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See FISITA Library items from Sven Brandt




Mr. Sven Brandt, TU Braunschweig, GERMANY

Mr. Malte Sandgaard, TU Braunschweig, GERMANY

Dr.-Ing. Sebastian Gramstat, Audi AG, GERMANY

Mr. Frank Stebner, Volkswagen AG, GERMANY

Mr. Conrad Weigmann, Volkswagen AG, GERMANY

Prof. Dr.-Ing. Arno Kwade, Institute of Particle Technology, GERMANY

Prof. Dr.-Ing. Georg-Peter Ostermeyer, TU Braunschweig, GERMANY

Prof. Dr.-Ing. Carsten Schilde, Institute of Particle Technology, GERMANY

The increasing degree of electrification as well as the optimization of particle based exhaust emissions, which is already being driven forward due to legislation, will direct the focus of fine dust considerations in automotive technology to non-exhaust emissions. In contrast to exhaust emissions, there are currently only a few vehicle-related limit values or uniform standards in measurement technology and the measurement procedure. The area of non-exhaust emissions includes tire abrasion, the turbulence of organic and inorganic road particles, and brake wear. Since, in addition to the material component, the particle size also has a significant influence on the health hazard of the material, particulate emissions from brakes are often directly related to health effects.

In comparison to previous measurements, which have mostly been carried out in enclosed and clinical environments, the dynamics of the fine dust emitted from the brake will be investigated using a fully automated tribometer and used as a possibility to validate a DEM simulation. Besides the pure measurement of the emitted particle size distributions during the brake application, conclusions on the agglomeration behaviour of the emission particles in the environment shall be drawn. The aim is to predict the environmental impact and the potential danger of the particles to humans due to the particle size released into the environment. The pin-disc contact between brake pad and brake disc serves as the emission source. A coupled CFD-DEM simulation environment was set up to simulate particle dynamics. Based on a rotating brake disc model, the flow-relevant components of the test bench environment were implemented into the simulation setup. The area around the actual brake contact as well as the environment at the tribometer should be considered. For the metrological validation of the simulation, a swarm of calibrated low-cost sensors as well as a scattered light based particle size measuring device will be set up around the tribometer.

EuroBrake 2021





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Sven Brandt studied mechanical engineering in cooperation with the BASF Polyurethanes at the PHWT Diepholz and later switched to the Technical University Braunschweig for the master degree. After graduation, he began as a research assistant in the particle simulation working group under Prof. Dr. Schilde and Prof. Dr. Kwade at the Institution for particle technology at the TU Braunschweig. Since then, he dealt with the topic brake emission, including the measurement and coupled CFD-DEM Simulation of airborne particles.


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