GB/T 4971-2009 English PDFUS$229.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 4971-2009: Terms and definitions for Automotive ride comfort Status: Valid GB/T 4971: Historical versions
Basic dataStandard ID: GB/T 4971-2009 (GB/T4971-2009)Description (Translated English): Terms and definitions for Automotive ride comfort Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: T23 Classification of International Standard: 43.040.50 Word Count Estimation: 10,134 Date of Issue: 2009-10-30 Date of Implementation: 2010-07-01 Older Standard (superseded by this standard): GB/T 4971-1985 Regulation (derived from): National Standard Approval Announcement 2009 No.12 (Total No.152) Issuing agency(ies): General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 terms and phrases commonly used in vehicle ride comfort aspects. This standard applies to cars Ping Gu design, trials and research. GB/T 4971-2009: Terms and definitions for Automotive ride comfort---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.Terms and definitions for Automotive ride comfort ICS 43.040.50 T23 National Standards of People's Republic of China Replace GB/T 4971-1985 Automotive ride comfort terms and definitions Released on.2009-10-30 2010-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Issued by the National Standardization Administration of China Automotive ride comfort terms and definitions 1 ScopeThis standard specifies common terms and terms in terms of car ride comfort. This standard applies to car ride comfort design, testing and research.2 Terms and definitions2.1 Basic terms and definitions 2.1.1 It provides passengers with a comfortable and pleasant riding environment and convenient operating conditions. Comfort includes. a) Ride comfort; b) Noise in the car; c) Air conditioning performance (temperature, humidity, air flow, etc.); d) Riding environment (activity space, internal equipment, layout, decoration, height of pedals, width of doors and passages, etc.); e) Driving performance (portability of driving operation, legibility of instruments and signal equipment, etc.). 2.1.2 Avoid the vibration and impact generated by the car during the driving process that make people feel uncomfortable, fatigue, or even damage health, or damage the goods performance. Note. Ride comfort is one of the main contents of comfort. 2.2 Types of vehicle vibration 2.2.1 A straight line vibration along the car's X axis (see Figure 1). 2.2.2 A straight line vibration in the direction of the car's Y axis (see Figure 1). GB/T 4971-2009 2.2.3 Straight line vibration in the direction of the car's Z axis (see Figure 1). 2.2.4 Angular vibration around the car's X axis (see Figure 1). 2.2.5 Angular vibration around the car's Y axis (see Figure 1). 2.2.6 Angular vibration around the car's Z axis (see Figure 1). 2.3 Types of human body vibration 2.3.1 Vibrate in a straight line along the front and back direction of the human body (see X direction in Figure 2). 2.3.2 Vibrate in a straight line along the left and right directions of the human body (see Figure 2 Y direction). 2.3.3 Vibrate in a straight line along the direction of the human spine (see Figure 2Z). 2.3.4 Angular vibration around the X axis of the human body (see Figure 2). 2.3.5 Angular vibration around the Y axis of the human body (see Figure 2). 2.3.6 Angular vibration around the Z axis of the human body (see Figure 2). 2.3.7 Vibrations of individual parts of the human body are acted on by the handles, pedals, steering wheels, occupant armrests and headrests of the operating mechanism. 2.3.8 Vibration transmitted to the entire human body through the floor and seat. 2.4 Types of vibration process 2.4.1 Uninterrupted vibration for a certain period of time. 2.4.2 A series of vibration events, each vibration lasts a short time, and these vibrations are separated by other vibrations with small amplitude. GB/T 4971-2009 2.5.4 The contact surface of the human body and the vehicle body, the origin of the basic coordinate system of the human body and the test measurement point are all located on the supporting surface. 2.6 Test method 2.6.1 The ride comfort test of a car driving over bumps or pits. 2.6.2 Ride comfort test when a car is driving on random uneven roads. 2.7 Evaluation method 2.7.1 The evaluation depends on the subjective feeling of the evaluator. 2.7.2 Evaluate based on the measured vibration displacement, velocity, acceleration and other physical quantities. 2.7.3 A method of evaluating the root mean square value of the weighted acceleration. 2.7.4 A method of evaluation using acceleration peaks. 2.7.5 The method of evaluating the vibration dose value. This method is more sensitive to changes in vibration peaks than ordinary root-mean-square evaluation methods. sensitive. 2.8 Other nouns 2.8.1 Pathological phenomena such as nausea and vomiting caused by vibration below 1 Hz. 2.8.2 The ratio of the peak value of the weighted acceleration time history to the root mean square value of the weighted acceleration. GB/T 4971-2009 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4971-2009_English be delivered?Answer: Upon your order, we will start to translate GB/T 4971-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 4971-2009_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4971-2009 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
