HPM & HRMD


HPM / HRMD Positioning Tool

These JavaScript tools developed by Arup are intended for use in conjunction with the Oasys Primer and LS-DYNA Software. The tools allow for a prediction of the H-Point based on the SAE J826 regulation and seat head restraint assessment following IIHS, NHTSA, EuroNCAP and C-NCAP, respectively.

H-Point Machine (HPM)

The Oasys HPM Positioning Tool provides an interactive environment to set-up and analyse the positioning of the H-Point Machine (HPM) in a seat.

Using the Oasys HPM positioning tool gives seat engineers confidence in the H-Point of a new seat
design and allows them an opportunity to adjust the design if necessary.

This improved understanding of the seat will allow more accurate predictions of whiplash performance and other crash test simulations where dummy positioning is critical.

Head Restraint Measurement Device (HRMD)

The Oasys HRMD Positioning Tool provides an interactive environment to set-up and analyse the positioning of the H-Point Machine in a seat and to assess the head restraint scoring.

All pre-simulation positioning of the HPM is completed automatically within Oasys PRIMER, and the output is a ready-to-run LS-DYNA model. Once the analysis is completed, Oasys PRIMER is used for interpretation of the results to report the H-point co-ordinates and back angle of the HPM.

 

For more information on these pedestrian impactor models please contact Arup or the relevant distributor for your territory; details are on our distributors page.