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Professorship Machine Elements and Product Development
Professur MP

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Dissertation on the topic „Increasing the elastic potential of press connections by plastic conditioning of the joining partners“

31.01.​2019

On the 20th of December 2018 Dr.-Ing. Mario Schierz successfully defended his dissertation. His topic „Increasing the elastic potential of press connections by plastic conditioning of the joining partners“ sets new standards in the field of designing highly stressed shaft-hub connections. The available calculation method allows for the first time a targeted plastic conditioning of these machine elements to increase their elastic transferability. In the lively discussion, Dr. Schierz was able to convincingly demonstrate that he has undoubtedly achieved this goal in the case of the investigated press connections. In the subsequent evening event, the discussions were then continued until deep into the night, with the technical diction increasingly being modulated.

New Year – New Opportunities

22.01.​2019

New Year – New Opportunities

The professorship Machine Elements and Product Development (MP) wishes all students and employees a successful year 2019 and a lot of success in the upcoming exams.

Sincerely, Team-MP

End of the year 2018

19.12.​2018

End of the year 2018

Once again an eventful year is drawing to an end for the professorship of Machine Elements and Product Development. A lot of important scientific and industrial projects could be finished and new projects could be acquired in 2018. Furthermore the chair of the professorship was successfully transferred from Prof. Leidich to Prof. Hasse. New exciting fields of research and new colleagues enrich the established research. We are looking forward to the future in excitement.

The Professorship MP wishes everybody peacefully holidays and a good start into the New Year 2019.

Sincerely, Team-MP

Research

Hydrodynamic/Plain Bearings

Hydrodynamic/Plain Bearings
Growing ecological and economic pressure leads to ever higher and more complex stresses in the development of plain bearings. The research at the institute is therefore primarily concerned with the investigation and development of alternative sliding materials and the influence of geometric deviations. The main focus of the investigations is the wear behaviour under the most varied operating conditions (particles, mixed friction, hydrodynamics).

Shaft-Hub Connections

Shaft-Hub Connections
The permissible loads of selected WNV (tapered and cylindrical interference fit as well as feather key, knurled, polygonal joints, etc.) have been investigated primarily at IKAT for decades in the area of fatigue, fatigue and fatigue strength. The behaviour under individual loads (bending, torsion) as well as combined dynamic loads is analysed.

Friction Corrosion

Friction Corrosion
In contact with various components, deformations in connection with the prevailing joint pressure initiate the damage process of friction fatigue (friction corrosion). Current research activities at the institute focus on basic research on the damage phenomenon of friction corrosion and pursue the objective of developing an impact-compliant calculation method.

Flexible Systems

Flexible Systems
While conventional mechanisms owe their deformability to the sliding or rolling interfaces in the joints, flexible mechanisms fulfill their function through elastic stretches in places that are deliberately designed to be flexible during design. This functional principle enables novel, shape-adaptive structures, which can be used, for example, in softrobotics or in variable-shape wings. The professorship focuses its research on optimization-based synthesis methods.

Strength of Gearing

Strength of Gearing
The strength tests focus on the tooth root load-bearing capacity of worm gear units. The challenge to numerical imaging lies in the complex geometry and the special material bronze.

Friction coefficients for force-locked Connections

Friction coefficients for force-locked Connections
The coefficient of static friction (also: coefficient of friction or coefficient of friction) is to be understood as a system variable with a multitude of influencing parameters. In order to use existing potentials in friction-locking connections (e.g. screw, flange, press-fit connections), an experimental investigation is indispensable. With the help of standardized test methods on model samples, a wide variety of tribological configurations are examined at the research centre with regard to their transmission behavior. A major field of research is the synthesis of new design/selection tools for friction-enhancing measures (e.g. micro/laser structures, hard particles, coatings) for static and dynamic load cases.

Press Articles

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    From 18th to 19th September 2019, the Federal Cluster of Excellence MERGE will welcome guests to the 4th IMTC - The " Call for Papers and Posters " is open until the 28th of February - The " Call for Creatives " ends on the 31st of July …

  • Chemnitz welcomes ISINA for the sixth time

    Interdisciplinary Symposium for Women in Science, Technology, Engineering and Mathematics (German ISINA) will take place from 25 to 26 March 2019. Registration is possible till 15 March 2019 …