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EFFECT OF MISSING PATH AND FORCE ON VIBRATION RESPONSE PREDICTION

EKSIK PATİKA VE KUVVETİN TİTREŞİM CEVABI ÖNGÖRÜSÜNE ETKİSİ

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Abstract (2. Language): 
Accurate prediction of the vibration responses is an essential requirement during the design and optimization stages of mechanical structures. For this reason, a vibration response prediction (VRP) methodology, based on a set of frequency response functions (FRF) and operational responses, is established. In this methodology, defining the sources and transmission paths of the structure accurately is critical. Since it is based on the FRFs of the system, unconsidered sources and/or missing path result in inaccurate predictions. The goal of this paper is to present the effect of a missing path on the prediction results. In accordance with this purpose, a three degree-of-freedom system will be investigated analytically and VRP methodology will be applied along with the calculated receptances and displacements of the system.
Abstract (Original Language): 
Mekanik yapılarınd dizayn ve optimizasyon aşamalarında yapı üzerindeki titreşimi doğru olarak öngörülmesi önemli bir ihityaçtır Bu nedenle, operasyonel cevap ve frekans cevap fonknsiyonuna (FCF) bağlı olan bir titreşim cevabı öngörüsü (TCÖ) metodu kullanılmaktadır. Bu metotta,titreşim kaynaklarını ve iletim patikalarını doğru olarak tanımlamak çok kiritiktir. Metot sistemin FCF’lerine bağlı olduğundan, hesaba katılmayan kaynak ve/veya eksik patikalar doğru olmayan öngörülere neden olacaktır. Bu makalenin amacı eksik patikanın öngörü son uçlarına olan etkisini sunmaktır. Bu amaç doğrultusunda üç sebrstlik dereceli bir system analitik olarak incelenecek ve TCÖ metodu hesaplanan deplasman ve FCF’ler ileuygulanacaktır.

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