Probabilistic Design of a Plate-Like Wing to Meet Flutter and Strength Requirements | Zendy

W Stroud | Zendy; T. Krishnamurthy | Zendy; Brian H. Mason | Zendy; Steven A. Smith | Zendy; Ahmad Naser | Zendy

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Probabilistic Design of a Plate-Like Wing to Meet Flutter and Strength Requirements

Author(s) -

W Stroud,

T. Krishnamurthy,

Brian H. Mason,

Steven A. Smith,

Ahmad Naser

Publication year - 2002

Publication title -

43rd aiaa/asme/asce/ahs/asc structures, structural dynamics, and materials conference

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2002-1464

Subject(s) - flutter , reliability (semiconductor) , probabilistic logic , structural engineering , monte carlo method , stress (linguistics) , wing , minimum weight , optimal design , engineering , reliability engineering , control theory (sociology) , computer science , mathematics , aerodynamics , power (physics) , statistics , aerospace engineering , physics , linguistics , philosophy , quantum mechanics , control (management) , artificial intelligence

An approach is presented for carrying out reliability-based design of a metallic, plate-like wing to meet strength and flutter requirements that are given in terms of risk/reliability. The design problem is to determine the thickness distribution such that wing weight is a minimum and the probability of failure is less than a specified value. Failure is assumed to occur if either the flutter speed is less than a specified allowable or the stress caused by a pressure loading is greater than a specified allowable. Four uncertain quantities are considered: wing thickness, calculated flutter speed, allowable stress, and magnitude of a uniform pressure load.

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