Piston Pimi Zorlanmış Frekans Yanıt Analizi

Year 2022, , 373 - 383, 30.11.2022

Ekrem Gülsevinçler

https://doi.org/10.31590/ejosat.1179755

Abstract

Bu çalışmada, piston pimi üzerinde zorlanmış frekans yanıt analizi uygulanmıştır. Piston pimindeki titreşimi analiz etmek için Ansys Mechanical 19.2 programı kullanılmıştır. Modal analiz sonuçlarına dayalı olan sonlu eleman analizi tamamlandığında, modelin doğal frekansları ilk 12 mod için 38721 ile 79346 Hertz arasında değişmektedir. Modal analiz sonuçlarına göre, piston pimi çalışma sırasında rezonansa maruz kalmayacaktır. Bu nedenle, modal analizde elde edilen ilk 12 modun doğal frekanslarıyla çakışabilecek rezonans frekanslarını tespit etmek için modal analizi içeren bir frekans taraması gereklidir. Sonuç olarak, 30000-80000 Hz aralığında 1000 Hz'lik adımlarla 50 aralıklı mod süperpozisyon yöntemi kullanılarak harmonik analizi çözdürülmüştür. Rezonans frekanslarını azaltmak için altı farklı sabit sönüm oranı kullanılarak harmonik analizler tekrarlanmış ve sonuçlar karşılaştırılmıştır.

Keywords

Piston Pimi, Zorlanmış Frekans Yanıt Analizi, Harmonik Analiz, Rezonans

Forced Frequency Response Analysis of a Gudgeon Pin

Abstract

In this study, forced frequency response analysis was applied on the gudgeon pin. Ansys Mechanical 19.2 program was used to analyze the vibration on the gudgeon pin. Once completed in the finite element analysis, a note from the modal results, the model's natural frequencies range from 38721 to 79346 Hertz for the first 12 modes. According to the modal analysis results, the gudgeon pin will not be subjected to resonance during working. Therefore, a frequency scan including modal analysis is required to detect resonant frequencies that may coincide with the natural frequencies of the first 12 modes obtained in modal analysis. Consequently, harmonic analysis has been solved using the mode superposition method with 50 intervals with 1000 Hz steps in the range of 30000-80000 Hz. To dampen the resonant frequencies, harmonic analyzes were repeated using six different constant damping ratios, and the results were compared.

Keywords

Gudgeon Pin, Forced Frequency Response Analysis, Harmonic Analysis, Resonance

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