Modal and Impact Dynamics Analysis of an Aluminum Cylinder PDF Download
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Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781724110862
Category :
Languages : en
Pages : 26
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Book Description
This paper presents analyses for the modal characteristics and impact response of an all-aluminum cylinder. The analyses were performed in preparation for impact tests of the cylinder at The Impact Dynamics Research Facility (IDRF) at the NASA Langley Research Center. Mode shapes and frequencies were computed using NASTRAN and compared with existing experimental data to assess the overall accuracy of the mass and stiffness of the finite element model. A series of non-linear impact analyses were then performed using MSC Dytran in which the weight distribution on the floor and the impact velocity of the cylinder were varied. The effects of impact velocity and mass on the rebound and gross deformation of the cylinder were studied in this investigation. Lessard, Wendy B. Langley Research Center NASA/TM-2002-211964, L-18246, NAS 1.15:211964...
Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781724110862
Category :
Languages : en
Pages : 26
Get Book Here
Book Description
This paper presents analyses for the modal characteristics and impact response of an all-aluminum cylinder. The analyses were performed in preparation for impact tests of the cylinder at The Impact Dynamics Research Facility (IDRF) at the NASA Langley Research Center. Mode shapes and frequencies were computed using NASTRAN and compared with existing experimental data to assess the overall accuracy of the mass and stiffness of the finite element model. A series of non-linear impact analyses were then performed using MSC Dytran in which the weight distribution on the floor and the impact velocity of the cylinder were varied. The effects of impact velocity and mass on the rebound and gross deformation of the cylinder were studied in this investigation. Lessard, Wendy B. Langley Research Center NASA/TM-2002-211964, L-18246, NAS 1.15:211964...
Author: Dahsin Liu
Publisher: DEStech Publications, Inc
ISBN: 1605950726
Category : Technology & Engineering
Languages : en
Pages : 317
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Book Description
Book comprises multiple investigations into dynamic loading's effects on composite materials. With approaches ranging from weight drop to high-velocity and high-impact testing, as well as FEM and other analytic techniques, leading researchers explain damage, delamination and other effects in a variety of composites types and configurations.
Author: Randy Mayes
Publisher: Springer Science & Business Media
ISBN: 1461465400
Category : Science
Languages : en
Pages : 332
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Book Description
Topics in Experimental Dynamics Substructuring, Volume 2: Proceedings of the 31st IMAC, A Conference and Exposition on Structural Dynamics, 2013, the second volume of seven from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on: Nonlinear Substructures SEM Substructures Wind Turbine Testbed – Blade Modeling & Correlation Substructure Methods SEM Substructures Wind Turbine Testbed Frequency Based Substructures Fixed Base Substructure Methods Substructure Methods SEM Substructures Wind Turbine Testbed Frequency Based Substructures Fixed Base Substructure Methods
Author: P.S. Westine
Publisher: Elsevier
ISBN: 0444598138
Category : Technology & Engineering
Languages : en
Pages : 397
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Book Description
Here is the second revised and updated edition of probably the most practical sourcebook on similarity methods and modeling techniques available. Written by leading authorities who incorporate many of the latest advances in the field, this new work maps out techniques for modeling as well as instrumentation and data analysis for an extremely wide array of problems in engineering dynamics. This practical reference uses experimental test data on various engineering problems demonstrating exactly how and why these similarity methods work. The problems involve spread of oil slicks, explosive cratering, car crashes, space vehicle heat exchange, explosive forming, and more. The spectrum of topics covered and number of examples are far greater than in other texts. Of particular importance are the dissimilar material modeling techniques which bring new versatility and freedom to the modeler in structural dynamics. The book also contains a clear, in-depth discussion of the theory underlying modeling and includes alternate methods for developing model laws. The work will undoubtedly prove invaluable to every professional involved in testing or design of dynamic experiments.
Author: R. Allemang
Publisher: Springer Science & Business Media
ISBN: 1461424194
Category : Technology & Engineering
Languages : en
Pages : 652
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Book Description
Topics in Modal Analysis II, Volume 6: Proceedings of the 30th IMAC, A Conference and Exposition on Structural Dynamics, 2012, is the sixth volume of six from the Conference and brings together 65 contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on: Aerospace, Acoustics, Energy Harvesting, Shock and Vibration, Finite Element, Structural Health Monitoring, Biodynamics Experimental Techniques, Damage Detection, Rotating Machinery, Sports Equipment Dynamics, Aircraft/Aerospace.
Author: Yan Wen Wu
Publisher: Trans Tech Publications Ltd
ISBN: 3038135003
Category : Technology & Engineering
Languages : en
Pages : 1653
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Book Description
Selected, peer reviewed papers of the 2011 International Conference on Materials Engineering for Advanced Technologies
Author:
Publisher:
ISBN:
Category : Shock (Mechanics)
Languages : en
Pages : 492
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Book Description
Author: A. Cheshmehzangi
Publisher: IOS Press
ISBN: 1643684132
Category : Technology & Engineering
Languages : en
Pages : 724
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Book Description
Civil architecture and structural engineering may be subjects to which most of us never give a second thought, but both these disciplines are crucial to the built environment in which we live, and without the skills of those who work in them, our buildings and infrastructure would lack the safety and reliability that we all take for granted. This book presents the proceedings of ICCASE 2023, the 7th International Conference on Civil Architecture and Structural Engineering, held in Guangzhou, China, from 14 - 16 April 2023 as a virtual event, and attended by around 250 international participants. The aim of the conference was to discuss recent advances and new perspectives in civil architecture and structural engineering, and to gain insight into the current state of the field and future scenarios. A total of 190 submissions were received for the conference, of which 78 were accepted for presentation after peer review. These are divided into 4 sections: civil construction and underground structure analysis; underground space and special structure engineering; construction material quality and performance research; and structural seismic design and reinforcement engineering. Topics covered included high-rise buildings and large-span structures; the monitoring and control of structures, tunnels and underground structures; calculation principles of the seismic design of structures; and seismic isolation technology of structures, among others. The book offers a comprehensive overview of civil architecture and structural engineering today, and will be of interest to all those working in the field.
Author: Srinivasan Chandrasekaran
Publisher: Springer
ISBN: 8132222776
Category : Technology & Engineering
Languages : en
Pages : 305
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Book Description
This book attempts to provide readers with an overall idea of various types of offshore platform geometries. It covers the various environmental loads encountered by these structures, a detailed description of the fundamentals of structural dynamics in a class-room style, estimate of damping in offshore structures and their applications in the preliminary analysis and design. Basic concepts of structural dynamics are emphasized through simple illustrative examples and exercises. Design methodologies and guidelines, which are FORM based concepts are explained through a few applied example structures. Each chapter also has tutorials and exercises for self-learning. A dedicated chapter on stochastic dynamics will help the students to extend the basic concepts of structural dynamics to this advanced domain of research. Hydrodynamic response of offshore structures with perforated members is one of the recent research applications, which is found to be one of the effective manner of retrofitting offshore structures. Results of recent research, validated by the experimental and numerical studies are presented to update of the readers. Integration of the concepts of structural dynamics with the FORM-evolved design of offshore structures is a unique approach used in this book. The book will prove useful to the practicing and consulting offshore structural engineers, as also to students and researchers working in the field.
Author: Howard Chung
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 68
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Book Description
