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1 edition of A modal analysis of the violin using MSC/NASTRAN and PATRAN found in the catalog.

A modal analysis of the violin using MSC/NASTRAN and PATRAN

George Anthony Knott

A modal analysis of the violin using MSC/NASTRAN and PATRAN

by George Anthony Knott

  • 87 Want to read
  • 27 Currently reading

Published by Naval Postgraduate School, Available from National Technical Information Service in Monterey, Calif, Springfield, Va .
Written in English

    Subjects:
  • Computer-aided design,
  • Computer simulation,
  • Finite element method--Computer programs

  • About the Edition

    The MSC/NASTRAN finite element computer program and a Cray XMP computer were used to study the modal characteristics of a violin with the Stradivari shape. The violin geometry was modeled using an arcs of circles scheme with PATRAN, a finite element graphics pre/postprocessor program. The violin was modeled in-vacu and with free boundary conditions. Belly, back, sound post, bassbar, neck, bridge, tail-piece, strings, rib linings, end and corner blocks are the components of the model. Mode shapes and frequencies wer calculated for free top and back plates, the violin box, and the complete violin system, including the strings. The results obtained from the finite element technique were compared to experimental data from real violins collected by other investigators.

    Edition Notes

    StatementGeorge Anthony Knott
    The Physical Object
    Pagination125 p.
    Number of Pages125
    ID Numbers
    Open LibraryOL25581817M

    “A Modal Analysis of the Violi n Usin g MSC/NASTRAN and PATRAN,” Mechanics P hD thesis, [3] Bretos J, Santamaria C, and A lonso Moral J., “Finite Element Analysis and Experimental. Correct “Deficiencies” in Modal Transient Analysis Start from a quasi-static initial condition Include only flexible contribution to displacement outputs Static and Dynamic Uncertainty Factors (SUF and DUF) Conversion of structural to viscous damping. Initial ConditionsFile Size: KB.

      The setar, a Persian long-necked lute, is analyzed by means of experimental modal analysis and finite element (FE) method. The experimental analysis is performed using a combination of impulse hammer and laser Doppler vibrometer (LDV), which has led to the extraction of structural mode shapes, natural frequencies, and modal by: 3.   Knott GA () A modal analysis of the violin using MSC/NASTRAN and PATRAN. M.S. Thesis, Naval Postgraduate School. Available through NTIS website (March ) Google ScholarCited by: 1.

    n Advanced Dynamic Analysis User's Guide Pdf application for Abaqus which provides advanced discussed the stress and dynamic analysis of truck ladder MSC Nastran is a multidisciplinary structural analysis (25) NX Nastran Basic Dynamic Analysis User's Guide, This tutorial presents how to make an analysis with Natran Patran. MSC Nastran, industry leading multidisciplinary FEA solver, provides a complete solution to virtually test products, big or small, for their dynamic behavior subjected to a variety of loads, reducing product development costs, while improving safety and performance of the Size: KB.


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A modal analysis of the violin using MSC/NASTRAN and PATRAN by George Anthony Knott Download PDF EPUB FB2

Full text of "A modal analysis of the violin using MSC/NASTRAN and PATRAN" See other formats DUDLEY SliTOX LIBRABY NAVAL POSTGRADUATE SCHOOL MONTEkE-Y C AiLIFORNI A NAVAL POSTGRADUATE SCHOOL Monterey, California THESIS A MODAL ANALYSIS OF THE VIOLIN USING MSC/NASTRAN AND PATRAN by George A.

Knott March Thesis Advisor:. The MSC/NASTRAN finite element computer program and a Cray XMP computer were used to study the modal characteristics of a violin with the Stradivari shape. The violin geometry was modeled using an arcs of circles scheme with PATRAN, a finite element A modal analysis of the violin using MSC/NASTRAN and PATRAN book pre/postprocessor program.

The violin was modeled in-vacu and with free boundary Pages: The msc/nastran finite element computer program was used to study the modal characteristics of a violin with the Stradivari shape.

The violin geometry was modeled using an arcs of circles scheme with patran, a finite element graphics pre/postprocessorback, sound post, bassbar, neck, bridge, tail-piece, strings, rib linings, end and corner blocks are the components of the by: 9. NAS Dynamic Analysis.

Modal Analysis of a Flat Plate: Produce a MSC/NASTRAN input file and submit for analysis to find the first five natural frequencies and mode shapes.

Modal Analysis of a Flat Plate Using Static Reduction: Reduce the dynamic math model in the previous exercise to one with fewer degrees of freedom and find the first five. Run an Advanced FEA nonlinear static analysis in order to see the behavior of the plate prior to post-buckling.

Shock Analysis of a 3-Story Structure: Create a model of a 3-story building using MSC/PATRAN. Perform a response spectrum analysis and compare results to hand solution.

N Frequency Response Example Using A Seismic Mass Following is an example of a general N frequency response analysis run using a large (seismic) mass. This information is to be used in conjunction with the examples for random and sine vibration analysis runs.

A Strategy for Integrating a Large Finite Element Model Using Msc Nastran/Patran: X Lessons Learned by Nasa, National Aeronautics And Space Adm and a great selection of related books, art and collectibles available now at Using Msc/Nastran: Statics and Dynamics by Arturo O.

Cifuentes (Author) out of 5 stars 1 rating. ISBN ISBN Why is ISBN important. ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book. Cited by: 1. This book is one in a series of user’s guides describing the use of MSC Nastran.

The first book in the series, Getting Started with MSC Nastran User’s Guide, is intended for those readers who are unfamiliar with the finite element method, those who have never run MSC Nastran, or those who are interested in a general overview of MSC Nastran’s capabilities.

A cubic fluid volume was discretized with three different meshes for analysis by MSC/NASTRAN. One model was constructed using linear HEX8 elements and nodes.

The second model used quadratic elements and nodes. The third model was discretized with quadratic HEX20 elements and nodes. The fluid in each of.

Tutorials are referenced from page of the document: Patran Reference Manual Part 6: Results Post Processing. out of 5 stars MSC/NASTRAN Advanced Dynamic Analysis User's Guide. Reviewed in the United States on October 8, hi this book for who have taken course in fea and who know basics of the dynamics good for who aspire job in the field of fea.

Read more. Helpful. Comment Report abuse.3/5(1). Dynamic Analysis with Patran & MSC Nastran 1. Program overview Title: Dynamic analysis with Patran & MSC Nastran – online course.

Director: Professor Juan José Benito Muñoz. - 5b Modal analysis of a tuning fork using coarse mesh with Tet 10 elements. Work Flow / Typical Analysis NASTRAN SOL ADAMS •Nonlinear static step: To get to the deformed configuration •Modal step: NASTRAN transforms Nodal DOFs to CB Modal Coords •Export MNF •Import MNF into the MBS to represent the Flexbody: •Define the loads and Joints on the FlexbodyFile Size: KB.

N Random Vibration Example. Following is an example of an n v. random vibration analysis run. All the NASTRAN cards necessary to perform a random run are described here. Comments follow the card (or cards) being described. The random-specific cards are in bold.

The model is a simple cantilever beam with 48 elements and. The MSC Nastran Dynamics User’s Guide is a guide to the proper use of MSC Nastran for solving various dynamic analysis problems. This guide serves as both an introduction to dynamic analysis for the new user and a reference for the experienced user.

It is known today that the tone and playing qualities of a violin are based on unique combinations of an air subsystem (the cavity modes) and a mechanical subsystem (the body modes). Much of the research conducted over the past 20 years on the mechanisms underlying the tonal effects of frequency relationships between two strong cavity modes and three important body modes of the violin below 1.

from book Topics in Modal Analysis I, locations for the vibro-acoustic transfer function analysis of the Titian Stradivari violin A modal analysis of the violin using MSC/Nastran and Patran.

subjects through a number of exercises that must be completed using Patran & MSC Nastran. The exercises represent a review of the concepts introduced in the subjects taken till now, as well as the orderly use of Patran & MSC Nastran.

These exercises will be delivered to the tutor in order to get feedback and Size: KB. Bissinger G The influence of the soundpost on the mechanical motions of the violin Proc.

12th Int. Modal Analysis Conf. vol 1 and 2 pp Knott G A A modal analysis of the violin using MSC/Nastran and Patran Msc Thesis Naval Postgraduate Jansson E V and Niewczyk B K On the acoustics of the violin: bridge hill or body hill. JCited by:. Research Papers in Violin Acoustics: - Editor Carleen Maley Hutchins Working example-the violin bow, Proceedings of the 11th International Modal Analysis Conference, pp.

PAPER Pickering, N. C. (b). A modal analysis of the violin using MSC/NASTRAN and PATRAN, thesis, Naval Postgraduate School, Monterey.MSC/NASTRAN Based Component Mode Synthesis Analysis Without The Use of DMAPs by Tarun Ghosh Rockwell International Corporation Canoga Park, California Abstract Component mode synthesis method of analyzing large structures is a very powerful and efficient tool available in MSC/NASTRAN.

For many years the method based on MSC/NASTRAN hasFile Size: 37KB.MSC Nastran Nonlinear for Composites Analysis. NEWPORT BEACH, CA--(Business Wire – March 7, ) – MSC Software Corporation today announced that the R&D department at Riba Composites introduced MSC Nastran Nonlinear (Sol) and MSC Apex to broaden the range of analysis capabilities for composite components.