Experimental and Analytical Modal Analysis of a Crankshaft

Abstract

The paper presents the experimental and analytical modal analysis of a crankshaft. The effective material and geometrical properties are measured, and the dynamic behavior is investigated through impact testing. The three-dimensional finite element models are constructed and an analytical modal analysis is thenperformed to generate natural frequencies and mode shapes in the three-orthogonal directions. The finite element modelagrees well with the experimental tests and can serve as a baseline model of the crankshaft.