Beschreibung
Vorteile und Besonderheiten
Hauptmerkmale
Typische Anwendungen
Komponenten und Aufbau
Messverfahren und -ablauf
Software und Bedienung
Ergebnisse, Datenformate und Schnittstellen
Normen und Richtlinien
FAQ
Description
In the development and production of braking systems, brake pads are of central importance. For both brake simulation during the development process and quality control in production, the dynamic parameters of the brake pads are key characteristics. The measurement-based determination of these dynamic quantities (also referred to as modal parameters) for brake pads is described in SAE J2598.
With the FDT, MAUL-THEET offers a complete system that automatically performs, evaluates and documents these measurements.
With the Frequency and damping test stand, it is also possible to determine the dynamic parameters (natural frequencies and damping values) of other technical components.
Standards and guidelines
Advantages & Innovations
- Cost and time savings thanks to low personnel requirements
- Automated test system for determining natural frequencies and damping
- User-friendly software
- Excitation by automatic modal hammer
- High reproducibility
- Bounce-free excitation
- Non-destructive testing (NDT)
- Vibration measurement with a laser Doppler vibrometer, accelerometer or microphone
- Calculation of attenuation or loss factor according to SAE J2598
- Quality assessment based on the frequency tolerances
- Frequency range up to 100kHz
- Frequency resolution <1Hz at 20kHz
- Project-orientated database structure
- Central SQL database for multiple workstations
- Automatic measurement report generation
- Freely selectable dB values for the attenuation calculation for each natural frequency
- Temperature measurement with optional frequency correction
- DAkkS calibration (DIN EN ISO/IEC 17025) possible
Application & Integration
- Testing of brake components according to SAE J2598, SAE J2933 and VDA 302
- Quality control
- Series testing
- Natural frequency measurement
- Damping determination
- Determination of resonances
- Experimental modal analysis
- Calculation of eigenmodes
- Component tests
- Prototype study
- Structural dynamics
- Product testing
- Material testing
- Research and development
Components
Excitation unit
The broadband excitation is carried out with an automatic modal hammer
- Frequency ranges up to 60kHz
- Impact forces up to 2500N
- High reproducibility
Vibration sensor
The FDT can be operated with the following vibration sensors
- Microphone
- Laser Doppler vibrometer
- Accelerometer
Measurement data acquisition
4-channel measuring system with synchronous scanning
- AC, DC and IEPE coupling
- Anti-aliasing filter
- 24-bit resolution
- Measurement range up to 100kHz
- 100 to 25,600 FFT lines
Windows PC
- Standard or industrial PC, also according to customer requirements, with Windows 10/11
Software
The FDT software controls the entire testing process. It includes user management, the management of test objects, work orders, measurements, analyses, as well as documentation and report generation.
Specification of the test object
- Name and meta data
- dB values for attenuation calculation (0.5 to 3dB)
- Frequency range 1 to 40kHz selectable
- Frequency resolution (number of FFT lines) selectable
- Frequency bands and permissible tolerance ranges
Measuring sequence according to a task
- Series measurement
- Repeat measurement
Automatic measurement procedure
- Triggering the automatic modal hammer
- Measurement of the excitation force and the vibration response
- FRF averaging
- Peak picking, attenuation calculation and quality assessment
Report creation and output of results for each job as a table
- Printer, PDF, Excel, CSV, etc.
What we can do for you
In addition to manufacturing and supplying standard measurement systems for determining natural frequency and damping, we design, plan, and develop customized solutions tailored to your requirements. We are also happy to perform the measurements for you as a service.
Please contact us—we will be happy to provide you with a quote.
Videos
You are currently viewing a placeholder content from YouTube. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More Information