|
Appendix E |
|
APPENDIX E MODE SHAPES
Appendix E.1: Top Plate Mode Shapes Appendix E.2: Back Plate Mode Shapes
Appendix E.1: Top Plate Mode Shapes
TABLE 11. Normal Modes Analysis Results for Top Plate
FIGURE 38. Top plate mode shapes for actual Martin D-28 folk guitar [9].
FIGURE 39. Top plate mode (0, 0) [9].
FIGURE 40. Top plate mode (0, 1) [9].
FIGURE 41. Top plate mode (1, 0) [9].
FIGURE 42. Top plate mode (0, 2) [9].
FIGURE 43. Top plate mode (1, 1) [9].
FIGURE 44. Top plate mode (0, 3) [9].
FIGURE 45. Top plate mode (2, 0) [9]. |
|
GuitarEngineer.com |
|
Front View of Vacuum System |
|
Technical information on classical and steel-string guitar research, design, manufacturing. |
|
Mode |
Frequency Test (Hz) |
Frequency FEM (Hz) |
∆ (%) |
|
(0, 0) |
163 |
162 |
-0.6% |
|
(0, 1) |
276 |
309 |
10.7% |
|
(1, 0) |
390 |
404 |
3.5% |
|
(0, 2) |
431 |
503 |
14.3% |
|
(1, 1) |
643 |
474 |
-35.7% |
|
(0, 3) |
733 |
649 |
-12.9% |
|
(2, 0) |
756 |
815 |
7.2% |