Senior Rotordynamics Engineer
Astro Mechanica•San Francisco, CA
•Onsite
About The Position
Astro Mechanica is looking for a Senior Rotordynamics Engineer with the knowledge and skill to refine the development of our terrestrial and aviation turbomachinery through your understanding of the detailed physical processes that happen within them. Your experience may be rooted in ground-power, aviation, or space-based applications. You understand the physical behavior of rotating systems as deeply on paper as you do at the test stand, and you’ve built the analytical models to prove it.
Requirements
- 5+ years in turbomachinery design with demonstrated rotordynamic analysis and mechanical packaging ownership on real hardware
- Hands-on experience with rotordynamic modelling tools (DyRoBes or equivalent)
- Experience with blade and compressor geometry development using CFD, streamline curvature, and 1D meanline methods (StarCCM+, AxStream)
- Experience with test instrumentation and data reduction specifically for mechanical validation (vibration, whirl, and rotor response)
- Experience with propulsion cycle tools (GasTurb, NPSS) and how compressor mechanical behavior couples to cycle performance
- Proficient in CAD for rotating assemblies (Siemens NX) and multiphysics analysis
- Experience with scripting for analysis automation and post-processing (Python, MATLAB)
- Effective communicator capable of leading cross-functional design reviews and contributing to system architecture discussions
Responsibilities
- Lead rotordynamic analysis of turbomachinery systems, including critical speed prediction, stability margins, imbalance response, torsional analysis, modal analysis, and Campbell diagram development
- Bearing selection, preload definition, stiffness and damping trade studies, thermal management and lubrication system
- Define and execute test campaigns instrumented specifically for rotordynamic validation
- Develop and iterate computational models (StarCCM+, AxSTREAM) with rotordynamic constraints in mind
- Utilize propulsion cycle models (GasTurb, NPSS) to assess how compressor maps and mechanical behavior interact under dynamic loading conditions
- Define GD&T for rotating assemblies through tolerance analysis, considering the effects on rotor balance, seal clearances, and dynamic behavior
- Partner with manufacturing to ensure production of high-precision rotating components with balance grades, runout tolerances, and assembly sequence in mind
Benefits
- Comprehensive medical, dental, and vision insurance
- Flexible Spending Accounts (FSA)
- 401(k) program
- Transparent stock option plan
- Self-managed and flexible time-off policy
- PTO
- Paid holidays
- Sick time
- Flexible work environment
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
