet in allowed limits than T simultaneously when, then assay is accurate；Dang ∣ PA∣ The, ∣ P of ＞ 1DThe, ∣ P of ∣ ＞ 1V∣ ＞ 1 and table top transverse movement than T any one occurs in the scope allowed when, then assay For inaccuracy.
3. the method for inspection during high acceleration shock equipment according to claim 2, it is characterised in that when table top is laterally transported It is dynamic than T≤30%, be as a result inaccuracy when table top transverse movement is than T ＞ 30% as a result to be accurate.
4. the method for inspection during the high acceleration shock equipment according to any one of claims 1 to 3, it is characterised in that institute It is to be adhesively fixed that three axial accelerometer, which is stated, with the shock testing machine.
5. the method for inspection during high acceleration shock equipment according to claim 4, it is characterised in that test class selects Two.
CN201710628933.9A 2017-07-28 2017-07-28 The method of inspection during high acceleration shock equipment Pending CN107525644A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110940479A (en) * 2019-12-05 2020-03-31 中国飞机强度研究所 Armored vehicle seat explosion impact resistance performance test system and method
CN110987469A (en) * 2019-12-05 2020-04-10 中国飞机强度研究所 Armored vehicle seat bench test explosion impact waveform simulation system and method
CN112082726A (en) * 2020-09-18 2020-12-15 陕西千山航空电子有限责任公司 Calibration device and calibration method for protection recorder strong impact test equipment

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Publication number Priority date Publication date Assignee Title
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Publication number Priority date Publication date Assignee Title
JPS5574441A (en) * 1978-11-30 1980-06-05 Japan Synthetic Rubber Co Ltd Measuring device for vibration test
KR101313823B1 (en) * 2012-07-05 2013-10-01 재단법인 중소조선연구원 Experimental method for testing vertical reaction resonance period and movement performance of multi supporters located in the sea with gravity base offshore structure
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110940479A (en) * 2019-12-05 2020-03-31 中国飞机强度研究所 Armored vehicle seat explosion impact resistance performance test system and method
CN110987469A (en) * 2019-12-05 2020-04-10 中国飞机强度研究所 Armored vehicle seat bench test explosion impact waveform simulation system and method
CN112082726A (en) * 2020-09-18 2020-12-15 陕西千山航空电子有限责任公司 Calibration device and calibration method for protection recorder strong impact test equipment

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Application publication date: 20171229

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