Simulation Results of a Finite Element Discbrake

The finite element model describes an academic representation of a heated discbrake. It is implemented in the commercial simulation software Abaqus. It is composed out of one layer of 60 elements resulting in a total of 146 nodes with 7 degrees of freedom each. It is clamped at four nodes which leads to a total number of DOFs of 998.

In each simulation, heat is transferred to the disc through a heat input area consisting of nine nodes. For each scenario, a constant heat flux 5e6 +- 4.99e6 W/m^2 is applied as input. At the same time we vary its material properties in form of the disc's heat conductivity coefficient around 46.5+- 40 W/mK, and the density around 7850+-1000 kg/m^3.

Each simulation covers the time interval [0, 3] s and the corresponding simulation results are exported with a sampling time of 1 ms resulting in 3001 time steps per simulation. The initial conditions are set to 0. For each simulation, quasi-random parameter vectors are sampled using Halton sequences.

The exported simulation results consist of the displacements and the temperature. To account for the usual second-order structure of mechanical systems, we further extend the state vector with the velocities by using a second-order central differences scheme on the displacements.

Content

Model: Input files and scripts to run and read the simulation

'discbrake.inp' input files for the FE simulation software Abaqus containing the model description 'runAbqSim_onlyHeat_1Point_smallHalton.m' script to run simulation 'write_odb_to_txt.m' export odb files as txt 'utils/' utility scripts to run simulations and export results

Dataset (discbrake.npz)

system states (X) containing node temperatures and displacements, [n_sim x n_timesteps x n_nodes x n_dofs] time (t), [n_timesteps x 1] input (U) [n_sim x n_timesteps x 1] simulation parameters (Mu) [n_sim x 2]