Vibrosim
Method for evaluating the vibration transmission behavior of mobile earth-moving machines by modeling and simulation
| Funding: | AiF – German Federation of Industrial Research Associations IGF - Industrial Collective Research |
| Funding code: | IGF number: 17027 BR |
| Duration: | 09/2012 - 10/2015 |
| Contact: | Erik Frenzel |
Questions regarding the ergonomic properties of mobile earth-moving machines are becoming increasingly important due to the striving for ever higher productivity. At the same time, medical examinations show that increased exposure to human vibrations can lead to health damage. For this reason, the machine directive 2002/44 / EG specifies limit values for vibration exposure.
From the point of view of the machine developer, compliance with these limit values has so far only been able to be demonstrated by extensive tests on prototypes. A reduction in both the development effort and the business risk can be achieved by using virtual product development methods. The actual “weak point” when using these tools is often the lack of knowledge about the modeling of machine behavior and work processes.
The main focus of the project was:
- Investigation of the method using three machines and two processes
- Determination (measurement) of excitation spectra, which affect the machines through various processes
- Measurement data evaluation
- Definition and description (modeling) of interface elements
- Determination of parameters of the interface elements
- Simulation technology
- Knowledge of the suitability of the approach in the form of simulation results
The "Vibrosim" project gave developers of mobile earth-moving machines a set of guidelines that can be used to answer a large number of questions relating to vibration transmission behavior.
