Thesis work: Influence of propeller pressure pulsations on hull vibrations and structure-borne noise

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I korthet

This thesis work at Volvo Penta in Göteborg, Sweden, focuses on investigating how propeller pressure pulsations affect hull vibrations and structure-borne noise. The student will conduct literature studies, FE modeling, and acoustic simulations to compare vibration contributions and potentially develop a simplified calculation method.

Ansvarsområden

Investigate how propeller pressure pulsations transfer into the boat and contribute to hull vibration and structure-borne noise.
Conduct a literature study on propeller pressure pulsations, hull vibration, and noise, including the added-mass effect.
Perform FE modeling of an example hull and map CFD pressure results onto the structure.
Compare the vibration contribution from pressure pulsations versus the gearbox path.
Develop a simplified method for accounting for the phenomenon, if feasible.
Perform acoustic simulation of the engine room.

Krav

Knowledge of solid and fluid mechanics
Knowledge of Finite element method
Knowledge of Structural dynamics and vibrations
Knowledge of Acoustics
Knowledge of Hydrodynamics
Master (30 ECTS points) level thesis
Fluent in Swedish or English

Önskade kvalifikationer

Preferred masters program: Applied Mechanics

Förmåner

Opportunity to shape sustainable transport and infrastructure solutions.
Work with next-gen technologies and collaborative teams.
Gain experience at a world-leading supplier of engines and power systems.
Access to CAE and NVH departments with simulation models and measurement capabilities.
Work at the Volvo Penta Marine Test Center.

Färdigheter

FEACFDVibration analysisAcousticsStructural dynamicsHydrodynamics

#propeller#pressure pulsations#hull vibrations#structure-borne noise#CAE#NVH#FEA#CFD#structural dynamics#acoustics#hydrodynamics#marine#engineering#thesis#student

Om Volvo Group

The Volvo Group is one of the world’s leading manufacturers of trucks, buses, construction equipment and marine and industrial engines. The Group also provides complete solutions for financing and service. The Volvo Group, with its headquarters in Gothenburg, employs about 100,000 people, has production facilities in 18 countries and sells its products in more than 190 markets.\n\n

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