BS ISO 17949:2013 pdf free
BS ISO 17949:2013 pdf free.Impact test procedures for road vehicles
1) Using only the controls that move the seat fore-aft, return the test seat to the rearmost position to facilitate placement of the SAE H-point manikin.
2) Place the SAE H-point manikin in the seatand position the seatto the test position recorded [see 5.3.1(8)].
3) Follow the procedure as described in SAE J 826 except that the length of the lower leg and thigh segments of the SAE H-point manikin shall be adjusted to the 50th percentile (418 mm) and 10th percentile (408 mm) positions, respectively.
4) Set the seat back angle to the angle specified by the manufacturer. If the seat back design angle is not specified by the manufacturer, set the seat back angle to 23° (+1°) or as close to 23° as possible (as measured by the SAE H-point manikin).
5) Record the H-point X, Y, and Z coordinates.
6) The WS50 H-point is set 20 mm forward of SAE H-point manikin X coordinate; Y and Z coordinates of the WS50 H-point are not adjusted.
Procedure for the WS50 dummy placement
1) Using only the controls that move the seat fore-aft, move the test seat to the rearmost position to facilitate placement of the WS dummy.
2) Place the WS50 dummy in the seat such that the mid-sagittal plane is coincident with the centreline markings and the upper torso is resting against the seat back.
3) Apply a fore-aft and lateral rocking motion to settle the pelvis rearward in the seat.
一To ensure a repeatable and stable pelvis position, ensure that the pelvis is in contact with the seat cushion over the whole length.
一To ensure a repeatable placement of the lower abdominal rib, make sure it is inside the pelvis flesh (not on top of it).
4) Move the seat together with the WS50 to the test seat position defined in 5.3.1 (8). Ifit is not possible to reach the seat test position due to knee contact, shift the targeted test seat position rearwards in the stepwise increments to the closest position where the knee clearance is at least 5 mm. Modify the target WS50 H-point accordingly.BS ISO 17949 pdf download.
