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New version of RomaxDesigner offers improved analysis and prediction capabilities

14 June 2010

The specialist power transmission design application, RomaxDesigner is now available in version R12.7. Included in the new version are advanced capabilities, such as accounting for thermal expansion, test duty cycles, improved NVH gear whine analysis, and gear root stress prediction to name just a few.

When designing transmissions, thermal expansion is a major factor and users can now account for this when using RomaxDesigner. RomaxDesigner now calculates the thermal expansion for all components, enabling users to visualize how this affects the whole system at the same time as considering clearances, deflections and preloads. This new capability considers the thermal expansion of shafts and bearings, as well as housings, planet carriers, and other imported finite element components.

Testing of transmissions is an essential part of the design process, and with RomaxDesigner’s new capability for test duty cycle generation, users benefit from massively reduced rig testing times. RomaxDesigner now generates a test duty cycle from road load data with condensed damages. This matches for both gear contact, gear bending and bearing damages within one single duty cycle, thereby reducing the need for additional testing time.

RomaxDesigner can now accurately perform a root stress analysis, predicting root stress due to gear mesh loads and system deflections. A critical gear performance parameter, users can now calculate this in RomaxDesigner, without having to resort to time-consuming and specialised FE analysis.

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