Accession Number : ADA180800

Title :   A Modal Analysis of the Violin Using MSC/NASTRAN and PATRAN.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Knott,George A.

Report Date : MAR 1987

Pagination or Media Count : 126

Abstract : 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.

Descriptors :   *COMPUTER AIDED DESIGN, BOUNDARIES, BOXES, COMPUTER PROGRAMS, FINITE ELEMENT ANALYSIS, GRAPHICS, LININGS, MODELS, PLATES, RIBS, MUSIC, THESES, VIBRATION, HIGH LEVEL LANGUAGES, COMPUTERIZED SIMULATION

Subject Categories : Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE