2014•Applied Mechanics and MaterialsOpen access

Finite Element Modal Analysis of S385 Diesel Engine Block

Bo Liu, Hui Lue Jiang

Abstract

Free and constraint modal finite element analysis were conducted on S385 diesel engine block using FEA according to its structural characteristics. The natural frequencies and corresponding vibration modes of the first fifteen steps of each condition of the block were worked out using Lanczos method. By the analysis of vibration modes, the weak spots of the block were found and corresponding improved schemes were brought forward. The analysis results supplied a theoretical support to improve the structural design and the dynamic response analysis of the block.

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Available abstract

Key concepts: Lanczos resampling, Finite element method, Modal analysis, Block (permutation group theory), Vibration, Structural engineering, Modal, Cylinder block