GB/T 4857.23-2003 Random vibration test method for packaging and transport packages
Some standard content:
Shanhua National Standard of the People's Republic of China
GB/T4857.23-—2003
Transportation packaging
Random vibration test method
Parkaging''rana[urt packuges—-Random vibration test method2003-07-14 issued
People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
2003-12-01 implementation
GI/T4857.23--2003
American Institute of Material and Testing AIM281 "Random vibration test method for transport packages, international standard 150133r1 package transport package mechanical vibration test method is the same as AS1M4723-1941.I501555:—233. The content is more detailed, the property number and rate marking are modified from ASTM482715 standard ASTV472-199. The differences are as follows:
1. The "4 purpose and practical significance" part is cancelled. The method is partly explained from the principle of random point vibration test. No explanation is given in this standard. 2. The contents of the original standard are retained, and the two appendices of the original ASTM standard are included as the informative appendix A+ of the standard. The original ASTM standard K2 is included as the informative appendix 5 of this standard. At the same time, Appendix A and Appendix B supplement the density test data of this standard, which are proposed by my country National Equipment Standardization Technical Committee and the International Conference on Standardization of China. The main drafter of the bid: China Equipment Research and Testing Center, Huawei Technology Co., Ltd. The initiators of this bid: Li Hua, Bu Bi, Xu Feng, Sha Shan, Cheng Biao Xing, Sheng Dong, Ying Zheng, 1 Scope
Random vibration test method for packaging and transport packages GH/T4857.23—2003
This standard specifies the performance requirements for the test equipment used in the random vibration test of transport packaging and collection packages, and the test procedure is changed to The test report contains the following test items,
This certificate uses the following design to complete the transportation of the packaging, the packaging unit is marked with the same mark, the inner and outer packaging strength, the airtightness of the packaging and the color of the packaging to protect the entire product, which can be used as a test item, and the health test can be used as a group of tests. 2 normative references
The following clauses in the document are recorded as the terms of the international clinical practice, and all documents that allow the door to be marked are used. The subsequent changes will be made to the room (not including the active system). The wrong version or the revised version is not suitable for this standard. However, the latest version of this standard can be used according to the market. If it is not noted, the new version is suitable for this standard. 5Ti/一112.1≤ Installation basis
GB:4122.3 Air installation system visit protection
1 There are environmental test methods for the parts of the installation package GH/427.3 The installation parts should be transported in the world. Low temperature and humidity waste treatment G RT17.1? Packaging before shipment packaging shrinkage parts loss monitoring system reporting original Shenzhen 3 terms and definitions
t%T4122. The following terms and expressions are applicable to this standard 3.1
balanced qualification
center of the entire actual frequency range domestic flash each, a specific rescue technology, for different our store release people moment total display decision requirements or test measures on the stand to the predetermined action requirements 3. 2
Power spectral density (PSD) is a term used to quantify the intensity of data, expressed as the mean square value of velocity per unit frequency, unit [2, 3. 3
Random impact andomtihruliun
In the process of motion, the particle motion has no regularity and is not certain, so it can only be studied by statistical methods in advance. The driving signal processing signntdrivsignulcliping of the natural motion system is limited to a certain amplitude (times of the effective efficiency of 3.5
Statistical autonomy ([OF] ytalistica] degrecs ot frerdum(DO1: Statistical response to the system's disease: its formula! XOP=×
The unit of frequency is standard integer
GB/T 4857.23—2003
The median is recorded in seconds
4 Test equipment
4.1 Dynamic reverse test machine
The dynamic test machine has a certain strength and rigidity. It can generate a single-axis vibration report. It can produce a certain frequency change within the range of fixed point. It has other unique vibration energy: 4.2 Control system
The control system should effectively control the change of the platform, so that the test product can produce a predetermined PS port near the PS port, cut the ring! And the control system book has the real number of new days and the cost is less than X. The frequency of the structure is good and the width of the 2H is analyzed. 4.2.1. Closed-loop control system
Closed-loop control is a system that can automatically generate a random motion signal with a predetermined value of FSD near the test sample. The system should take the digital signal of the stored signal into consideration, generate a digital-to-analog converter for the motion signal, a real-time digital processor, a chain control device, a display, a printer, a hard/soft disk drive.
Design: The typical random motion signal is a limit motion signal. In order to assist in the research of the product, the rate can be increased. The signal processing function is improved.
4.2.2 Open-loop control system
According to the test load, a special vibration recording system is used to make the vibration of the test product produce a predetermined PS[> trap recording. Typical recording systems include: recording/playing or broadcasting equipment, storage and operation of recording data, control system with dynamic information equipment, and a monitoring display. In order to test the vibration machine, the equipment must have sufficient recording and dynamic response range, and if conditions permit, the control system should use the control method to balance each test sample separately to ensure the product is accurate, and the dynamic response of the product is strong and stable. When the test cannot be controlled during the staged blood flow, it is allowed to use the same material as the test product to carry out the micro-test. Method: For the external matching system, the test should be carried out with great care, and the performance must be evaluated and repeated. 1.3 Flow spectrum recording equipment
In order to ensure the accuracy of the macro recording, the recording equipment must be certified with appropriate consultants: in order to avoid reducing the acceleration intensity or generating collected pull, the collected data must be converted into [\S format] 4.4 Supporting funds
Special speed certification, electronic regulator, pre-expansion installation, micro data display, memory, PS1> measurement equipment. The flow test product must be monitored and displayed. In the protection environment of the main test equipment, the test rate is set at 5%. 5 Test procedure 5.1 Preparation of test samples The new test samples shall be in the same room as the actual packaging and the real product (the new test samples shall be the same as the actual packaging and the real product) and shall not affect the test results. In order to make the product defective, these situations need to be explained in the actual inspection requirements. If the product is dangerous or very responsible, the simulated packaging can also be used. After the test, the packaging must be evaluated again. If the product needs to be inspected, the required positions and cavities on the outer packaging shall not be touched. 5.2 Numbering of various parts of the test sample According to 14, 1, the numbering of each part of the test product shall be uniquely shortened. 5.3 Pretreatment of test samples
According to the provisions of (H/T47, select a condition to pre-treat the test sample. If there is no condition for the packaging material to be filtered, it shall be treated at 23°C and cleaned in accordance with the relevant conditions. 4857.23—2↓03
5.4 Test strength selection
The test strength value of the test system shall be given on the day of the test, and the speed value of 1 in the flow channel ring width shall be selected first, or other effective methods in the list shall be selected, or an applicable test strength shall be selected from the publicly published PSL information. 5.5 Equipment calibration
5.5.1 Pre-test calibration
Before the test, the accuracy of all equipment and equipment shall be checked to ensure that the predetermined test strength and tolerance are achieved. The speed sensor shall be placed on the measuring station near the product or on the back of the product. The control system control signal shall be used as described in 4.2. The system shall be used for average rate compensation and the transmission function of the control system shall be tested. 5.5.2. The random vibration test allows the random vibration produced by the > blood energy difference within the test frequency range. When the cumulative analysis bandwidth is 10Hz, the 6-bit reading is allowed to reach 6. At the same time, the average difference of the entire operation is not more than 215% of the expected value. The real-time speed root mean square measurement of the instantaneous time interval of the meter is 1~25. The equalizer is used to analyze the maximum band of the sound and smoke curve, and then change the slope of the line segment to make the curve with a larger slope to make the pressure into a harmonic band. The PST at both ends of the band should be controlled within 23F. When using some dynamic multiples, the level of the distribution cannot be lower than 3. 5. Test steps 5.6.1 Record the humidity of the test site.
5.6.2 There is no need to determine the number of test samples to be stolen. 15.6.2.1 The inspection of the received samples should be carried out as close as possible to the center of the surface to ensure the expected movement (half or half of the water can be transmitted to the outer packaging.
5.6.2.2 The stacking method of the loading and unloading equipment is not fixed. The packaging parts must be protected by a large guard to prevent them from falling from the platform during vibration. The position must be well protected so that there can be no unexpected movement on the loading and unloading equipment.
5.6.2.3 Only when other loaded parts need to be transported regularly under real vehicle conditions (such as trucks), the sample age will be small. 5.6.3, start the test, it must be ensured that its typical degree cannot exceed the selected 1SL1 curve placement 5.6.4 then the following two force methods are carried out:
5. (4, method eight: test risk space to the lowest ten fixed 1) 6 yuan before the start: then divide: special product increment strength write until the preset value is reached, so that the ring; the system lacks in the low test age range under the determined average case, 5.6.4.2 method 5, should be accurate to avoid increasing the system's required signal, the test control independent degree avoid tide increase correction to the preset value. The society has a new type of random test, the society will produce a state for the protection of light, :, Jiang test attention may produce suitable problems in the mountain or point. Jade machine! Agent, the protection of the biological tourism department must have the full support of the full cost. 2. The supervisor will always be in the position of overflow and take precautions in advance. If there is a risk, the test plan will be stopped immediately. 5.6.5
5.6.5, 1. Continue the operation until the scheduled brain machine alarm is completed, or the test is stopped when the package parts are damaged. This period of time is not included in the control period. 5.6.5.2. The test plan can be verified by 5.6.5.3. The actual negative information can be verified by the actual carbon loss rate. The test plan can be adjusted according to the actual carbon loss rate and 1SD. Example: The laboratory risk is strict. The actual frequency level can be adjusted, 3
CB/T 4857.23—2003
ETest report
The test report should indicate the following:
Detailed description of the name, specifications, model and weight of the contents (in grams); b. The total mass, support height, etc. of the test sample;
Detailed description of the name, specifications, model and weight of the contents (in grams); c. The total mass, support height, etc. of the test sample;
Detailed description of the name, specifications, model and weight of the contents (in grams); b. The total mass, support height, etc. of the test sample;
Detailed description of the name, specifications, model and weight of the contents (in grams); c. The total mass, support height, etc. of the test sample;
Detailed description of the name, specifications, model and weight of the contents (in grams); b. The total mass, support height, etc. of the test sample;
Detailed description of the name, specifications, model and weight of the contents (in grams); c. The total mass, support height, etc. of the test sample;
4 Added load: If a potential is added, the mass of the load (in grams per liter) and the time the test sample can withstand the load;
The method is still under investigation. The manufacturer uses the standard test method. The damage surface and fixing method are determined by the time: h
Random PS mountain continues to select according to the light, including the description of the test method and the relevant technical analysis: the details of the test method, including the test spectrum, D, the test method and the test questions: i
The test method is verified, including the TS report of the actual shooting point or the use of the line. Any description of the benefits k
will be used to describe all the phenomena that may help to correctly understand the experimental results, as well as to improve the appearance of the product, the outer packaging and the product.
The results of the test should be described in detail to help the market correctly interpret the test results. t
Any test results before the test should be consistent with the market standards and reference standards; the test report should include the name, title and signature of the test personnel and the test unit. r
(Information Appendix;
American random excavation power density curve example A, Figure 1, several different vibration intensity changes and standard increases are given separately. GD/T 4857.23——2C03
A1.1 The vibration intensity in Figure 1 is only the average value of the vibration intensity under different loads, different vibration reduction systems, different road surface conditions, different weather conditions and driving speeds. It does not represent a certain operating environment and its accurate management should be done by the user. 1.2 The vibration caused by the start of the vehicle at high speed is not as shown in Figure A. Figure 4.1 is based on the line intensity example in Table 4,14
(.) Note that the vibration PSD curve of the highway transport model A1 is not a standard model of the transport model A.1 is ... 0F
strength gx）
42 Figure A.2 The quality of the vehicle is not reduced by the standard. I have different types of vehicles with different loads. Frequency / Hx
One kilometer limit
-design level transport performance
frequency one/y
strength (g/Hz)
3. 260 31
A.2.A.2 This is from the international highway evaluation of the United States, km note that the line is based on the performance of the vehicle table A, 2 GF/T4857.23-—2003
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Figure A.2 Random standard PSI curves of different freight trucks Table A. 2 Figure A.2 The data sheet of
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2.3 Figure 4.3 to the example of the responsibility of the truck load 19:11kg (13000 h) loan, with 83.5km/h continuous speed Hong Kong interest interstate commercial highway XY7-continued vibration intensity curve. 6
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Figure A,3 Truck xYZ three-way vibration SID curve GR/T 1857.23—2003
A.4 Figure A.4 lists the different dynamic separation logic curves of different types of head road transportation. The front is in different routes and different speeds. The dynamic strength level of the case is 10.00
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Appendix B
(Informative Appendix:
China Tianlu Random Ring Line Drive Engine Vibration Power Density Curve Implementation BT Figure B.1 lists the implementation of the plate chuck under different load conditions. The vertical axis vibration operation curve is about 10000 km/h on the road. This is caused by the load frame when the outer ring (first class) is accompanied by the outer ring. B.2 The PSD number of Figure R.1 is in B.1.
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China Dajin Outer Ring Line Random Vibration P5D Curve Figure B
Note curve A.Quantity【0kg
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Based on the home consumption case
GB/T4857.23—2003
Business line 3
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