Aerospace & Defense: Design Tolerance & Analysis Software Practical Usage

It can be really difficult to repair a satellite that’s already in orbit, a weapon that’s in use in the field, or the landing gear on a jet that took off hours ago. The aerospace and defense industry represents one of the biggest sectors that Sigmetrix’ serves. Our CETOL 6σ tolerance analysis and GD&T Advisor products enable some of the industry’s leading companies to expand their precision assembly engineering and design tolerance analysis all the way from early concept design through inspection, providing product development teams the ability to deliver higher-quality and more precisely engineered products.


KEY PROJECTS:

  • satellite systems
  • landing gear
  • missile systems
  • optics
  • weaponry

 

 

 

Application – Space & Communications

Objective: World leader in providing fixed satellite services, including transponder leasing for corporate data networks used CETOL 6σ to address design issue with PBB hole position and resulting product defects.

Results: Determined statistical Quality of 0.9s – 105,304 Defects Per Million. CETOL 6σ indicated that holding the hole position to 0.005 would cut the defects per million in half!

 

Application – Aerospace Landing Gear

Objective: Design tolerance analysis to improve and address weight requirements for the landing gear, without the need for shims.

Results: CETOL 6σ for CATIA used for analysis on landing gear system determined minimal changes while still retaining design robustness. Took into consideration “free play” and shimmed configurations of the system. Successful pilot project completed in less than 60 days; completion of analysis for high profile militiary projects for the customer

 

 

Application – Optics Alignment

Objective: A major challenge faced in this industry segment is impact lens rotation has on optic accuracy. CETOL 6σ was used here to address alignment issues with respect to this rotation.

Results: CETOL 6σ was used to determine the largest design tolerance values that would still achieve the optical cell focal length and center-line error maximum variation requirement.

OPTIC IMAGE

Application – Missile Guidance System

Objective: Development of infrared camera had either a wide angle or narrow angle view that were switched as needed to pick up the tracking signal on missile

Results: CETOL 6σ analysis dramatically and easily reduced the effects of variation in the design, producing a robust product

  • Better  by developing more functionally-rich products
  • Faster  by reducing product design through manufacturing transition time
  • Reliable  by building higher quality products that last
  • Cheaper  by reducing manufacturing and warranty costs