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GB/T 18505-2013: Dynamic balance test method for motor vehicle tyres
Status: Valid GB/T 18505: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 18505-2013 | English | 209 |
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3 days [Need to translate]
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Dynamic balance test method for motor vehicle tyres
| Valid |
GB/T 18505-2013
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| GB/T 18505-2001 | English | 239 |
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2 days [Need to translate]
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Car tire balancing test method
| Obsolete |
GB/T 18505-2001
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PDF similar to GB/T 18505-2013
Basic data | Standard ID | GB/T 18505-2013 (GB/T18505-2013) | | Description (Translated English) | Dynamic balance test method for motor vehicle tyres | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G41 | | Classification of International Standard | 83.160.10 | | Word Count Estimation | 9,959 | | Older Standard (superseded by this standard) | GB/T 18505-2001 | | Quoted Standard | GB/T 2977; GB/T 2978; GB/T 3487; GB/T 6326; GB/T 6444; GB 9743; GB 9744; GB/T 25158 | | Regulation (derived from) | National Standards Bulletin 2013 No. 27 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the automobile tire balancing test terminology and definitions, test equipment, test conditions, test procedures, test reports. This standard applies to passenger car tires, truck tires (including mini-truck tires, light truck tire | GB/T 18505-2013: Dynamic balance test method for motor vehicle tyres---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Dynamic balance test method for motor vehicle tyres
ICS 83.160.10
G41
National Standards of People's Republic of China
Replacing GB/T 18505-2001
Tire balancing test methods
Issued on. 2013-12-31
2014-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 18505-2001 "car tire balancing test methods", compared with the GB/T 18505-2001, in addition to editing
Modifications outside the main technical changes are as follows.
--- Revised the scope of the standard (see Chapter 1);
--- Added "unbalanced" "static unbalance quality" "dynamic unbalance" and "unilateral couple unbalance mass" is defined (see 3.1, 3.3,
3.4 and 3.6);
--- Revised formula for calculating the distance between the front of the school (see 38, 2001 version 3.5.);
--- Revised formula for calculating the correction radius (see 39, 2001 version 3.4.);
--- Revised testing machine speed range (see 42, 2001 version 4.2.);
--- Revised scale indication accuracy testing machine (see 43, 2001 version 4.3.);
--- Increase the accuracy of the test equipment and calibration requirements (see 4.5);
--- Without increasing the width of the test by measuring rim, couple unbalance and couple unbalance mass unilateral numerical correction method
(See 5.3.1);
--- Remove the test rim residual static unbalance and couple residual unbalance requirements (see 533, 2001 edition 5.4.);
--- Revised test conditions of pressure measurement requirements (see 5.4, 5.6, 2001 edition).
The standard proposed by China Petroleum and Chemical Industry Association.
The standard tire rim by the National Standardization Technical Committee (SAC/TC19) centralized.
This standard was drafted. Triangle Tire Co., Ltd., Hangzhou Zhongce Rubber Co., Ltd., Shandong Linglong Rubber Co., tournament round Shares
Parts Limited, Chaoyang Long March Tyre Co., Ltd., Beijing Capital Tire Co., Ltd., Aeolus Tyre Co., Double Star Group has
Limited liability company, the Beijing Rubber Industry Research and Design Institute, Ltd. soft control.
The main drafters. Zhang Chunge, Zhang Tao, Gao Xian Jie, Miss Polly Chan, Xie Libo, in Hayley, Wang Weidong, should the World Island, Chen Hongwen,
Wang Ke first, per week ring, Meng infant.
This standard replaces the standards previously issued as follows.
--- GB/T 18505-2001.
Tire balancing test methods
1 Scope
This standard specifies the test car tire balancing terms and definitions, test equipment, test conditions, test procedures, test records.
This standard applies to passenger car tires, truck tires (including mini-truck tires, light truck tires).
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 2977 truck tire specifications, size, pressure and load
GB/T 2978 car tire specifications, size, pressure and load
GB/T 3487 standard series car rims
GB/T 6326 tires terms and definitions
GB/T 6444 Mechanical vibration - Balancing Vocabulary
GB 9743 passenger car tires
GB 9744 Truck tires
GB/T 25158 tire balancing test machine
3 Terms and Definitions
GB/T 6326 and GB/T 6444 defined by the following terms and definitions apply to this document.
3.1
Unbalance unbalance
Static unbalance or dynamic unbalance or both imbalance.
3.2
Static unbalance staticunbalancevalue
Tire mass times eccentricity of the center of mass product, the unit represented by g · cm.
Note. when the tire is rotated at a constant speed, the static unbalance is perpendicular to the axis of rotation of the centrifugal force, can be used formula (1).
Fs = m × e ×
πn () 30
× 10-5 (1)
Where.
FS --- unbalanced centrifugal force, in Newtons (the N);
m --- tire mass in grams (g);
e --- centroid offset in centimeters (cm);
π --- pi;
n --- speed, in revolutions per minute (r/min).
Note. Due to the tire will deform under the centrifugal force, so that the center of gravity may be offset as a function of speed.
3.3
Static unbalance mass staticunbalancemass
Static unbalance correction amount is divided by the radius of the unit indicated by g.
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