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Soemantri B, Satryo
Mesin
Mechanical Engineering

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OPTIMASI STRUKTUR UNTUK MENDAPATKAN FREKUENSI ALAMI YANG TERPISAHKAN SECARA OPTIMAL Soemantri B, Satryo; Suweca, I Wayan; Sujatmika, Endra
Mesin Vol 13, No 3 (1998)
Publisher : Mesin

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Abstract

In obtaining the dynamic response of a dynamic system, its uncouple modal equation of movement simplifies the usage of superposition modal method. This paper proposes a strategy to obtain the uncouple modal equation based an hypotheses of Basile : “Although the presence of modal-damping-couple, the modal equations of movement are dynamically uncoupled for a structure having small damping coefficient if its natural frequencies are well-separated"(1). This hypotheses is justified by several authors, i. e. by Hasselman(1). Thus, by separating the natural frequencyof a dynamic system using Hasselman criteria, it is expected that the modal equation of movement will become uncoupled. The separation of the natural fiequency is done by optimization method which is conducted by using the finite element software ANSYS.
Co-Authors I Wayan Suweca Sujatmika, Endra