Page Comparison

...

Research

Car Requirements

Safety Criteria:

...

• Head Restraint Lateral & Longitudinal Stability

• Vertical Load Strength of Cushion Frame 

• Seat Ornamentation & Knob Pull-off Strength 

• Actuator Strength in the Direction of Operation

• Seat-back Map Pocket Static Strength Requirements

• Seat-back Torsion Strength

• Jounce Test (Cushion & Back)

• Armrest Strength & Operating Effort

• Latch Catch Spring Test

• Jump Seat Strength

• Fatigue Resistance (seat structural fatigue durability test)

• Vibration Test for Resonance Point Detection

• Thermal Cycle Ageing Test or Creep Test 

Risk/Unknowns Identification

What are the major technical risks or unknowns associated with this project?

Prompts for areas of investigation include regulation risks (i.e. headlight brightness doesn’t meet regs), mechanical risks (i.e headlight melting from high temperature), manufacturing/assembly risks (i.e how does headlight mount to aero body?)

Risk/Unknown Mitigation Concepting

What can we do to mitigate these aforementioned risks/unknowns?

...

Risk/Unknown

...

Order of Importance

...

Mitigation

...

i.e Headlight brightness doesn’t meet regs

...

1

...

3M Dual lock recosable fastener for seat

https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Dual-Lock-Reclosable-Fastener-SJ3541/?N=5002385+3293242271&rt=rud

Data sheet/ Typical Performance https://multimedia.3m.com/mws/media/1591570O/3m-dual-lock-reclosable-fastener-sj3542.pdf

Model SJ3541

• Black, interlocking mushroom-shaped heads (400 stem density per square inch) provide strong, reliable and durable fastening that can be opened and closed multiple times

• Mates with Type 170 and Type 250 stem densities to provide different strength combinations

• Synthetic rubber-based adhesive bonds well to a variety of substrates including low surface energy plastics such as polyethylene and polypropylene

• Strong fastener secures with an audible snap, verifying closure

• An alternative to screws and bolts, this hidden fastener provides a snug fit and smooth aesthetic appearance

• Features good temperature resistance of 120°F (49°C)

• Best suited for indoor use

3M™ Dual Lock™ Reclosable Fastener SJ3541 is the easy and clear alternative to traditional fastening methods, such as screws, nuts or bolts. It is designed to deliver a durable, reclosable fastening solution (which can be opened and closed multiple times) which bonds to a variety of substrates including many plastics and low surface energy materials.

Specifications

Seat Calculations

Ballast Calculations

Strap we are using https://www.canadiantire.ca/en/pdp/light-duty-lashing-straps-1-in-x-12-ft-2-pk-0402701p.html?rrec=true#spc

Bolster Update : Using straps for bolster instead of velcro. Max Newtons is 1471 which is 150kg which is below the 204kg max so it is safe

Seat and Bolster Test Bench - What is needed

1. Chassis needs to be installed

   1. maybe bottom panels

   2. maybe doors (the more parts of the car installed, the better)

   3. the more things installed the more parts we can try and fix for comfort (ex doors arent necessary but would help with overall comfort)

2. Construct bolsters and Seats out of wood

   1. general shape does not need to have exact curvature

   2. head part so we can see comfort with helmet

   3. make stackable seat separately and test comfort

   4. same for bolsters

   5. can get fabrics and cushions samples to test comfort

Questions to ask people testing

1. Rate comfort of cushions

2. Seat design, stackable seat overall comfort of seat and bolsters

3. Suggestions for how it can be modified/changed and proceed with those changes

Fabrics

• Doesnt need waterproof coating being used for catamaran cover

Material options

• PVC Fabric

  • lower end

  • uglier asthetic

  • Not very confortable

  • cheaper

• Nylon Fabric

  • universal seat fabric

  • Durable and Cheap

• Vinyl Fabric

  • Easy to clean

  • Nice asthetic (gives leather astheitic without being faux leather)

  • Durable and good quality

  • Comfortable

  • Good for a seat cover

  • Comes in wide range of colours