Preprint Article Version 1 This version is not peer-reviewed

Multibody Simulation for the Vibration Analysis of a Turbocharged Diesel Engine

Version 1 : Received: 15 May 2018 / Approved: 16 May 2018 / Online: 16 May 2018 (07:36:50 CEST)

How to cite: Armentani, E.; Caputo, F.; Esposito, L.; Citarella, R. Multibody Simulation for the Vibration Analysis of a Turbocharged Diesel Engine. Preprints 2018, 2018050223 (doi: 10.20944/preprints201805.0223.v1). Armentani, E.; Caputo, F.; Esposito, L.; Citarella, R. Multibody Simulation for the Vibration Analysis of a Turbocharged Diesel Engine. Preprints 2018, 2018050223 (doi: 10.20944/preprints201805.0223.v1).

Abstract

In this paper, a multibody calculation methodology has been applied to the vibration analysis of a 4-cylinder, 4-stroke, turbocharged diesel engine, with a simulation driven study of the angular speed variation of a crankshaft under consideration of different modeling assumptions. Moreover, time dependent simulation results, evaluated at the engine supports, are condensed to a vibration index and compared with experimental results, obtaining satisfactory outcomes. The modal analysis also considers the damping aspects and has been conducted using a multibody model created with the software AVL/EXCITE. The influence of crankshaft torsional frequencies on the rotational speed behavior has been evaluated in order to reduce the vibration phenomena.

Subject Areas

vibration analysis; FEM; multibody

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