ANSYS varification manual 9

# 075 sec analysis assumptions and modeling notes the

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: nd Reinhold Co., New York, NY, 1979, pg. 90, tab. 7-1. Analysis Type(s): Static Analysis (ANTYPE = 0) Mode-frequency Analysis (ANTYPE = 2) Mode Superposition Harmonic Response Analysis (ANTYPE = 3) Element Type(s): 2-D Spar (or Truss) Elements (LINK1) Input Listing: vm76.dat Test Case A uniform stainless steel guitar string of length and diameter d is stretched between two rigid supports by a tensioning force F1, which is required to tune the string to the E note of a C scale. The string is then struck near the quarter point with a force F2. Determine the fundamental frequency, f1. Also, show that only the odd-numbered frequencies produce a response at the midpoint of the string for this excitation. Figure 76.1 Guitar String Problem Sketch Material Properties E = 190 x 109 Pa ρ = 7920 kg/m3 Geometric Properties = 710 mm c = 165 mm d = 0.254 mm Loading F1 = 84 N F2 = 1 N Analysis Assumptions and Modeling Notes Enough elements are selected so that the model can be used to adequately charact...
View Full Document

## This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.

Ask a homework question - tutors are online