Load Data – Analysis and Simulation


About once a year, our department offers a three-day seminar on the topic of »Load data – analysis, design and simulation«. The event is aimed at the target group of calculators and test engineers, among others. This seminar is held in German.



Dynamic loads occurring in the field play a central role in the development of mechanically stressed systems. A good understanding of the operating loads is crucial for a design with regard to functional properties such as strength and vibration behavior.

This begins with the measurement of operating loads under representative conditions. A statistical description of the loads takes into account the scattering of stresses during operation. With the help of analysis methods in the time, frequency and amplitude range (e.g. rainflow method), reproducible design loads are defined that have a quantified relationship to the stress in the field. These design loads - usually multi-dimensional load-time curves - are the input variables for both test bench tests and CAE simulations.

The task of FE and MBS analysis is to correctly map the force flows from system loads to bearings and components through to local stresses in the components. Today's simulation methods and computer performance also allow this for multi-dimensional transient load-time curves. In this way, functional properties such as vibration comfort and operational stability can be analyzed and optimized before a prototype is available for measurement. The CAE simulations also help to optimally configure component tests, shorten test times and simplify tests.


Fraunhofer ITWM, Fraunhofer-Platz 1, 67663 Kaiserslautern


The participation fee is € 1950 and includes the conference documents as well as lunch and drinks;

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If you are interested in an in-house seminar, please do not hesitate to contact us.


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The seminar schedule is usually as follows. Changes will be announced on the event page of the current seminar.

  • Basics of load data analysis
  • Load data and fatigue strength of components
    • Load data and mechanical systems
    • Wöhler tests, Palmgren-Miner rule
    • Stress-strain hysteresis and the local concept
  • Data analysis methods in the time and amplitude domain
    • Rainflow, derived classification methods
  • Multidimensional load data analysis
  • Stochastic loads and analysis methods in the frequency range
    • Fourier transform, PSD, filter
    • System analysis and transfer functions
  • Use of vehicle-independent data – VMC
  • Dimensioning against variable operating loads
  • Derivation and synthesis of measurement bases
  • Statistical analysis of stress data using factor models
  • Creation of test scenarios – optimized route/load case mix
  • Planning and evaluation of measurement campaigns – project examples
  • Evaluation of field observations – project examples
  • Basics of multi-body simulation (MBS)
  • Invariant stimuli – digital road and tire simulation
  • Modeling and simulation of road profiles
  • Finite elements – from internal loads to local variables
  • Flexible bodies in the multi-body simulation
  • FE – based service life calculation
  • Shortening and simplification of fatigue strength tests