11-06-2013, 02:40 PM
SEMESTER EXAMINATIONS FOR COMPUTATIONAL APPROACHES TO AEROSPACE VEHICLE DESIGN
COMPUTATIONAL APPROACHES.pdf (Size: 39.59 KB / Downloads: 62)
Answer any five questions
All questions carry equal marks
1. Discuss the combined approaches-Hybrid Searches and Meta Heuristics.
2. Discuss the following uncertainty modeling techniques
a) Six-sigma method and
b) Welch-Sacks method.
3. Compare different types of sensitivity analysis techniques and discuss about case studies involving aerodynamic and aerostructural analyses.
4. Explain in detail the collaborative optimization using a flow-chart and discuss its computational aspects and theoretical properties.
5. Discuss variable metric and conjugate gradient methods for a multi-variable optimizer.
6. Discuss the issues involved in the analysis and design of coupled systems. Explain through a schematic diagram the blackboard-based multi-disciplinary optimization process work flow.
7. Discuss basic steps involved in stagewise unconstrained optimization of computationally expensive functions using global surrogates; also explain surrogate assisted optimization using global models.
8. Explain the basic building blocks from which an adaptive mesh control scheme can be assembled. Dscuss mesh generation quality and adaptation.