MT-1620 al.2002 Overview of Structural design Process (Review from U.E. Purpose: Assure"structural integrity"while minimizing cost In aerospace structures, cost often means weight Why? Saving a pound of weight means more payload(extra passengers, more satellites fuel(longer distance, longer duration via extended station keeping Amount industries(civilian)are willing to pay to save a pound of weight Satellites 10,000-$20,000( N/o servicing) Transport aircraft 100-$200 General aircraft 25 Automobile ~9000 Paul A Lagace @2001 Unit 1 -p 5MIT - 16.20 Fall, 2002 Overview of Structural Design Process (Review from U.E.) Purpose: Assure “structural integrity” while minimizing cost In aerospace structures, cost often means weight. Why? Saving a pound of weight means more - payload (extra passengers, more satellites) - fuel (longer distance, longer duration via extended station keeping) • • • Amount industries (civilian) are willing to pay to save a pound of weight: Satellites $10,000 - $20,000 (w/o servicing) Transport Aircraft $100 - $200 General Aircraft $25 Automobile ∼ $0.00 Paul A. Lagace © 2001 Unit 1 - p. 5