IGD v.3.8.161 has been released on February 22^nd, 2023, and it is available to download now. Go to Help -> Check for updates… to update your current installed version of IGD. This new version includes the following features and/or enhancements:

• Implemented four types of geometry of hob with protuberance.
• Improved functionality of the definition window of the hob with protuberance.
• Implemented computation of stock left on the flank of the hobbed geometry.
• Added generation of the geometry by hob with protuberance. Enabled the possibility to choose from the hobbed-generated geometry or the finished geometry of the gear after grinding.
• Fixed exception that was thrown when generating a FE model of spline couplings.
• Implemented Load/Save methods of the spur and helical geometry for thermal distortion analysis by DANTE.
• Improved FE model for thermal distortion analysis to fix some issues with the external layer of elements under the active surfaces intersecting before intersecting the offset of the top land.
• Implemented other small changes and overall improvements to the program.

IGD v.3.8.123

• Made some changes to the geometry of the outer rotor of gerotor pumps as requested by a consortium member
• Updated Eyeshot libraries to Version 2022.3.
• Implemented the post-processing of the distorted gear surfaces in IGD due to heat treatment after simulation with DANTE and ABAQUS. See https://dante-solutions.com/ for more information on heat treatment simulation.
• Implemented geometry and FE model for interference fit analysis of gear and shaft.
• Implemented the computation of the maximum interference or minimum clearance between the fillet surface of one gear and the trajectory of the edge of its mating gear.
• Fixed some issues with the geometry comparison of internal gears with free-form geometries.
• Various general “under the hood” improvements.

IGD v.3.8.80

• Implemented a new FE model for distortion analysis due to heat treatment in spur gears with DANTE. See https://dante-solutions.com/ for more information on heat treatment simulation.
• Fixed issue when updating the face width of the pinion and wheel from the Smart design window of spur and helical gears.
• Improved the alignment of the TCA coordinate system in helical gears to avoid some issues with TCA in some special cases of design.
• Added the possibility to build finite element models with the whole pinion and a wheel with the same number of teeth of the pinion plus one.
• Various general “under the hood” improvements.

IGD v.3.8.61

• Implemented new geometries of external and internal spur and helical gears with chamfered edges.
• Implemented other small changes and overall improvements to the program as suggested by the members of the consortium.

IGD v.3.8.54

• Updated graphical IGD libraries to the latest version.
• Implemented new geometries of external and internal cylindrical gears generated by skiving.
• Implemented the comparison of profiles of skiving cutters in XYZ format.
• Added a new feature to compute and show the deviations of the profiles of cylindrical gears with respect to the reference involute profile.
• Fixed issue with TCA of helical gear drives with free-form designed tooth surfaces.
• Implemented other small changes and overall improvements of the program as suggested by the members of the consortium.
• Various general “under the hood” improvements.

IGD v.3.7.166

• Fixed bug when importing ODB energy results.
• Implemented other small changes and overall improvements of the program as suggested by the members of the consortium.

IGD v.3.7.161

• Fixed representation of the contact pattern in the summary of TCA of face-gear drives.
• Implemented the advanced definition of double-spur gears.
• Various “under the hood” improvements.

IGD v.3.7.137

• Implemented tip-to-fillet interference detection as a result of TCA.
• Fixed computation of the profile shift coefficient of internal spur gears generated by a shaper.
• Fixed representation of the 2D FE model with quadratic elements for the whole gear set.
• Implemented -Export assembly- option for helical gears.
• Implemented other small changes and overall improvements to the program.

IGD v.3.7.122

• Implemented computation of backlash in CURVIC couplings.
• Improved the TCA approach for CURVIC couplings.
• Implemented -Export assembly- for CURVIC couplings and spur gears. It allows the assembly of the gear set to be exported to main CAD computer programs.
• Removed absolute positioning errors for TCA. All gear sets now implement relative positioning errors.
• Fixed default case for hypoid and hypoloid gear drives.
• Implemented other small changes and overall improvements to the program.
  

Simulation tools are now available to simulate complex gear measurements after heat-treatment simulation. This is the focus of the feature article that has just been published in Thermal Processing, and that is available online here.

Heat treatment simulation provides a cheaper and faster alternative to physical testing but is lacking the capabilities to relate the predicted distortion back to gear measurements made on the shop floor or in the metallurgical lab. In general, diameter distortion predictions are easily understood and correlated back to actual measurements, but simulated predictions on parameters such as tooth thickness, tooth profile, and runout can be more daunting to evaluate and are often ignored in published analyses. To bridge this gap, two software programs can be used to provide common gear measurements on the simulated, heat-treated gear. IGD  - Integrated Gear Design - developed at the Rochester Institute of Technology, is used to design the gear geometry and post-process the heat-treatment simulation results. DANTE, developed by DANTE Solutions, is used to simulate the heat treatment of steel components.

The Power Transmission and Gearing (PTG) Committee of the American Society of Mechanical Engineers (ASME), Design Engineering Division invites you to participate in the ASME 2023 Power Transmission and Gearing Conference. The conference will be held in conjunction with the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conferences (IDETC/CIE) in Boston, Massachusetts, on August 20-23, 2023.

We are very pleased to announce that ALLISON TRANSMISSION has renewed its membership with the RIT's Gear Research Consortium for the year 2023. We want to express our deepest appreciation for their continued support for so many years. Their membership renewal will enable us to continue developing and delivering computational tools for advanced gear design to meet all their gear design and simulation needs. We are looking forward to completing another year of successful collaboration.

The second RIT’s Gear Research Consortium Meeting was held on June 2^nd, 2022, and brought together consortium members, as well as collaborators and observers interested in learning about the latest developments and new features implemented in the software IGD – Integrated Gear Design. The developers of IGD introduced the new features of design and simulation available in the software as well as a new approach for the analytical determination of basic machine-tool settings for the generation of high-reduction face-hobbed hypoid gears. Members of the Consortium presented their companies as well as an update of recent projects and examples of how IGD has contributed to improving their products.

We are very pleased to announce that EGILE has renewed its membership with the RIT's Gear Research Consortium for 2022/23. We want to express our deepest appreciation for their continued support for so many years. Their membership renewal will enable us to continue developing and delivering computational tools for advanced gear design to meet all their gear design and simulation needs. We are looking forward to completing another year of successful collaboration.