David Österberg Email & Phone Number

Gothenburg, Se

Gothenburg, Västra Götaland County, Sweden

I head a small team responsible for the innovation pipeline for the SeaTwirl product portfolio. What the next generation SeaTwirl turbines look like. I also drive the development of several software tools that aid us in doing faster design iterations. I also continue my work as an active engineer doing design work on the current product portfolio.

Gothenburg, Vastra Gotaland County, Sweden

Developing state of the art offshore floating vertical axis wind turbines suitable for harsh offshore conditions.

Sweden

As product owner for the yaw system, I have the technical leadership of two scrum team of in total 15 engineers. I define and implement the technical strategy for the yaw system across platforms. I help defining the tasks that the teams work on, and I take active part in advising and review. I also take part in recruitment of new team members. When time allows I also take on technical tasks myself as a member of a scrum team. As the team is already distributed in three countries, and due to proven effectiveness in working from home, I was allowed to relocate from Denmark to my home country of Sweden. I now perform all my work from home. My corporate level is Specialist.

Aarhus N, Middle Jutland, Denmark

I am part of the technical management team in nacelle engineering department. My role covers the components of the nacelle front structure (baseframe and yaw system). As functional lead I make sure that state of the art engineering practices are employed in the design of the front structure. I am responsible for the quality of our design verification guidelines, our tools and the skills within the team. I initiate, scope, and lead projects in order to improve said tools and processes. I also initiate projects to develop new technologies. I also take a direct part in new turbine projects during the scoping phase, and later as a reviewer and advisor.

Aarhus, Denmark

I am part of the technical management team in nacelle engineering department. My role covers the components of the nacelle front structure (main shaft, main bearings, main bearing housing, baseframe as well as the primary bolts). As functional lead I make sure that state of the art engineering practices are employed in the design of the front structure. I am responsible for the quality of our design verification guidelines, our tools and the skills within the team. I initiate, scope, and lead projects in order to improve said tools and processes. I also initiate projects to develop new technologies. I also take a direct part in new turbine projects during the scoping phase, and later as a reviewer and advisor.

Århus Area, Denmark

I am currently responsible for the design of the yaw system in a major wind turbine project. Besides direct engineering design, my job also involves steady contact with suppliers, controlling the design by means of technical specifications and test specifications. I do structural verification. Either directly myself, or when possible, by delegation and review. The job also involves aligning with all stakeholders throughout the value chain. To do my job I use software such as ANSYS Structural, Excel, CREO, Python, IQ-FMEA.

Jönköping

I did dynamic and static stress analysis of a wide variety of complicated structures such as chainsaws, power cutters, ride on lawn mowers, brush cutters, road saws, concrete core drills etc. During my tenure at the CAE department I worked with a wide variety of problems and methodologies such as * Non-linear finite element analysis with contact and plasticity.* Frequency response analysis using superelements and multiple super-imposed load harmonics.* Fatigue life calculations using Rainflow counting and Miners rule.* Heat transfer and thermal stress analysis.* Multi-body dynamics analysis with flexible bodies.* Automatic parameter optimization of FEA-models to fit measurements. * Writing scripts in Python and Matlab to automate many tasks.* CAD model simplification and simple modeling tasks in CATIA.Software tools I used daily included NASTRAN, LS-DYNA, ADAMS, ANSA, Python, MATLAB, CATIA and Linux.

Huskvarna, Sweden

I started the business together with a friend and colleague as a hobby project. It has taught me the basics of business law, accounting and promotion. I also got to take on a few interesting engineering problems such as:• Coupled electromagnetic/heat-transfer simulation of prototype inductor for satellite applications.• Wave slamming calculations for a sailing vessel hull.• Stress analysis of an all carbon fibre trimaran sailing vessel.Software I use: CalculiX, FEMM, IPython, Gmsh, Salome, Rhino 3D

Uppsala, Sweden

Designed the aerodynamic features of a 200 kW vertical axis wind turbine at a newly started company. Designed the turbine rotor. Analyzed the structure using the finite element method. Took part in the testing and in the CE marking process for the wind turbine.* Responsible for the structural design of the rotor.* Prepared manufacturing drawings of the rotor and most of its parts.* Verified the safety of the design using the FEM-package SolidWorks Simulation.* Designed the manufacturing tools for the rotor parts.* Took active part in developing an improved quality assurance policy at the company.* Designed and analyzed many full scale mechanical load tests that were used to verify the safety of the machine.* I take part of the CE marking process for the 200 kW wind turbine.* Designed the aerodynamic features of a 200 kW vertical axis wind turbine.* Developed a 3D unsteady potential flow model of the wind turbine.* Implemented a model for generating realistic atmospheric turbulence for later use in checking the turbine structural response.Software tools I used daily include SolidWorks, SolidWorks Simulation, MATLAB, Linux, Python, Rhino 3D.