Download presentation

Presentation is loading. Please wait.

Published byLuke Caldwell Modified over 3 years ago

1
Lin Chen Tom Nierodzinski Yan Di Lv Zhongyuan Optimum Sensitivity Analysis MAE 550 12/10/07

2
Outline Objective Problem Formulation Results Analysis Conclusion

3
Objective Better understand OSA by comparing different parameters for the same design problem

4
Problem Formulation Parameters Chosen: P = Stress E = Youngs Modulus σ = allowable stress y = deflection Design Variables: b i and h i i = 1,5 (Total of 10 design variables) (Total of 21 constraints)

5
Problem Formulation cont. DOT results of optimum point

6
OSA Analysis Lambda values

7
OSA Analysis Matrix dimensions for OSA

8
Stress(P) = 50,000 N

9
Active to inactive p = 5.6*10^3 Inactive to Active p = 3.52*10^3 Minimum % 7%

10
Youngs Modulus = 2x10 7 Pa

11
Active to inactive p = 1.56*10^6 Inactive to Active p = 7.47*10^5 Minimum % 3.7%

12
Sigma = 14,000 N/cm 2

13
σ = 14,000 N/cm 2 Active to inactive p = 3.64*10^3 Inactive to Active p = 345 Minimum % 2.5%

14
Y(deflection) = 2.5 cm

15
Active to inactive p = 0.19 Inactive to Active p = 0.0924 Minimum % 3.69%

16
Conclusion OSA is limited in minimum delta p In this case inactive constraints are more sensitive

17
Questions?

Similar presentations

Presentation is loading. Please wait....

OK

2.4 – Solving Equations with the Variable on Each Side.

2.4 – Solving Equations with the Variable on Each Side.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google