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GMW14831-2012 Dynamic Strength

作者:admin  发布时间:2016-12-11 08:52:46  点击率:2053

3.7.3.6.3 Dynamic Strength (Three Point System).


3.7.3.6.3.1 Dynamic Test of Belt Assembly. The belt system shall withstand the ECE R16 section 7.7 Dynamic Test of Belt Assembly or of the Restraint System without failure or fracture of any load carrying parts.


3.7.3.6.3.2 Second Impact Strength. The belt system should withstand the ECE R16 dynamic performance sled test twice, without failure or fracture of any parts. The dummy should be repositioned before the second test without unbuckling the belt or adjusting any parts of the system. If the retractor remains locked and does not retract any loose webbing, the loose webbing can be removed by using a shortening device (e.g., auxiliary spool).


标准安全带动态测试

No.

Measurement description

Test Result List

1st impact strength

Second impact strength

1

Sled velocity  [50±1Km/h]

50.47km/h

50.74km/h

2

Dummy

TNO-10 dummy

TNO-10 dummy

3

Test pluse [ECE R16 Appendix 9]

31.89g / 80ms

30.33g / 79.4ms

4

Stowed webbing length

1000mm

1000mm

5

Dummy displacement

Chest displacement

368mm

470mm

6

Velocity at 300 mm

19.178km/h

24.48km/h

7

Pelvis displacement

96mm

132mm

8

Electrically ignited seatbelt tensioner

TTF=0ms

Null

9

Load

Retractor webbing axis force

4.441KN

4.326KN

10

Upper shoulder force

5.031KN

5.400KN

11

Lap belt force

8.343KN

8.949KN

12

Buckle opening force 

------N

------N

13

Stop distance  [400mm±50mm]

410mm

410mm