Rotor Dynamics
As part of our structural analysis capability, we offer full lateral and torsional rotor dynamics analysis, being capable of conducting both 1D and 2D analysis for rotors and drivetrains.
Customisable
We are able to conduct both 1D and 2D analysis, depending on rotor complexity and output requirements. This allows us to provide the most cost-effective analysis solution depending on our customers needs.
Full Assessment
We offer full lateral and torsional analysis against industry standards such as API 684. Whether this is simple modelling for concept level, or full transient analysis for detailed design, we’ve got you covered!
System Tuning
We can tune designs to optimise rotor dynamic response, using fast-iterative analysis to efficiently provide optimal solutions.
Our Capabilities
Modelling
- Simple Axisymmetric Rotors (1D)
- Complex Axisymmetric Rotors (2D)
- Rolling Element Bearings
- Journal Bearings
- Thrust Bearings
- Squeeze Film Dampers
- Liquid and Gas Seals
- Cross Coupling Effects
Lateral Analysis
- Undamped Critical Speed Analysis
- Eigenvalue Analysis and Campbell Diagrams
- Mode Shapes
- Bode Plots and Phase Diagrams
- Stability Analysis
- Orbit Plots
- Lifting Analysis (Gravity loading)
- Transients (Startup and Shutdown)
- Stress and Fatigue Analysis
Torsional Analysis
- Eigenvalue Analysis and Campbell Diagrams
- Mode Shapes
- Bode Plots and Phase Diagrams
- Transients (Startup and Shutdown)
- Stress and Fatigue Analysis
New Whittle Lab - Cambridge Uni
The new Whittle Laboratory at the University of Cambridge is an Integrated technology Accelerator for the development of zero-carbon aviation. We designed the new rotating test rig at the facility, capable of testing turbo-jet fans, compressors and turbines.
Concept Iterations
Designing the rig from scratch meant that several iterations of the high-speed rotor section were required to optimise rotor performance across the full rig running range. In-house tools allowed for rapid test iterations and optimisation studies, to map rotor dynamic performance.
Variable Test Configurations
As the rig is experimental, it will be use for a range of test cases. To account for this, rig limits were analysed for a range of test case configurations to determine rotor dynamic performance, and a limit envelope defined.
Rotor Dynamic Isolation
To decouple the response of the high-speed rotor section from the gearbox and motor, flexible couplings were incorporated into the design. These were tuned to ensure rotor dynamic modes and vibrations were not transmitted between driveline sections.
Driveline Analysis
Torsional analysis was conducted on the full driveline, working closely with the motor and gearbox OEM’s to determine torsional modal frequencies and stresses.
Client Case
Software Tools
Software Tools
- MSC Nastran
- MSC Patran
- Python
- SoftInWay AxSTREAM
- Dyrobes
- RBTS ARMD
- RSR RAPPID