Numerical modeling of normal modes of body of a setar
Author(s):
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
In this work, eigen modes and eigen frequencies of the body (sound board and sound box) of the setar, a persian stringed musical instrument, are studied. Eigen modes of the sound board and the whole body, neglecting the holes, are calculated independently and analyzed comparatively. This scheme of separate modal analyses for different parts of the setar will lead to the understanding of their individual roles in the overall output sound. In categorizing and assessment of sound quality of musical instruments, the study of characteristics of frequency response function (ERF) is important. In case of stringed musical instruments like setar, of the defining parameters are the first peak of FRF and its location. This first peak usually coincides with first air eigen frequency which in the present research occurs at about 377 Hz. Thus, all the other eigen modes like 588 Hz and 740 Hz, construct the rest of the FRF. Also, the effects of such as sound board thickness, wood material properties shape of sound box and other structural features of setar on two value of eigon frequencies can assessed. Furthermore, analysis of the aero-acoustic pressure contours and the eigen modes of the setar structure (sound board and box) and air allows the nature (air, structure or coupled air-structure) of a acoustic mode to be determined.
Keywords:
Language:
Persian
Published:
Journal of Acoustical Engineering Society of Iran, Volume:5 Issue: 2, 2017
Pages:
43 to 53
https://www.magiran.com/p1902070
سامانه نویسندگان
از نویسنده(گان) این مقاله دعوت میکنیم در سایت ثبتنام کرده و این مقاله را به فهرست مقالات رزومه خود پیوست کنند.
راهنما
مقالات دیگری از این نویسنده (گان)
-
A Unified Transformation Framework for Studying Various Situations of Vertical/Oblique Drop Impact on Horizontal/Inclined Stationary/Moving Flat Surfaces
E. Azadi, M. Taeibi Rahni *
Journal Of Applied Fluid Mechanics, Nov 2023 -
The effect of dimensionless numbers on the resonance frequency of a pendent drop
Shahram Ghorbanifar *, Mohammad Taeibi, Davar Nourmohammadi
Journal of Vibration and Sound,