Rotating Machinery Mechanical Engineer
Boulder, Co
• Construct and analyze comprehensive RomaxDesigner/Wind models, mathematical representations of drivetrain physical systems for wind, aerospace, automotive, industrial, and mining industries. Static, dynamic, and NVH model simulations used for gear, bearing, and shaft analysis in root cause studies, re-engineering, and drivetrain design.• Involvement in all aspects of the project life cycle for engineering consultancy. Aspects of this include review of customer drivetrain engineering shortcomings, propose solution methods, execution of technical engineering, management of project delivery, and client liaison.• NVH analysis of nonlinear drivetrain models with gears and rolling element bearings, including modal analysis, gear transmission error, gear whine, modal contribution, operating deflection shapes, system Campbell diagrams, resonant modes, frequency response functions and correlation studies.• Robust gear design for improved static and NVH performance. Attenuate noise levels from gearbox housing vibration caused by gear whine across a range of operational conditions. Improve gear contact stress, edge/tip load ratios, and bending stress for increased durability. Monte Carlo design of experiments and genetic algorithm optimization tools used in the design space.• CAD and product technical drawings to drafting standards for engineering of utility class wind turbine gearbox, including gear design and tolerance stack analysis.• Finite element mesh generation, analysis, and post-processing of complex structures, including gearbox housings and planetary carriers. Finite element representations also used in integration with RomaxDesigner/Wind for more complete whole-system analysis of loading, misalignments, and frequency response.• Support of field activities for utility class wind turbine gearbox uptower inspections, teardowns, and root cause analysis.
