OPTIMASI NUMERIK STRUKTUR GONG UNTUK MEMPEROLEH RASIO FREKUENSI PRIBADI TERTENTU

Authors

  • I Wayan Suweca
  • Eko Cahyono

Abstract

The sound quality of a gong is influenced by its dynamic characteristics (its structural eigenmode). By controlling natural frequency ratio of the gong to a certain value, we can expect to obtain the optimum gong design. The subject of the present research is to establish an analysis of the application of design optimization in obtaining an optimum gong design. The optimum gong is defined as a gong that has a certain natural frequency ratio. The natural frequency ratio adopted in this reseach is based on those of English bell [1]. The Sequential Unconstrained Minimization Techniques from Ansys 5.4 is used to perform the optimization process. The design optimization method has been successfully applied on the optimization of the gong. The results obtained from the three case studies show that the most sensitive part of the gong is at its around free end. This indicates that in manufacturing gong, this part must be carefully treated.

References

P.J.M. Roozen Kroon, Structural Optimization of

Bells, Technische Universiteit Eindhoven, Den

Haag, Ph.D Theses, 1992.

Made Dharma Harthana, Pengaruh Struktur Mikro

Terhadap Frekuensi Fribadi Bilah Gamelan, Tugas

Akhir, Teknik Mesin, ITB, 1982.

Wasisto Suryodiningrat, Tone measurement of

Outstanding Javanese Gamelans in Yogyakarta and

Surakarta, Gajah Mada University Press, 1993.

Budi Priyanto, Kaji Numerik dan Eksperimental

Parameter Dinamik Gong Bali, Tugas Akhir,

Departemen Teknik Mesin, ITB, 2001.

Eko Cahyono, Optimasi Struktur Gong untuk

Mendapatkan Karakteristik Spektrum Frekuensi

yang Optimum, Tugas Akhir, Departemen Teknik

Mesin, ITB, 2002.

Garret N Vanderplaats, Numerical Optimization

Techniques for Engineering Design, McGraw-Hill,

New York, 1984.

Ansys Analysis Guides, Ansys 5.4

Ansys Elements Reference, Ansys 5.4

Downloads

Published

2017-05-15

How to Cite

Suweca, I. W., & Cahyono, E. (2017). OPTIMASI NUMERIK STRUKTUR GONG UNTUK MEMPEROLEH RASIO FREKUENSI PRIBADI TERTENTU. Mesin, 21(2), 34-43. Retrieved from https://journals.itb.ac.id/index.php/jtms/article/view/4961

Issue

Section

Articles

Most read articles by the same author(s)