Simulative Investigation of Wheel Brakes in Terms of the Anchor Load and Pad Movement Technische Universität Darmstadt

Format:

Conference/Event

Author/Creator:

Haag, Haag, author.

Contributor:

Fan, Junli

Simon, Dirk

Ungethuem, Ulrich

Winner, Hermann

Conference Name:

SAE 2011 Annual Brake Colloquium And Engineering Display (2011-09-18 : New Orleans, Louisiana, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

In the research project between the Institute of AutomotiveEngineering (FZD) of the Technische Universität Darmstadt (TUD) andContinental Teves AG and Company oHG a new modeling concept has beendeveloped. With the aim to enhance the current development process,the brake caliper is modeled based on coupled rigid bodiesintegrated into a nonlinear system model. Using an explicitinterface definition, the number of degrees of freedom is minimizedand the calculation of caliper performance is possible over a widerange of parameters. Compared to models based on the Finite ElementMethod (FEM), fully parameterized geometry from CAD is notnecessary, thus the caliper can be optimized for a variation of itsgeometrical and physical parameters. With this modeling approach,typical performance criteria such as caliper fluid displacement,hysteresis, uneven pad wear and residual torque can be calculatedin a virtual bench test. Additionally, the pull-push-characteristicand the tendency towards radial pad movement can be assessed. Theresults are generated before assigning the design parameters in CADand are suitable to achieve frontloading in the developmentprocess. In this paper, the basic approach and the experimentalvalidation regarding the force distribution between inner and outerpad and also the radial pad movement are described. For thevalidation a high-performance flywheel-dynamometer is used. Thetangential load and the pull-push-characteristic are measured withstrain gauges on the anchor arms. The inductive linear displacementsensors gauge the radial pad movement. The results show thedevelopment process of radial pad movement over time and thesensitivity of different parameter variations

Notes:

Vendor supplied data

Publisher Number:

2011-01-2383

Access Restriction:

Restricted for use by site license