Stephan Schönfeld Email & Phone Number

Dresden, Sachsen, Deutschland

Application Engieer for Klippel Controlled Sound - KCSSupporting our customers with integration of Klippels loudspeaker control technology into products. Measurements and design advice on active loudspeaker systems, Educating customers and global support organization. Improving product and processes. Developing strategies for growth of KCS business.

Dresden, Sachsen, Deutschland

Developing software modules of a measurement system with focus on analysis of modal vibration behaviour of loudspeaker diaphragms.

Dresden, Sachsen, Deutschland

Göteborg, Västra Götalands Län, Schweden

Global responsibility for the vehicle feature "interior noise and driveline-borne vibrations". I was in charge to secure that the buses we developed and built were silent and pleasant enough in operation to fulfill the requirements of the market. Together with our product planning team I determined the required feature-level, formulated measurable targets, evaluated these against the competition, developed a vision for the development of the feature in the future and secured that it was introduced in new development projects. I then directed the work on interior noise and vibrations inside development projects and made sure the noise requirements were introduced and followed. For this I broke down the targets from complete vehicle level to contributions of separate vehicle-systems (e. g. driveline, compressed air-system etc) and made sure that all concerned system-owners designed in appropriate ways so that the targets could be met. This included regular reviews of the design and providing advice on good design for NVH (noise, vibration, harshness). I then defined tests on system level and on the complete vehicle, and instructed the test engineers to perform these according to specification. Together with them, I performed measurements and customer clinics. I provided guidance in cases of quality issues related to my feature and supported with measurements and simulation for troubleshooting. I developed prognosis methods and supervised advanced engineering projects and thesis workers. From 2016 I served as technology specialist for NVH.My work touched virtually every area of acoustics and I was lucky to contribute to major projects such as the global Eu6 makeover, the 9800 coach series and the development of Volvos first plugin-electric and fully electric buses as part of great engineering teams.I have worked with NVH at the R&D Center in Gothenburg continuously since 2010 through technical consulting company ÅF and was directly employed by Volvo from 06/2015.

For the technical consulting company ÅF Infrastructure (since 2019 "AFRY), I worked with multiple consulting assignments in the field of acoustics, sound and vibrations. My focus was directed towards product development with special focus on sustainable technology for transportation (buses, railway, ships) and energy (windcraft).

Master Of Science - Ms, Sound And Vibration, A

Activities and Societies: Chalmers Sångkör International Masters Programm for Sound and Vibration - Technical Acoustics (1 and 2), Room.

Master Of Fine Arts - Mfa, Choral Conducting (Magister)

Mechanical Engineering