Vibrational Equivalent Rig Model Development
In this case, the dynamics characteristics (Frequency Response Functions) of the test rig measured by physical test transforms to equivalent vibrational FE model with some constrains. Furthermore, conducting simulation by combining the dynamics characteristics of the rig FE model and the brake disk FE model improves accuracy of the simulation substantially.
In order to improve the accuracy of simulation model, it is necessary to build a model of test rig, however, it takes quite some time and man-hour to create FE model and validate its accuracy if drawings or CAD data of the rig is difficult to obtain.

In this case, the dynamics characteristics (Frequency Response Functions) of the test rig measured by physical test transforms to equivalent vibrational FE model with some constrains. Furthermore, conducting simulation by combining the dynamics characteristics of the rig FE model and the brake disk FE model improves accuracy of the simulation substantially.

By omitting the modeling of parts for which detailed information is unknown and utilizing the equivalent vibration model obtained from the experiment, it is possible to significantly shorten the model creation period and improve the accuracy of the model and perform CAE effectively.

ESTECH is continuously striving to develop technologies and solve engineering problems to help clients by combining physical test and computer simulation.
Application Examples
- Dyno for Powertrain
Please feel free to contact for cases other than the above.
Example of measurement and analysis system configuration
Software
- PULSE Labshop (Online Real-time Analysis Software)
- ESTECH.Rmotion (Rigid Motion Identification Tool)
Hardware
- LAN-XI (Measuring Front-End)
- Electromagnetic Exciter
- Impact Hammer
- Tri-axial accelerometer
In addition to conducting test projects, the company proposes and provides the best fit test hardware and software configuration to satisfy clients demand and requirement.