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The loaded tooth contact analysis (LTCA) is crucial in understanding the deformation of gears and its impact on various factors such as noise generation, contact patterns, contact shocks, and torque variations. With the contact analysis feature in KISSsoft, users can calculate tooth contact under specific torque and speed levels, thereby assessing the performance of gears and gearboxes.
KISSsoft helped AGH Racing students in Poland develop steering column gears in the RTC7.0 race car powered by an internal combustion engine. Then they used the software to develop a gearbox for their new electric AWD drivetrain in the upcoming RTE3.0 car. Most importantly, they could optimize the micro geometry of the gears and analyze the influence of different factors on the durability of the gear tooth. KISSsoft made it easier to apply quick changes in the project, as it adapts other tooth geometry to the ones they were working on.
In KISSsoft's scheduled trainings until December 2023, attendees will find introductory training courses, advanced training courses and special training courses on selected topics.
KISSsoft has announced that NSK has provided their extensive bearing data “catalogue data” for inclusion in KISSsoft software with release 2023. With this, the engineer can execute static rating, basic and modified life rating based on load capacity numbers in line with ISO 281 and ISO 76 along with thermal rating. The bearing database in KISSsoft gives access to up-to-date NSK bearing data in an easy to use yet detailed manner using the shaft-bearing system modeler.
With the help of KISSsoft, the user can combine the FE method with analytical models when designing a high-performance gear or drivetrain. The stiffness matrix of a gear body can be calculated accurately with KISSsoft using its advanced modeling capabilities for gear bodies. The effect of the gear body stiffness can be integrated in different KISSsoft calculations, like flank line modifications and loaded tooth contact analysis.
In an urgent assignment, a gear has to be designed, with the engineer already knowing the required reduction ratio, torque and speed. On the manufacturing side, the preferred materials, possible qualities and the reference profiles are specified. This initial situation represents an everyday task.
Mechanical engineering theory, design and practice come into play for NYCU Vulpes Racing Team
April 6, 2023
NYCU (National Yang Ming Chia Tung University) Vulpes Racing—founded in 2008—is a Formula Student Team that combines mechanical engineering, industrial design, public relations, video production and marketing expertise.
The new KISSsoft release 2023 comes with numerous novelties. Among others, Gear Mesh Frequencies (GMF) can now be calculated for cylindrical and bevel gears. GMF results are visualized in two different diagrams, i.e. GMF versus rotational frequency of the reference gear, and GMF versus amplitude.
KISSsoft offers the calculation of geometry and contact stresses of Hirth couplings. Hirth couplings allow for thetransmission of high torque between shafts. In KISSsoft, users can select a standard Hirth coupling offered by Voith GmbH & Co. KGaA or enter their own custom geometry for the calculation.
Contact analysis can be used to calculate the transmission error and determine the profile modifications of a gear stage. In addition, a wide range of important gear-specific parameters can be calculated, such as tooth root stress, distribution of Hertzian pressure, oil film thickness, and many more.