Experience

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  hofer powertrain

  • Eschen, Liechtenstein

  • Development engineer

    • Oct 2021 - Present
    • Eschen, Liechtenstein

    My main responsibilities: * Development of high-speed electrical drive systems for automotive applications * Mechanical integrity assessment of electrical motor parts by using FEA (ANSYS)

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  RHIVA AG

  • Lichtenschtein

  • Development Engineer

    • Jul 2020 - Present
    • Lichtenschtein

    My main responsibilities:● Development of a new high-speed electrical drive system for an automotive application● Mechanical integrity assessment of an electrical motor rotor by using FEA (ANSYS) ● Motor drive train dynamics analyses with FEM and test data analyses● Creation of technical reports for internal customers and measurement instructions for suppliersMy key achievements:● Rotor passed functional safety test according to IEC 60034-1● Rotor passed design safety test● Motor vibration level meets requirements of ISO 10816

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  thyssenkrupp Presta AG

  • Liechtenschtein

  • Development Engineer

    • Feb 2017 - Jun 2020
    • Liechtenschtein

    My main responsibilities:● Support of an electrical drive system development for automotive application● Mechanical integrity assessment using static and dynamic analyses, representingmanufacturing, operating and fault conditions (by using analytical and CAE tools)● Rotor dynamics analyses by using CAE tools● Fatigue analyses by using nCode and CAE● Definition of test programs and interpretation of measurement results● Creation of technical reports, measurement instructions and interpretation of measurement results● Coaching and mentoring colleagues in numerical simulations and assessment procedures

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  General Electric Power R&D (former Alstom)

  • Birr, Switzerland

  • Research Development Engineer

    • Nov 2013 - Feb 2017
    • Birr, Switzerland

    Responsibilities:● Development and optimization of powerful electrical generators (500-800MW) for the power market● Mechanical integrity assessment of the electrical generator stator winding using static and dynamic analyses (ANSYS), representing operating and fault conditions ● Experimental modal testing (ME'scopeVES) and interpretation of measurement results● Rotor dynamics analyses with custom-built tools and test data analyses● Member of interdisciplinary (8D) root cause analysis teams focused on the understanding of failures and finding solutions preventing similar failures in the future● Creation of technical reports and measurement instructions for internal customers● Coaching and mentoring colleagues in numerical simulations and assessment procedures Achievements:● In close collaboration with design team optimized stator end winding support system for two generator NPI (New Product Introduction) programs. Which ensures minimum running vibration level for Customers and allowed NPI programs passing detailed design review according to schedule● Proposed and implemented a new method of modal test data post-processing, which allows avoiding subjectivity aspect in the mode identification process. This method is especially useful in case when several mode shapes have the same frequency

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  GE Power & Water

  • United States
  • Electric Power Generation
  • 700 & Above Employee

  • Senior Engineer/Technologist

    • Oct 2010 - May 2013

    Responsibilities:● Development and optimization of powerful electrical generators (100-500MW) for the power market● Definition of program tasks and scope, meeting cost and quality requirements. Definition of design constraints and trade-off studies to assure that engineering design intent is achieved● Technical leadership of a cross-functional design team including Electrical, Mechanical and Heat Transfer/Ventilation engineers from different countries● Generator Design and Structural Analyses (ANSYS)● Creation of technical reports and measurement instructions for internal customers● Coaching and mentoring colleagues in numerical simulations and assessment procedures Achievements:● Medium hydrogen-cooled generator for Structured Product Line - did armature winding design. The chief consulting engineer concluded the design review with the remark: “This work sets a new standard in terms of detalization level”● Large air-cooled generator rotor. Analysis of the electrical, mechanical and heat transfer design constraints allowed proposing a design concept that meets all technical requirements. The project met time and budget targets● Identified stator end winding resonance issue for a part of the generator fleet, demonstrated ways to resolve it● 3 Patent applications in generator design and 2 applications rated as trade secrets

  • Lead Engineer/Technologist

    • Dec 2001 - Oct 2010

    Responsibilities:● Generator Design and Structural Analyses● 3D finite element modeling (ANSYS), stress & thermal analyses, assemblies with contact, material non-linearity and composites, high- and low-cycle fatigue analyses, fretting, natural frequencies assessment and forced response analyses. ● Tolerance analysis, using Cristal Ball.● Interpretation of the results of experimental modal analyses, factory testing and rotor balance bunker tests ● Creation of technical reports and measurement instructions for internal customersAchievements:● Test rig development for General Electric Generator Advanced Design Laboratory. I selected the concept and dimensions for this non-standard product. The project met time and budget targets. The successful test program resulted in a $1.6M cost reduction for liquid-cooled stator rewinds and enabled $100M nuclear uprates. This project became a “Project of the Year”● High-speed rotor with permanent magnets. Did conceptual rotor design for 2 concepts (with carbon-fiber sleeve and with Inconel sleeve). To find an optimal concept, set up and solved a system of differential equations, using MathCad. The rotor was successfully magnetized and balanced ● Did conceptual design for Laminated Rotor Project. By testing a sub-scale prototype, demonstrated the technical feasibility of the project

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  SverdlovElectroRemont

  • Ekaterinburg

  • Diagnostics engineer

    • Dec 1995 - Dec 2001
    • Ekaterinburg

    Responsibilities:● Technical condition assessment of electrical machines (turbo-generators, power transformers, pumps and electrical motors)● Visual inspection, in-situ vibration measurements, signal post-processing (MatLab, MathCad) and statistical analyses● Experimental modal analysis of a generator stator sub-systemsAchievements:● Programming of an “Expert” system for technical condition assessment of generators based on Visual Basic and Microsoft Access. This system was in service at least 10 years after I left the company ● 4 printed works (all in Russian) on generator stator vibration diagnostic