Steinbeis Transfer Center Technical Acoustics and Applied Numerical Analysis

Services

  • Technical diagnostics
    • Technical acoustics (vehicle manufacturing, machine oscillation, vibration testing, system characteristics, fault finding and prediction
  • Environmental acoustics
  • Applied numerics and signal analysis (software planning and development)
  • Technical application of tomographic processes
  • Project-based expert reports for technical, physical and environmental acoustics
  • Programming in MATLAB
    • Measurement
    • Algorithms
    • Data visualization
    • Report writing
    • Consulting and supervision of software projects in MATLAB
    • Continuing professional development in MATLAB programming

Key Areas

  • Digital signal processing
    • Time frequency analysis
      • Advanced spectral analysis
      • Wavelet behavior
      • Signal classification
  • Development and implementation of new diagnostic processes
    • Technical diagnostics focusing on technical acoustics, mechanical vibration, airborne sound, system properties, environmental acoustics
  • Automatic fault detection and classification
  • Linking of measurement systems to MATLAB, development of measurement procedures and diagnostic projects involving MATLAB
    • Multi-channel measuring systems (data acquisition and sensors)
    • Algorithms for multi-channel systems
  • Design and development of tomographic systems relating to technical issues
  • Development of measurement techniques

Project Examples

Advanced time-frequency signal processing applications

Vibrations and acoustic signals often provide a clue about the technical condition of a system or the nature of a fault. These clues are frequently hidden, however, and it is not usually possible to evaluate their true meaning by conventional means. With many projects, where the aim is to evaluate the condition of a particular system (typically something like a car transmission), the aim is to extract this hidden information in order to be able to interpret it. Priority is given to the observation of moving parts and complex signal patterns. Ideally, the process is carried out in a realistic production setting. To carry out the assessment, modular software is used with the fundamental aim of expanding the analysis to other areas. By exploiting the full potential offered by advanced methods and combining time-frequency analysis with techniques for classifying events and error categories, there are major opportunities to gain a deeper understanding of damage and monitoring processes.


Development of tomographical processes aimed at analyzing the changing state of fluid systems

The aim in this field is to map temperatures and flow patterns in fluid systems by using tomographical techniques based on acoustics. The contact-free, remote measurement of fluid properties holds tremendous potential from a technical view point, especially when approached methodically. A particular advantage with this approach is that the objects undergoing examination cannot be influenced by sensors in the field of measurement because all testing is carried out remotely. The method used is also uniquely scalable. This makes it possible to investigate and monitor many different types of objects. We are currently working on techniques for assessing problems in internal climate control (temperatures and flow areas in all kinds of enclosed areas). Another important area where this approach can be applied is process monitoring.

 

Environmental research

Pollution of the environment and human habitats is one of the major challenges of our time. There have been many investigations into the effect of individual kinds of pollution, but little has been said about how all the influences, in combination, will effect the environment in the long term. As a result, a methods-based project was started to develop and test ways to correlate the discernible effect of fine particle pollution in combination with noise pollution. The aim was to classify pollutant sources by using the acoustic recognition of emissions.


MATLAB Seminar

The Steinbeis Transfer Center has organized a series of regular seminars on the use of MATLAB as a means of computerized analysis, not just for training purposes, but also to demonstrate different ways to draw on and define overlaps in the process of technology transfer. At regular intervals, the power of the concept is also demonstrated at invitation-only talks.

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http://www.stw.de/su/852

Contact

Ehrenbergstr. 60, D-98693 Ilmenau
Phone: +49 34298 30593
E-mail: SU0852@stw.de
Margarethenweg 9a, D-04425 Tauchau
Management: Prof. Dr. Peter Holstein

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