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About us

At Damen, much effort is put into designing silent and comfortable ships. Therefore, sound level predictions are made to judge the feasibility of each design. This of course asks for accurate prediction methods.

Aspects covered in these prediction methods are:

The prediction of structure borne as well as airborne excitation levels of diesel engines, gearboxes, generator sets, propellers, etc.
Predicting the dynamic response of the ship structure, such as the input mobility of the engine foundation and the transfer of vibrations through the ship structure.
Prediction of attenuations due to acoustic countermeasures, such as resilient mountings, floating floors, visco-elastic damping, additional absorption, etc.
Prediction of radiation of lining and absorption of the sound levels in the cabins.
Prediction methods always need validation by means of measurements. For this purpose, use is made of advanced measurement equipment.

Within the RD&I department, the research team Sound & Vibrations is dedicated to the development of these tools. One of the team members of this team will act as daily supervisor.

The role

During Damen sea trials, extensive datasets are collected (audio, accelerations, operational parameters). Analyzing these data is labor-intensive and highly dependent on expert knowledge. By using automatization, source identification and characterization can be (partly) automated. This leads to faster interpretation of noise measurements and objective detection of critical events (cavitation, resonances, out-of-tolerance behavior). All in all, better linkage between measurements, modeling (SEA/FEM), and design parameters.

Your work as an intern is to develop the required methodology to analyze the time domain data and demonstrate the method in a tool.

Project Objective
Develop a method and build a tool that analyzes an audio recording from a sea trial and automatically:

Identifies acoustic sources (diesel engine, electric motor, propeller, cavitation, turbulence, pump/HVAC, etc.).
Determines source characteristics (rotational speed/RPM, number of blades/cylinders, etc.).
Quantifies the acoustic contribution per source (level, spectrum, and derived metrics).
Performs source separation (acoustic representation of the contribution of each detected source).

The final result is a prototype that supports acoustic experts in analysis, troubleshooting, and design validation.

Key accountabilities
As an intern, you will:

Create a model that classifies acoustic sources in an time domain recording of pressures, accelerations, etc.
Define source-specific output such as RPM, number of blades, and number of cylinders
Create a prototype application (Python/MATLAB)
Deliver documentation and evaluation based on real Damen sea trial data

Skills & Experience

This assignment is intended for a University Master student Naval Architecture / Maritime Technology / Mechanical Engineering / Applied Physics with:

Affinity with acoustics such as spectrograms and harmonic analysis
Familiarity with signal processing and Machine Learning frameworks
Analytical oriented mind set
Good programming/scripting skills in Matlab/Python
Mastery of the English language (spoken and written)

What we offer

Academic level mentoring throughout the internship

Internship compensation and travel allowance in line with company policy

A project with direct relevance to multiple business functions and future digital products

Potential for internal rollout, and possibly a publication or conference contribution depending on results

Other

Are you ready to sail into your new adventure at Damen? Don’t hesitate, send us your motivation letter and resume here.

Due to housing issues we cannot accept international students that do not have accommodation in the Netherlands yet.

Recruiter:

Liselotte van Veenendaal

Email:

liselotte.van.veenendaal@damen.com

Please apply through the Apply Button. Due to GDPR reasons we cannot accept applications by email.

Working at Damen: building the future of the maritime world
Do you want to work in the maritime sector and contribute to meaningful work? At Damen, you work together on ships and solutions that matter, built to last.

About Damen as an employer
Damen is an international family-owned company with strong roots in the Netherlands. With more than 12,000 colleagues worldwide, we have been building all kinds of ships and maritime solutions for generations, from workboats to naval vessels and innovative solutions for offshore and energy. We take a long-term view and work together on solutions that not only work today, but also for future generations.

Building craftsmanship together
You can see this in how we work. We keep communication simple and direct, and you have the space to take ownership. Your ideas are taken seriously, and craftsmanship is at the center of what we do. Whether you work in engineering, shipbuilding, offshore, or in the office, you help build solutions where quality and pride are key.

Working on solutions that last
The maritime sector is changing fast. That is why Damen invests in innovation and sustainability. You work on projects that really matter, such as:

sustainable ship designs and alternative fuels
smart and digital solutions for ships and processes
projects that support safety, logistics, and energy supply

What you build has real impact and is made to last.

Room to grow
At Damen, you get the space to grow and take initiative. Whether you are just starting or already experienced, you work in an environment where people share knowledge and learn from each other. You grow in your role and take on more responsibility.

You can count on:

many opportunities to learn and develop
projects with an international focus
an environment where your ideas are taken seriously

What Damen offers you
Working at Damen means working on projects that matter, in an environment where you are part of something bigger.

You can count on:

a stable company with international impact
a down-to-earth and friendly working culture
challenging work in the maritime sector
an organization that looks ahead, for you and for the projects you work on

Why Damen?
Because you work on ships and solutions you can be proud of, with a team that supports each other and builds results that last.

Ready to come on board?
Discover your opportunities and experience what it is like to work at Damen.

Graduation: Automation of Sound level predictions