Abstract
Vibration analysis of the internal combustion (IC) engine components is extremely helpful in optimizing the design of these components and has direct bearing on the engine life. This paper presents an experimental and numerical modal analysis of IC engine camshaft. The experimental modal analysis of camshaft excited using impact hammer is performed with the help of a laser vibrometer. The signals from the experiments are obtained in the time domain and are later converted into the frequency domain using fast Fourier transformation (FFT) with the help of MATLAB program. The numerical modal analysis is performed using finite element modeling (FEM) software ANSYS Workbench 14.5. The purpose of this experiment is to validate the finite element model of camshaft using the experimental data, so that the same FEM model of camshaft can be used with confidence for more complex boundary conditions or real operating conditions. To achieve this aim, the natural frequencies and mode shapes of camshaft obtained through experiment and FEM are compared. The methodology presented and the results are useful in optimizing the design of camshaft to be used in IC engine.
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Sharma, J.K., Parashar, S.K. (2019). Experimental Investigation Using Laser Vibrometer and Finite Element Modeling for Modal Analysis of Camshaft. In: Ray, K., Sharan, S., Rawat, S., Jain, S., Srivastava, S., Bandyopadhyay, A. (eds) Engineering Vibration, Communication and Information Processing. Lecture Notes in Electrical Engineering, vol 478. Springer, Singapore. https://doi.org/10.1007/978-981-13-1642-5_11
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DOI: https://doi.org/10.1007/978-981-13-1642-5_11
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