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Author : Balu P. Vasudev
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (464 download)
Download or read book Structural Analysis of Injection Molded Composite Fan Blades written by Balu P. Vasudev and published by . This book was released on 1997 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781719390224
Total Pages : 48 pages
Book Rating : 4.3/5 (92 download)
Download or read book Structural Analysis and Optimization of a Composite Fan Blade for Future Aircraft Engine written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report addresses the structural analysis and optimization of a composite fan blade sized for a large aircraft engine. An existing baseline solid metallic fan blade was used as a starting point to develop a hybrid honeycomb sandwich construction with a polymer matrix composite face sheet and honeycomb aluminum core replacing the original baseline solid metallic fan model made of titanium. The focus of this work is to design the sandwich composite blade with the optimum number of plies for the face sheet that will withstand the combined pressure and centrifugal loads while the constraints are satisfied and the baseline aerodynamic and geometric parameters are maintained. To satisfy the requirements, a sandwich construction for the blade is proposed with composite face sheets and a weak core made of honeycomb aluminum material. For aerodynamic considerations, the thickness of the core is optimized whereas the overall blade thickness is held fixed so as to not alter the original airfoil geometry. Weight is taken as the objective function to be minimized by varying the core thickness of the blade within specified upper and lower bounds. Constraints are imposed on radial displacement limitations and ply failure strength. From the optimum design, the minimum number of plies, which will not fail, is back-calculated. The ply lay-up of the blade is adjusted from the calculated number of plies and final structural analysis is performed. Analyses were carried out by utilizing the OpenMDAO Framework, developed at NASA Glenn Research Center combining optimization with structural assessment. Coroneos, Rula M. Glenn Research Center STRUCTURAL ANALYSIS; FAN BLADES; PRESSURE DISTRIBUTION; HONEYCOMB STRUCTURES; POLYMER MATRIX COMPOSITES; CENTRIFUGAL FORCE; ENGINE DESIGN; AIRFOIL PROFILES
Author : Dimitris I Chortis
Publisher : Springer Science & Business Media
ISBN 13 : 3319008641
Total Pages : 240 pages
Book Rating : 4.3/5 (19 download)
Download or read book Structural Analysis of Composite Wind Turbine Blades written by Dimitris I Chortis and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book concerns the development of novel finite elements for the structural analysis of composite beams and blades. The introduction of material damping is also an important aspect of composite structures and it is presented here in terms of their static and dynamic behavior. The book thoroughly presents a new shear beam finite element, which entails new blade section mechanics, capable of predicting structural blade coupling due to composite coupling and/or internal section geometry. Theoretical background is further expanded towards the inclusion of nonlinear structural blade models and damping mechanics for composite structures. The models effectively include geometrically nonlinear terms due to large displacements and rotations, improve the modeling accuracy of very large flexible blades, and enable the modeling of rotational stiffening and buckling, as well as, nonlinear structural coupling. Validation simulations on specimen level study the geometric nonlinearities effect on the modal frequencies and damping values of composite strips of various angle-ply laminations under either tensile or buckling loading. A series of correlation cases between numerical predictions and experimental measurements give credence to the developed nonlinear beam finite element models and underline the essential role of new nonlinear damping and stiffness terms.
Author : Rula M. Coroneos
Publisher : BiblioGov
ISBN 13 : 9781289151720
Total Pages : 54 pages
Book Rating : 4.1/5 (517 download)
Download or read book Structural Analysis and Optimization of a Composite Fan Blade for Future Aircraft Engine written by Rula M. Coroneos and published by BiblioGov. This book was released on 2013-07 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report addresses the structural analysis and optimization of a composite fan blade sized for a large aircraft engine. An existing baseline solid metallic fan blade was used as a starting point to develop a hybrid honeycomb sandwich construction with a polymer matrix composite face sheet and honeycomb aluminum core replacing the original baseline solid metallic fan model made of titanium. The focus of this work is to design the sandwich composite blade with the optimum number of plies for the face sheet that will withstand the combined pressure and centrifugal loads while the constraints are satisfied and the baseline aerodynamic and geometric parameters are maintained. To satisfy the requirements, a sandwich construction for the blade is proposed with composite face sheets and a weak core made of honeycomb aluminum material. For aerodynamic considerations, the thickness of the core is optimized whereas the overall blade thickness is held fixed so as to not alter the original airfoil geometry. Weight is taken as the objective function to be minimized by varying the core thickness of the blade within specified upper and lower bounds. Constraints are imposed on radial displacement limitations and ply failure strength. From the optimum design, the minimum number of plies, which will not fail, is back-calculated. The ply lay-up of the blade is adjusted from the calculated number of plies and final structural analysis is performed. Analyses were carried out by utilizing the OpenMDAO Framework, developed at NASA Glenn Research Center combining optimization with structural assessment.
Author : Rula M. Coroneos
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (82 download)
Download or read book Structural analysis and optimization of a composite fan blade for future aircraft engine written by Rula M. Coroneos and published by . This book was released on 2012 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (317 download)
Download or read book Structural Evaluation of Exo-Skeletal Engine Fan Blades written by and published by . This book was released on 2003 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721636532
Total Pages : 32 pages
Book Rating : 4.6/5 (365 download)
Download or read book Composite Fan Blade Design for Advanced Engine Concepts written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-21 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aerodynamic and structural viability of composite fan blades of the revolutionary Exo-Skeletal engine are assessed for an advanced subsonic mission using the NASA EST/BEST computational simulation system. The Exo-Skeletal Engine (ESE) calls for the elimination of the shafts and disks completely from the engine center and the attachment of the rotor blades in spanwise compression to a rotating casing. The fan rotor overall adiabatic efficiency obtained from aerodynamic analysis is estimated at 91.6 percent. The flow is supersonic near the blade leading edge but quickly transitions into a subsonic flow without any turbulent boundary layer separation on the blade. The structural evaluation of the composite fan blade indicates that the blade would buckle at a rotor speed that is 3.5 times the design speed of 2000 rpm. The progressive damage analysis of the composite fan blade shows that ply damage is initiated at a speed of 4870 rpm while blade fracture takes place at 7640 rpm. This paper describes and discusses the results for the composite blade that are obtained from aerodynamic, displacement, stress, buckling, modal, and progressive damage analyses. It will be demonstrated that a computational simulation capability is readily available to evaluate new and revolutionary technology such as the ESE. Abumeri, Galib H. and Kuguoglu, Latife H. and Chamis, Christos C. Glenn Research Center NASA/TM-2004-212943, E-14383
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723381829
Total Pages : 24 pages
Book Rating : 4.3/5 (818 download)
Download or read book Structural Analysis of Hollow Blades written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-20 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A torsional stress analysis of hollow fans blades by the finite element method is presented. The fans are considered to be double circular arc blades, hollowed 30 percent, and twisted by a component of the centrifugal force by the rated revolution. The effects of blade hollowing on strength and rigidity are discussed. The effects of reinforcing webs, placed in the hollowed section in varying numbers and locations, on torsional rigidity and the convergence of stresses, are reported. A forecast of the 30 percent hollowing against torsional loadings is discussed. Ogawa, A. and Sofue, Y. and Isobe, T. Unspecified Center NASA-TM-75718, NAL-TR-533 NASW-3199
Author : Akinori Ogawa
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (756 download)
Download or read book Structural analysis of hollow blades written by Akinori Ogawa and published by . This book was released on 1978 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Melih Cemal Kuşhan
Publisher : Springer Nature
ISBN 13 : 3030918734
Total Pages : 423 pages
Book Rating : 4.0/5 (39 download)
Download or read book Materials, Structures and Manufacturing for Aircraft written by Melih Cemal Kuşhan and published by Springer Nature. This book was released on 2022-04-25 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive look at materials science topics in aerospace, air vehicle structures and manufacturing methods for aerospace products, examining recent trends and new technological developments. Coverage includes additive manufacturing, advanced material removal operations, novel wing systems, design of landing gear, eco-friendly aero-engines, and light alloys, advanced polymers, composite materials and smart materials for structural components. Case studies and coverage of practical applications demonstrate how these technologies are being successfully deployed. Materials, Structures & Manufacturing for Aircraft will appeal to a broad readership in the aviation community, including students, engineers, scientists, and researchers, as a reference source for material science and modern production techniques.
Author : R. W. Cornell
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (11 download)
Download or read book Structural Design and Analysis of Prop-fan Blades written by R. W. Cornell and published by . This book was released on 1979 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.:/5 (317 download)
Download or read book Cost Analysis of Composite Fan Blade Manufacturing Processes written by and published by . This book was released on 1980 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (317 download)
Download or read book Coupled Multi-disciplinary Simulation of Composite Engine Structures in Propulsion Environment written by and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (317 download)
Download or read book Structural Analysis of High-rpm Composite Propfan Blades for a Cruise Missile Wind Tunnel Model written by and published by . This book was released on 1993 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zhixin Ma
Publisher :
ISBN 13 :
Total Pages : 462 pages
Book Rating : 4.:/5 (318 download)
Download or read book Integrally Damped Efficient Low-noise Composite Fan Blades written by Zhixin Ma and published by . This book was released on 2004 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (317 download)
Download or read book Structural Analysis of Low-speed Composite Propfan Blades for the LRCSW Wind Tunnel Model written by and published by . This book was released on 1992 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
