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ROTEC · Measurement applications
Hybrid and combustion drivetrains
Combine multi-channel rotational speed measurements with acceleration and sound pressure to investigate drivetrain dynamics and acoustics.
Measurement task and objective
Investigate dynamic and acoustic problems and resonances in hybrid and internal-combustion drivetrains. Measurement results support drivetrain design and noise-reduction work.
Time-domain analysis
- Dynamic angles of twist in drivetrain components.
- Shaft torsion.
- Shock loads during load changes.
- Drivetrain stiffness.
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Spectral analysis
- Dynamic excitation.
- Behaviour of vibration dampers and coupling systems.
- Resonances of the overall system.
- Changes in natural frequencies with environmental conditions.
- Dynamic peak loads.
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Acoustic analysis
- Identify noise sources.
- Detect component resonances.
- Apply specialised software functions for transmission analysis.
Dynamic drivetrain design
Torsional excitation, mass moments of inertia, stiffness and damping all influence drivetrain dynamics. Their interaction can produce resonances and affect component loading and service life.
Some parameters also vary with environmental conditions. Investigating the interaction between components supports development work on clutches, gearboxes and drive shafts, including noise reduction.
Multi-channel speed and vibration measurement
Magnetoresistive and laser sensors measure rotational speed at points such as the propeller shaft, drive shafts, clutches, electric motors and gearboxes. The source diagram identifies these locations with labels including KW, AW, K0/K1 and E0–E4.
Combining speed measurements with analogue signals such as acceleration and sound pressure provides a broader view of drivetrain vibration. Time-domain and spectral evaluation also support acoustic analysis.
Questions and answers
What is RAS, and what does the ROTEC rotational analysis solution include?
The ROTEC Rotational Analysis System (RAS) is used to analyse rotating components in mechanical engineering, automotive development, power generation and motorsport. It combines high-resolution counter-based acquisition with an angle-based approach to rotational speed measurement and analysis.
The measurement chain includes optical and magnetic speed sensors, signal-conditioning adapters, the modular RASdelta measurement system and specialised measurement and analysis software. The angle-based approach can help identify sensor vibration and other measurement influences during evaluation. ROTEC ENGINEERING supports demanding measurement tasks.
Can the measurement system and software be configured for a specific application?
RASdelta is a modular measurement front end. The source describes configurations with 8 or 16 measurement cards, selected to suit the measurement task. RAS software provides tools for analysing rotating components and complex systems without requiring users to write their own measurement or analysis programs.
ROTEC ENGINEERING can advise on application-specific measurement questions and the selection of a suitable configuration.
Does ROTEC also provide engineering and project support?
Alongside sensors, signal conditioning, data acquisition and analysis software, ROTEC provides engineering and consulting services. These include measurement-point design in CAD, component machining, sensor installation and calibration, measurement execution, data evaluation and presentation of results.
Project support can cover individual work packages as well as a wider measurement project, according to the agreed scope.
Is training available for commissioning and using a measurement system?
ROTEC offers its Training Week in German and English as well as application-specific user training. Training can combine measurement principles, a detailed introduction to the software and practical demonstration measurements in the user’s environment.
Support is also available when commissioning a new system and becoming familiar with the settings and functions of RAS software.
How can users access support and self-help information?
The Munich sales and support team serves Central Europe, supported by local partners in other markets. Partners assist with measurement technology, first-level support and sales enquiries.
ROTEC also provides a knowledge base with registration-based access to information on topics including torsional vibration, transmission error and valve train analysis. Contact the team to discuss the appropriate support route for your application.
Discuss your measurement task with ROTEC
ROTEC ENGINEERING supports measurement-system selection, installation, testing and evaluation to suit your application.
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