Earthquake Simulation Systems
The Servomotor-based earthquake simulation system is a bench-scale single-axis earthquake simulator ideal for teaching structural dynamics, vibration isolation, and topics related to earthquake and vibration engineering. Users can define various motion types to study behavior under different acceleration spectrums. With actual acceleration profiles of real earthquakes from the PEER database, students can study their effects on buildings, bridges, and various materials.
Educational Benefits
Students learn how to:
- Validate structural models with respect to FEM results
- Understand the behavior of models visually
- Calculate bandwidth curves based on imposed limits
- Get an idea of vibration dampers and isolators
- Analyze the effects of padding/stiffeners on structures
System Features
- Single-axis or dual-axis operation
- Integrated safety features and limits
- Supports scaling and playback of earthquake data
- Ball-screw mechanism for robust actuation
- Easy integration of user-built structures
- Standalone software or highly-flexible operation and control design using control software.
- Fasma signal analyzer system provides reliable and precise measurements for vibration monitoring and analysis applications.
Main Features & Specifications
Vibration Analysis System
- Static and Dynamic acceleration measurement
- Velocity and Displacement processing
- USB 2.0 interface for communication
- Real-time data display in Time and Frequency Domain
- User friendly GUI for control and configuration of the system parameters
- Simultaneous display for all vibration parameters
- 16/12/8/4 Channel - Data Acquisition system provides connectivity up to five triaxial accelerometer measurements
- Embedded DSP engine for high performance
- Compact, rugged design holds up to any plant environment
- Excellent protection for input supply upto 32 V and high immunity to external noise
- Expansion connectors for mixed signal and Digital I/O functionality
Specifications
Peak Acceleration: +/- 3.2 g
Digital Architecture: 16 bit, DSP MAC based
Sampling Frequency: 1KHz - 100KHz
Antialiasing Filter: 3rd order Butterworth
Analog Bandwidth: DC-100 Hz (extendable)
External Digital I/O: 8-16 (optional PWM)
Input Coupling: DC
Supply standard: 8-12V DC input
Max input voltage: 3.3V
Noise performance: ~4mV at FSR
ADC Dynamic Range: 12-16 bits
Communication: USB 2.0
Acceleration Res.: 10 mg
Reference Clock: Internal/External option
Frequency Res.: 0.05Hz
Components of the System
- Sensors: Single Axis, Dual Axis, and Triaxial
- Data Acquisition Unit: 4, 8, 12, or 16 channel options
- Direct AC input power options for benchtop applications
- Linear power supply Adapter
- LabVIEW or C++/Java based application software
- Acceleration Range options such as 3g, 10g and 100g approx.
- Laptop with Kampana Software installed
Note: Customization of software and hardware is available based on user requests and feasibility.
Kampana Software
This application acts as the User Interface to the Data Acquisition hardware. All control, processing, and archival is done using this application.
Key Software Functions
- Configure all input channel settings and load/save multiple hardware configurations.
- Data backup with time stamping for Archival.
- Time/Trigger/Event based data acquisition options.
- User programmable Digital Filter settings.
- Offline data plotting and analysis, including FFT operations.
- Open recorded data and view in tabular format for further analysis.
- External clock reference option for precise timings and phase locking.
- Selection for plotting data in time or frequency domain.
- Spectral Plot of up to 500Hz frequency range with a resolution of 0.05Hz.
- Real-time parameter value displays for Acceleration, Velocity, and Displacement.