Headrest Backing

Subteam: ChassisSubsystem: ErgonomicsAssembly: HeadrestCars: CR22, CR25, CR26I

Purpose

The structural plate the headrest foam mounts to.

Function

Carries the headrest load into the main hoop.

Design Process

No part-specific design process is documented. The Ergonomics subsystem design process applies: 1. Take driver body measurements and place them against the ergonomics study ranges. 2. Mold the seat insert to the driver in the car with expanding foam, then hand post-process and cover. 3. Set headrest and harness mounting to the rules and to the driver's shoulder height. 4. Run a simulator or on-track endurance stint and measure fatigue with EMG. 5. Iterate the insert shape at the identified pressure and support points.

Full Material List

CFRP, Nomex sandwich on CR26I.

Reoccuring issues

None recorded. This part has no entry in Knowledge_Transfer/Issue Logging/Fault Vault.xlsx, in either Issue Log.xlsx, in CR22/Issue Tracking/Shakedown 7-15-23.xlsx, or in any design review issue list found in CrimsonStorage or Box.

Still to document

Nothing in CrimsonStorage covers these yet.

Design Constraints — What held back the design whether it be location, time, materials etc
Analysis — How you get quantitative, predictive information on the part
Manufacturing Process — How it is assembled in detail from start to finish
Improvements — Improvements for this generation
Properties — Size, weight, mass, charge, thermal properties, anything else relevant