Here you can see the topology optimisation of a shape-adaptive compliant mechanism. Compliant mechanisms are characterised by the fact that they generate desired deformations through elastic distortions. The starting point for the design is a design space filled with finite elements. A topology optimisation approach developed at IKAT scales the stiffness of the finite elements…
At the 13th SAXSIM Conference in Chemnitz, Mr. Muhammedi presented a lecture on „Numerical Investigations into the strength of deep-rolled components under cyclic loads.“ The project, involving three research institutes – IKAT, IMM, and IF – focuses on analyzing the strength of deep-rolled components under cyclic loads through numerical simulations. Mr. Muhammedi explained the methods…
We analyse hydrodynamic plain bearings for form and position deviation using the ALP3T simulation tool (general bearing programme with three-dimensional temperature distribution). The picture shows a rotating form deviation in the form of a three-sided polygon. The pressure distribution is shown on the left and the temperature distribution on the right. The shaft and the…
In components under cyclic loads contacts, micro-slip movements lead to a local change in the coefficient of friction (coefficient of friction development), knowledge of which is essential for the consideration of numerous effects (fretting fatigue, vibration wear, rolling bearing migration, transmission capability, contact stiffness). In addition, the reserves of the components in the drivetrain are…
On 1 March 2024, Mr. Maik Zylla successfully defended his diploma thesis in front of an expert examination committee headed by Prof. Hasse. In his thesis ‚Investigation of the joining and torsional behaviour of combined press-fit and form-fit shaft-hub connections using the example of the external knurled press-fit connection‘, useful extension approaches for existing design…
In the field of drive technology, the demand for the backlash-free transmission of high power is increasingly being met by the use of combined force and form-locking shaft-hub connections. One representative, the internal knurled interference fit, is characterized in particular by the transmission of high power densities under static and cyclic loads, its functional integration…
The phenomenon of fretting fatigue that occurs in component joints is currently a major challenge in the service life assessment of components. The reason for this is a tribological stress component in the contact joint of the components, which prevails in addition to the obligatory fatigue stress. Depending on the material and the tribological parameters,…
The 10th Symposium „VDI Fachtagung Welle-Nabe-Verbindungen“ (external link) which deals with shaft-hub-connections will take place on 6 & 7 November in Garching near Munich. All topics relating to the wide range of shaft-hub connections will be presented at this conference, with a particular focus on design/dimensioning, strength verification, production and application, as well as current…
In cooperation with Dr Schierz, the publication „The Influence of Reverse Yielding on the Plastic Conditioning of Interference Fits in Power Transmission Engineering“ (external link) was published, which describes the reverse yielding of plastically preconditioned interference fits. It describes how large the plastic preconditioning may be without reverse yielding occurring.
Fretting fatigue is a major uncertainty factor in industrial applications. The cause is tribological damage in the component contacts, which results in an enormous reduction in fatigue strength. IKAT has been researching this phenomenon for over 20 years now in order to make it easier to assess and to formulate remedial measures. The test rig…
At the international conference „24th International Colloquium Tribology“ on the topics of friction, wear, lubricants and tribomechanics, the institute showed up with IKAT-specific research topics. Mr Silvano Oehme presented the latest results of the research project „Simulation of the local CoF development in cyclically loaded clamped contact surfaces (fretting)“. With a combined approach of model…
For the past 15 years, we’ve dedicated ourselves to the relentless pursuit of advancing the field of topology optimization for compliant mechanisms. Our journey has been marked by continuous improvement in our procedures, and today, we are thrilled to share the evolution from our humble beginnings in 2009 to the present. Please click play to…
The IKAT team wishes all students, colleagues and research partners a happy new year. We are looking forward to exciting tasks and successful collaboration.
IKAT wishes you a Merry Christmas and a Happy New Year. For those who like to continue researching drive technology on the holidays, please follow the link.
We are pleased to announce that our team member Lukas Suchý was honored with the prestigious Hans-Winter Prize at the FVA Information Conference 2023 in Würzburg. The presentation was titled „Strength Verification of Press-Fit Connections Under Gear-Specific Combined Loads„. This award recognizes Lukas’s outstanding contributions to the calculation of component fatigue in contacts. During the…
IKAT is ringing in the Christmas season with a new interactive test bench. This consists of a Christmas pyramid in composite construction with all kinds of decorations. You can actively control the rotational speed of the pyramid based on the number of clicks – teamwork is required here. We hope you have fun exploring together.…
The Forschungsvereinigung Antriebstechnik e.V. (Research Association for Drive Technology) hosted the autumn meeting of the Shaft-Hub-Connection working group in Maintal on 8 and 9 November. The approximately 50 participants, made up of representatives from 15 industrial companies and 5 universities, exchanged views on current research topics. The institutes – including the members of IKAT’s Fatigue…
Prof. Hasse and Ms. Nettlenbusch attended the Design for X Symposium (external link) in Radebeul on 14th and 15th September. Five topics were presented by young scientists from all around Germany. Nettlenbusch presented on „Design-related sustainability assessment“ and discussed her methods for evaluating product sustainability in the early stages of the product life cycle. Following…
On 06.09.2023, IKAT took part in the Chemnitz company run with 7 participants. The starting signal was given at 18:45 and the hunt for good times began. The course led from the city centre via Hartmannplatz around the Schlossteich back to the city centre. On the 5-kilometre course, our trainee Pablo Silvestre was the fastest…
To intensify international cooperation, Prof. Dr. Hasse travelled to Stellenbosch University with a delegation from the Chemnitz University of Technology. The campus of Stellenbosch University has a „lively atmosphere“ and houses „state-of-the-art research facilities“ according to Prof. Dr. Hasse (external link). Discussions were held between academics and with students to promote academic and student exchange.…
From September 4 to 8, Prof. Hasse will participate in the Ilmenau Scientific Colloquium. This year there are sessions addressing „Productive Teaming“, a research direction of IKAT. Prof. Hasse will present the paper „AN AI-DRIVEN DESIGN METHOD AS BASIS FOR TEAMING“. In addition to IKAT, numerous researchers from the CHIM network will participate, presenting their…
On Thursday 13 July, IKAT organised its own hiking day, which took us through the Tharandt Forest from Klingenberg-Colmnitz via Grillenburg castle to the botanical garden in Tharandt. During the 22 km hike and the two picnic breaks, there were plenty of opportunities for professional and interdisciplinary exchange.
Last month, the Chair of Machine Elements and Product Development organised a student excursion as part of the course Design/Machine Elements. The Flender Industriegetriebe company has its large gearbox division at this location, which has been characterised by mechanical engineering since the 19th century and is only 40 km away from Chemnitz, and manufactures gearboxes…
At the 15th VDI Conference on Plain and Roller Bearings, the Plain Bearings group presented a joint project with the Klüber company, which deals with the reduction of failure by fretting fatigue in plain bearings. Here, a thin polymer layer was applied to plain bearings to reduce wear. The advantages of this process were presented…
From 21-23 June, the seventh International Conference of Engineering Against Failure (ICEAF VII) took place on the island of Spetses in Greece. Here, calculation concepts for the safety of components are presented and discussed, and our WNV/Strength Group contributed its findings in the area of shaft-hub connections and fretting fatigue. At the same time, our…
Mrs. Nettlenbusch and Dr. Reißmann attended the 4th Symposium on Education for Sustainable Development at the New City Hall in Leipzig on May 9th. The event focused on the topic of ESD and global perspectives. After a short introduction, the event started with an inspiring speech by Benki Piyãko, the representative of the indigenous Asháninka…
Professor Hasse presented IKAT´s latest research findings on the potential of laser structuring on the surface of components for increasing friction coefficient during the Materials, Hybrids session at the FVV Spring Conference on March 30th, 2023. The project, „Tribomaps – friction coefficient enhancing laser structures,“ was completed in collaboration with the Laser Institute (Prof. Löschner)…
„Transition Engineering” is an engineering discipline invented by Prof. Susan Krumdieck. It aims to develop of technical systems that meet today’s needs without compromising the ecological, economic, or social systems of future generations. It is a continuous process characterized by the integration of past, present and future perspectives. IKAT’s Transition Lab is designed to sensitize…
After a break of three years, the Saxon simulation users‘ meeting SAXSIM took place again in Chemnitz, and IKAT was also strongly represented with the specialist group Strength/SHC. Prof. Dr. sc. ETH Hasse opened the third block of the conference with the award ceremony of the student competition. Mr. Le followed with a presentation on…
We congratulate Sebastian Vetter on his successful doctorate in the topic: „Estimation of the scattering of the fatigue strength of shafts and axles in the area of long-term strength“ and at the same time thank him for the good cooperation in the past years. We wish S. Vetter all the best on his further path…
With the successful finalisation of the AiF–BMWK-funded research project “ Journal bearing system tolerances“, coordinated by the FVA, IKAT was able to demonstrate the correlation between geometric deviations and changes in the nominal operating parameters of the journal bearing. The main part of the investigations was a wide-ranging parameter variation in which form and tilting…
IKAT is researching possibilities for integrating artificial intelligence (AI) into the design process, with a particular focus on topology optimisation. With the tool TODL, a demonstrator was developed that shows the user the potential of machine learning.
IKAT welcomes Lisa-Marie Nettlenbusch to the product development research group. Ms Nettlenbusch studied industrial engineering (Bachelor and Master) at the TU Chemnitz and is working on life cycle analysis. In her research project, possibilities for creating a life cycle assessment during the design process are being developed and validated. We are looking forward to the…
IKAT wishes all staff, students and research colleagues a Happy New Year. We look forward to the upcoming tasks, challenges and surprises in 2023.
Together with Father Christmas, IKAT is researching „frictionless sled guidance“. By reducing the coefficient of friction from μ = 0.05 to μ = 0.00, an annual saving of 460•107 t CO2eq* is achieved for an annual sledge travel of 8•108 km and a permissible total weight of the sledge of 16•106 t. We look…
On 9 and 10 November, the IKAT’s Division “Festigkeit” travelled to the working group in Bruchsal and presented current research results on the topic of Shaft-Hub-Connections. These were lively discussed at a high level with industry representatives and other research institutes. We would like to thank the Research Association for Drive Technology (FVA) and the…
The Product Development Group is working on the project „sensor-integrating feather keys for the detection of torques“ as part of the priority program „sensor-integrating machine elements“. Here, the structure of a classical feather key is modified with the help of an optimization methodology developed at the professorship in such a way that the torque transmitted with…
IKAT has successfully published its research results on estimating the survival probability of shafts in the renowned paper ‚Engineering Failure Analysis‘. We would like to thank Dipl.-Ing. S. Vetter for his excellent research work in the group WNV/Strength and congratulate him on the publication of the research results. Herein, a proposal is given for estimating the…
Every six months ─ in spring and fall ─ the information conferences scheduled by the Research Association for Combustion Engines (FVV) take place. At these conferences, German and international institutes present their FVV-funded research projects in the categories „Efficiency, Materials and Turbomachinery“. At this year’s FVV autumn meeting, IKAT had the honor to present the…
We are happy that Kristian M. Mauser successfully defended his PhD-Thesis on October 7th. The topic is: “Nachgiebige Mechanismen mit variable Steifigkeit durch das gezielte Aufbringen einer belastungsinduzierten Vorspannung.” The IKAT congrats Kristian M. Mauser and wishes all the best in the future and continued success in all of his endeavours. At picture from…
Also outside the scientific work the employees of the IKAT prove a long endurance. A group of 6 highly motivated colleagues laced up their running shoes on September 7th and participated in this year’s company run, which attracted over 6000 participants from 500 companies. The almost 5km long course started at the square in front…
The phenomenon of fretting fatigue occurring in component connections represents a major challenge in the service life assessment of components from the current point of view. The reason for this is a tribological stress component in the contact surfaceof the components, which prevails in addition to the obligatory pure fatigue stress. Depending on the material…
The committee on journal bearings (jb) of the research associations Verbrennungskraftmaschinen (FVV) and Antriebstechnik (FVA) was a guest in Chemnitz on June 28 and 29, 2022. The JB research group of IKAT under the leadership of Prof. Hasse and Mr. Prase organized the two-day meeting. The location of the meeting was the conference room in the…
On may 23 and 24 the IKAT of Professor Hasse has presented results to the project board of „Welle-Nabe-Verbindungen“ (shaft-connections) in Frankfurt (Main). 9 employees – Professor Hasse included – have presented their results and ideas for current and upcoming projects. The presentations have been discussed by the representatives of the economy and other institutions.…
Since the beginning of April, Mr. Tobias Hentschel strengthens the research group WNV/Strength. We welcome him cordially at our professorship. Mr. Hentschel completed his bachelor’s degree in mechanical engineering at Mittweida University of Applied Sciences including an apprenticeship as an industrial mechanic. He then completed his master’s degree in mechanical engineering at Chemnitz University of…
The professorship says goodbye to its employee Martin Möllerke. Mr Möllerke was part of the tribology department and supervised projects on friction coefficient determination and friction coefficient development. In addition, Mr Möllerke took care of the cooperation with various partners in these topics. Besides these topics, Mr Möllerke was able to contribute to the optimisation…
Since mid-February, we welcome Mr. Patrick Schlapp as a new employee at our professorship. In the newly created position of laboratory engineer, he adds an important link to our team and thus relieves both the technical and the scientific staff. Due to the experimental orientation of IKAT’s research activities, our professorship hosts a large number…
In February, Mr. Suchy and colleagues from the Technical University of Prague published new research results in the journal „Metals“. In the publication „Benchmarking Newer Multiaxial Fatigue Strength Criteria on Data Sets of Various Sizes“, the authors investigated the validation process of new fatigue criteria for multiaxial fatigue stresses. Six newly introduced criteria and four…
We are pleased to welcome Mr. Benjamin Muhammedi as a new research assistant at our professorship. He supports the shaft hub connections/strength research group already since the beginning of the year. Mr. Muhammedi studied mechanical engineering with the area of specialization in applied mechanics and thermodynamics at the TU Chemnitz and wrote and successfully defended…
In the course of the expansion of the test field, the heart of the Chair of Machine Elements and Product Development, some of the test benches were extended in their scope of performance. The HPP100 hydraulic pulsator test rig was equipped with new drive and control technology. This enables flexible user-defined test sequences, the recording…