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Engineering planning & Project Management

CAD Design & CAE Analysis




Press Forming


Project Objective

Design, structural analysis and development of three seat assembly comprising:

  • Composite seat backs
  • Mixed metal seat frame predominantly aluminium

Customer brief to deliver project in nine months

Penso in Action

  • Timing prototype to production in 9 months
  • Non-linear static analysis of aircraft maximum flight, gust and ground loads, including emergency landing, using Abaqus
  • Non-linear dynamic analysis of static 10 deg. ‘pitch & roll’ preload using LS-DYNA
  • Intelligent manufacturing process development leading to significant improvement in production time
  • Use of epoxy carbon fibre systems to deliver key objective of leg room improvement
  • Design to meet stringent aerospace fire regulations (FAR 25.823)

Penso’s Results and Benefits

  • Typical weight saving of 1 Kg / seat.
  • Saving of £600,000 per kg over the lifetime of the aircraft
  • Delivered 2” increase in leg room at knee level with no reduction in seat density
1 kg per seat
total weight saving
£600,000 per kg saving
over the lifetime of the aircraft

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