With Aerospace expertise since 1989, Romax can help you deliver quality products in less time and with reduced prototyping, in order to meet the challenging industry requirements for increased efficiency and reduced emissions.
Rolls-Royce
Inventor of Geared System Digital Solution
Proven Track Record in Aerospace Engineering
Highest Data Security & ITAR Registration
Advanced R&D for Aerospace
Our state-of-the-art multi-physics solutions include:
Software tools
- Our award-winning software enables optimisation through full system analysis, from early concept design through to a complete digital twin
- Specify flight cycles and analyse durability, efficiency and dynamic response of gears, bearings, shafts, housings and splines using a combination of industry accepted standards and unique capabilities
- Our multi-fidelity approach allows the user to strike the right balance between fast analysis times and required accuracy
- Interfaces and import/export options to a vast ecosystem of leading software tools allows Romax to fit seamlessly into your design process
- Interfaces to leading electromagnetic simulation tools allow electric and hybrid power systems to be modelled, analysed and optimised
Engineering services and R&D
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- Rich history of collaboration with OEMs and universities on aerospace projects
- Deliverance of design projects from problem identification through to manufacture and test
- Award-winning strategic consulting for process improvement
- Engineering management and project services including programme management, systems engineering and risk mitigation
Expertise
Aero Engine
- Static and dynamic analysis of high-power planetary gearboxes, as well as step-aside and external gearboxes
- Main shaft bearing analysis considering system deflections and flight manoeuvre effects
- Rotordynamics of transmission systems and main shafts identifying critical speeds and rotor whirl
- Digital certification tool provides early assessment aligned to EASA and FAA certification
Rotorcraft
- Modelling and analysis of complete helicopter drivelines, including main gearbox, drive shafts, rotor head and angle drives
- Weight reduction, including housing optimisation and gear root stress analysis of thin rimmed gears
- Achieving regulatory requirements for reduced noise, pollutants and fuel consumption
- Highest Data Security & ITAR Registration for defence applications
Hybrid and Electric
- eVTOL power and transmission, including full system modelling
- Electro-mechanical system dynamics including motor excitation
- Digital twin of test rigs of electric power systems for reduced testing costs
- Leveraging years of experience of driving electrification in the automotive industry
Example Customer Applications
Geared Turbofan
Requirement: Transmission engineers continually need to develop new and innovative solutions to improve efficiency, reducing pollutants and fuel consumption.
Services provided: Using a combination of our practical engineering software we were able to assess a large number of early design concepts in terms of durability and efficiency. In the development of a geared turbofan or turboprop, the gearbox is utilised to power a propeller at controlled speeds to remove excess power from the turbine and increase efficiency. We were able to develop this system to make reductions in fuel burn, engine noise, CO2 and NOx emissions.
Tilt Rotor
Demand for tilt rotorcraft is growing in the market, both for defence and civil applications. There are gearboxes in each nacelle to ensure that the engine output shaft speed matches the prop rotor speed, requiring up to five gearboxes to achieve this: two in each nacelle and one central transmission in the centre fuselage. The weight and size challenges are significantly greater than those faced by other rotorcraft.
Romax has been proactively helping the industry select the optimal driveline design to maximise performance with minimal weight/size. Following successful implementation, its value was confirmed in the findings of a NASA-funded research study.
Helicopter Split-Torque Gearbox
Helicopter gearboxes with multiple load paths need to be designed to ensure equal load sharing. This can be achieved by setting the correct amount of backlash in the gear pairs to account for elastic deformation from torque application. Consideration is required for deformation from gear tooth bending and contact, rolling bearings contact, gear shaft, gear blank and housing deflections.
Accounting for all these factors is increasingly difficult with conventional FE tools. In one particular example, exhaustive parametric studies were performed to assess the percentage torque measured through one of the load paths. The results highlighted unequal load sharing closely matching findings from physical testing.
