ENGINES, TRANSMISSIONS & PROPULSION
Teignbridge Is Known and Respected Across the World as a Trustworthy and Reliable Designer and Manufacturer of Propellers and Stern Gear
However in recent years it has become clear that the market demands more than reliable designs and high quality precision components.
Customers are pushing the boundaries regarding what they want to achieve from their propulsion packages. Generally, increased performance, reduced vibration and/or increased fuel economy. In addition they want technical support and the confidence that the designs will translate into the real world and deliver the performance envisaged.
Teignbridge recently completed a £3m research project into propeller efficiency and the legacy of that project is a highly qualified and experienced design team supported by advanced computational fluid dynamic simulation CFD (Star CCM+), unique propeller design optimisation software, cavitation modelling, wakefield propeller analysis, finite element analysis and a propulsion research vessel that can validate the theoretical designs at sea and scale. No other propeller designer and manufacturer has this unique combination of assets that are available to all customers.
Teignbridge is able to combine over 45 years of experience across a number of sectors with cutting edge technology to provide customers with unrivalled, high efficiency propeller designs. Using two large volume 3D printers and a 5-axis CNC pattern mill, it is possible to produce highly accurate patterns, ensuring that the CNC machined propellers
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are a faithful implementation of the intended design, delivering the predicted performance.
In-house, genetic algorithm driven propeller design optimisation is a truly remarkable asset. Using this approach 500 designs iterations can be generated and evaluated in CFD during a 48 hour period. Optimisation for performance can be tuned for efficiency, cavitation, noise and more. The methodology can be run on the Teignbridge in-house 20 core workstation or via cloud computing. Another feature of our computing capabilities is the wake field analysis which allows us to predict the flow of water around the hull and through the propeller, truly accounting for the real operating conditions. Propeller design optimisation by this method refines the propeller design beyond that of
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a standard approach, combining the best of experienced design engineers and advanced numerical simulation.
This integrated approach to propeller design starts by assessing the mission profile and/or history of vessel and the propulsion specification. The propeller is then designed for efficiency utilising computational fluid dynamics (CFD): Star CCM+ and genetic algorithm driven design refinement. Teignbridge can then undertake fully transient CFD wakefield simulation and wakefield
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