Selected Current Projects

Load Carrying Capacity Cylindrical Gears

• Stress-reducing Geometry Optimization of Short Fiber Reinforced Polymer Gears to Increase Tooth Root Bending Strength (DFG, STA 1198/33-1)
• Calculation method for the pitting load carrying capacity of cylindrical gears based on local stresses in the lubricated rolling and sliding contact (FVA-Nr. 1040/I)
• Load-carrying Capacity and Strength Properties of Laser-Hardened Gears (FVA-Nr. 1004/I, IGF-Nr. 23042 BG/1)
• Definition and characterization of further FVA reference oils (FVA-Nr. 852/III)
• Load Carrying Capacity of Additively Manufactured Gears (PBF-LB/M, 16MnCr5) with Lightweight Optimization of Gear Hubs (FVA-Nr. 993/I, IGF-Nr. 22864 N/1)
• Influence of Overloads on Tooth Flank Fracture of Case Carburized Gears (FVA-Nr. 992/I, IGF-Nr. 22866 BG)
• Test Methodology for Assessing the Performance of Lubricants for Gears in E-Mobility Applications: Reliable Assessment of the (Scuffing) Load Capacity of E-Mobility-Lubricants (FVA-Nr. 988/I, DGMK-Nr. 833)
• Characterization and Utilization of Process-Induced Residual Stresses for the Manufacturing of Functional Surfaces by Near-Net-Shape-Blanking Processes (DFG-Nr. 374524261, SPP 2013, STA 1198/13-3)
• Influences of Lubricant and Lubrication Condition and their Extended Consideration in the Calculation of the Pitting Load Carrying Capacity of Gears (FVA-Nr. 459/IV, IGF-Nr. 22363 N/1)
• Influence of optimized cryogenic treatments on gear load carrying capacity (FVA-Nr. 612/IV, IGF-Nr. 22373 N)
• Induction Hardening of Feature-Integrated, Additively Manufactured Lightweight Spur Gears (FVA-Nr. 945 I, IGF-Nr. 22024 N)
• Light4Speed – Resource-Efficient Gears for Modern High-Speed Drive Train Concepts (BMWK 03LB3014A)
• Development of a Test Method for Determining the Tooth Root Load-Carrying Capacity of Polymer Gears According to VDI 2736 Using a Pulsator (FVA-Nr. 932/I, IGF-Nr. 21797 N)
• Conditioning of highly retained austenite containing conditions by cold hardening processes to generate maximum gear load carrying capacity (FVA-Nr. 919/I, IGF-Nr. 21546 N)
• Tribologically Optimized Design of Internal Gears (FVA-Nr. 482/V, IGF-Nr. 22065 N/1)

 

EHL-Tribocontact and Efficiency

• Lubricant film formation and lubricant availability in grease-lubricated line contacts of plastic gears (FVA-Nr. 1047/I)
• Numerical and Experimental Analysis of Heat Transfer in Dip Lubricated Gearboxes (FVA-Nr. 857/III, IGF-Nr. 01IF23339N)
• Methodology for Considering the Influence of Rolling Element Bearings in CFD Oil Flow Simulations of Gearboxes using Rolling Element Bearing Sub Models (FVA-Nr. 1029/I, IGF-Nr. 01IF23143N)
• Novel waste heat thrust generation system for fuel-cell powered geared-electric-fan engine (EU HORIZON-CL5-2023-D5-01)
• Program enhancement WTplus, calculation modules for electric motor with gearbox, bearing losses, update of REXS interface, extended output options (FVA-Nr. 69/X)
• Study on particle-based simulation of gearbox oil flow and no-load gearing power loss of practical gearboxes (FVA-Nr. 857/II)
• Study of Local Gear Power Losses of Spur Gears in Comparison with Established Approaches (FVA-Nr. 686/II)
• Fluid-free lubricated spur gears – Contour-matched coating design and tribological evaluation of performance limits (DFG-Nr. 357505886, SPP 2074 II, STA 1198/17-2)
• Chemical and Physical Reduction of Frictional Energy (BMWK 03EN4005A, BMWK 03EN4029A)
• Resource efficiency through self-lubrication of highly loaded machine elements exemplified by oil impregnated sintered gears; Sub-Project: Tribometry (BMWK 03LB3001A)
• Durability of friction reducing Diamond-like Carbon (DLC) coatings for gears (FVA-Nr. 585/III, IGF-Nr. 21103 N/1)
• Friction of Internal Gears and Heat Balance of Planetary Gears (FVA-Nr. 584/II, IGF-Nr. 20828 N)
• Tribological Simulation of Worm Gear Contacts (DAAD)

 

Calculation and Verification of Transmission Systems

• RIKOR - Transmission Error in Complete Gear System (FVA-Nr. 30/XIII)
• High-Ratio Planetary Gear Sets and Design Space Optimization (FVA-Nr. 421/VI)
• Design and Service Life Increase of Face Gear Drives under the Gearbox Environment Influences (BFS AZ-1601-23)
• Considering the elastic impact of complex wheel body geometries in gear design using the example of RIKOR (FVA-Nr. 30/XII)
• Local force application of bearing contact loads between cylindrical roller bearings and shafts (FVA-Nr. 974/I)
• Sensor-integrating Gear (SIZA) (DFG-Nr. 466653706, SPP 2305, STA 1198/22-1)
• System architecture and modular design of robot-like systems using multidimensional characteristic diagrams (DFG-Nr. 461993234, STA 1198/21-1)
• Contact simulation and condition measurements to determine the lifetime of face gear drives (BFS AZ-1379-19)
• Development and Validation of the Theoretical Basis for the Design of Eccentric Cycloid Gearings (FVA-Nr. 864/I, IGF-Nr. 20549 N/2)

 

Worm and Bevel Gears, Operational Stability

• Gearbox Resource Efficiency Based on Comprehensive Knowledge of the Growth of the Service-Life-Limiting Damage Pitting (DFG-Nr. 538825406, STA 1198/29-1)
• Further development of the load capacity calculation method according to standard method B for bevel gears (FVA-Nr. 49/XVI)
• Determination of Temperature and Power Loss in Worm Gearboxes (FVA-Nr. 503/IV, IGF-Nr. 01IF23240N)
• Computer-aided optimization of the efficiency and load-bearing capacity of worm gearboxes using free-form flank geometries (FVA-Nr. 1024/I, IGF-Nr. 01IF23214N)
• Experimentally validated advancement of calculation methods for the flank fracture load carrying capacity of bevel gears using AI-supported simulation and simplified calculation methods (FVA-Nr. 1028/I, IGF-Nr. 01IF23071N)
• Influence of system deformation and flank topography on worm gear contact pattern (FVA-Nr. 320/IX)
• Scuffing load capacity of worm gears with wheels out of higher strength materials (FVA-Nr. 799/II, IGF-Nr. 22480 N/1)
• Fundamental Investigations on the Geometry and Operating Behavior of High-Ratio Hypoid Gears (FVA-Nr. 967/I, IGF-Nr. 22481 BG)
• Further Investigations on the Consideration of Microgeometry within the Load Carrying Capacity Calculation Methods of the Standard Method B (FVA-Nr. 49/XV)
• Lightweight potential of polymer gears with crossed axles (BMWK 03LB5002)
• Investigation of the Load Carrying Capacity Limits for Pitting and Wear on Wormgears to reduce the Test Duration (FVA-Nr. 920/I, IGF-Nr. 21391 N/1)
• Adaptive Damage Accumulation and Remaining-Service-Life-Prediction for Gearing (DFG-Nr. 448253450, STA 1198/19-1)
• Investigation of the Load Carrying Capacity of Bevel and Hypoid Gears with an Increased Bainite Percentage (FVA-Nr. 513/V, IGF-Nr. 20953 N)

 

Clutches and Electro-Mechanical Drive

• The Performance Loss of e-Drive Lubricants Caused by Water and Iron Particle Contamination in Wet Clutches (FFG-Nr. 872176, K2)

• Characteristics and load limits of immersion-lubricated multi-plate clutches (FVA-Nr. 1017/I)

• Opt4E – Multi-criteria Synthesis and Optimization of Powertrains for Electric Vehicles (DLR)

• Damage Model for the Lifetime Estimation of Wet Multi-Plate Clutches (FVA-Nr. 976/I, IGF-Nr. 22692 N)

• Water and Iron Wear Influence on Wet Clutch Systems (FFG-Nr. 872176, K2)

 

Projects for Teaching

• Leveraging Digital Teaching Potential across Courses (TUM CST)

• Competence- and Requirement-Optimized Teaching Strategy for the Study-Entry- and Study-Phase with Criteria-Based Guideline for Analog, Digital as well as Synchronous or Asynchronous Teaching Approaches and Formats (STMWK Bayern)