Tribo Technologies GmbH

To optimize the #efficiency of disengaged wet clutches, the aim is to minimize the drag torque losses to a large extent, which can be done by tests or #cfd simulations. Depending on the operating conditions, a single-phase flow (oil) or two-phase flow (oil, air) can occur in the clearance. Transient multiphase simulations considering sharp phase interfaces are demanding but allow high-resolution calculations of heterogeneous phase distributions. The simulations show very good agreement with measurements of drag torque and high-speed recordings on an optically accessible test rig for wet clutch discs. Are you developing lubricated systems and want to design and understand your system correctly? Then we can help you! #automotiveindustry #engineeringservices #development #simulation #lubrication #tribology

Thermodynamic and frictional losses have a major influence on the fuel consumption of an internal combustion #engine. Especially during cold start and short distance the engine friction determines the fuel consumption. The piston assembly plays a major role in engine friction. Optimizing the piston assembly therefore offers great potential for savings in terms of fuel consumption and #CO2 emissions. With the #CFD model shown in the video, quantities such as ring #dynamics, blow-by, oil transport and oil distribution, contact forces between rings/liner and rings/grooves as well as friction including mixed friction can be calculated for a working cycle. In order to be able to calculate the ring dynamics and mixed #lubrication, the CFD model was extended via user define functions (UDF). The availability of UDF in #Ansys Fluent offers the possibility to integrate many self-developed submodels into the Ansys environment. #automotiveindustry #engineeringservices #tribology #simulation #efficiency

Tooth flank modifications pursue the objective of reducing local stress concentrations, supporting better lubricant film formation, increasing the lifetime or improving the NVH behavior of #gears. With Tribo-X, the effects of any tooth flank modifications on the performance of the tooth flank contact with spur and helical gears can be investigated in detail. It is also possible to consider manufacturing or wear profiles. For NVH investigations, Tribo-X calculates operating point dependent stiffnesses and damping along the path of contact that can be used as input data for multibody simulations. In the context of virtual product #development, 3D TEHD simulations allow a detailed and targeted analysis of design solutions and thus contribute to a better product understanding and more efficient products. #automotiveindustry #engineeringservices #gearbox #lubrication #simulation #tribology #efficiency

In turbomachinery, radial tilting pad journal #bearings fulfill the most demanding conditions in terms of speed, load, and rotor dynamics. Circumferential speeds of the shaft (rotor) of 100 m/s and more are possible. The tilting mobility of the segments prevents self-excited rotor vibrations. The video shows the behavior of a 5-segment bearing under stationary load and a rotating unbalance. Our Tribo-X software allows you to calculate and optimize tilting pad journal bearings, multilobe journal bearings or cylindrical journal bearings with fluid and mixed friction under steady-state and transient operating conditions. #mechanicalengineering #simulation #rotordynamic #tribology

In disengaged wet clutches, a considerable proportion of the power loss is caused by the viscous shearing of the cooling oil between the individual discs. To optimize the #efficiency, the aim is to minimize these losses (drag torques) to a large extent, which can be done by tests or #cfd calculations. Besides the optimization of the clearance, the cooling oil temperature and the oil volume flow, the drag torques can also be influenced by the groove design. Do you need support in in experimental or numerical optimizing your groove design or would you like to investigate the impact of operating conditions on the drag torque? Then contact us! #automotiveindustry #engineeringservices #development #gearbox #clutch #lubrication #tribology

Are you looking for a competent partner and want to ✔️ design and understand your system correctly❓ ✔️ further optimize your system❓ ✔️ evaluate design variants before the first test❓ ✔️ get to the bottom of the cause of damage that has occurred❓ ✔️ not carry out tests yourself❓ ✔️ have damaged components or lubricants examined❓ ✔️ have a test rig realized according to your requirements❓ Then get in touch with us❗ #development #engineeringservices #simulation #testing #tribology #efficiency

Tribo-X is our calculation tool for the #simulation of lubricated machine elements based on TEHD simulations. With the new release Tribo-X 5.1 we provide new functionalities and make working with Tribo-X even easier. 👉 New Feature: Tilting Pad Bearings ✔️ Steady-state and transient TEHD simulations of tilting pad bearings ✔️ Derivation of stiffness and damping coefficients ✔️ Iterative determination of the tilting angle of the tilting pads ✔️ Arbitrary specification of the tilting point in circumferential and width direction ✔️ Superposition of the tilting segment sliding surface with arbitrary contour ✔️ Consideration of the deformation behavior on the basis of compliance matrices 👉 Improved usability ✔️ Recent Calculation Button: Access to the last defined calculation with just one click ✔️ Calculation descriptions can be added 👉 Improved user help Tribo-X 5.1 is available now. Try it out! #development #engineeringservices #tribology #efficiency

With the aim of increasing the gear #efficiency and improving the acoustics of #gears, new surface processing methods are continuously being investigated for their potential. TEHD simulations enable an evaluation of the machining process and thus allow a pre-selection of promising process. TEHD simulations of the tooth flank contact of spur, helical or bevel gears also allow the calculation of operating point dependent stiffnesses and damping over the path of contact, which can be used as input variables for multibody or acoustic simulations. #automotiveindustry #engineeringservices #development #simulation #gearbox #tribology

❗English below. Vom 23.-25. September findet die Tribologie-Fachtagung der Gesellschaft für Tribologie e.V. (GfT) in Göttingen statt. Wir sind dort Sponsor und Aussteller und freuen uns über das Interesse an unseren Produkten und Dienstleistungen. From September 23-25, the Tribology Conference of the Gesellschaft für Tribologie e.V. (GfT) will take place in Göttingen/Germany. We are a sponsor and exhibitor there and are delighted at the interest shown in our products and services. #engineeringservices #tribology #development

In addition to a TEHD #simulation (https://lnkd.in/gvyhGCFG), a wear simulation of the journal bearing can be carried out to evaluate the changing operating behavior of the bearing with increasing operating time. Wear changes the friction, temperature and the shaft displacement curve as well as the stiffness and damping of the conrod bearing. The wear model in Tribo-X allows simultaneous consideration of two different bearing shell materials with different wear coefficients when the top and bottom shells of a journal bearing are made of different materials. #automotiveindustry #engineeringservice #development #bearings #tribology