Open AccessComputational Engine Structural Analysis
Author(s) -
C. C. Chamis,
Robert H. Johns
Publication year - 1986
Language(s) - English
Resource type - Conference proceedings
DOI - 10.1115/86-gt-70
Subject(s) - computer science , rotor (electric) , multidisciplinary approach , aeroelasticity , computational model , transient (computer programming) , computational fluid dynamics , stator , helicopter rotor , aero engine , aerospace engineering , aerodynamics , mechanical engineering , simulation , engineering , operating system , sociology , social science
A significant research activity at the NASA Lewis Research Center is the computational simulation of complex multidisciplinary engine structural problems. This simulation is performed using computational engine structural analysis (CESA) which consists of integrated multidisciplinary computer codes in conjunction with computer post-processing for “problem-specific” application. A variety of the computational simulations of specific cases are described in some detail in this paper. These case studies include (1) aeroelastic behavior of bladed rotors, (2) high velocity impact of fan blades, (3) blade-loss transient response, (4) rotor/stator/squeeze-film/bearing interaction, (5) blade-fragment/rotor-burst containment, and (6) structural behavior of advanced swept turboprops. These representative case studies were selected to demonstrate the breadth of the problems analyzed and the role of the computer including post-processing and graphical display of voluminous output data.
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