Ship Vibration Apparatus | Vibrano X - 11
Product Overview
The Ship Vibration Apparatus - Vibrano X - 11 enables investigation of hull resonance phenomena using a plastic model ship with an elliptical plan form. It features an electrodynamic exciter with a frequency range of 5...13000Hz and a function generator producing sinusoidal, triangular, and rectangular signals. This Ship Vibration Apparatus includes an acceleration sensor, oscilloscope display, and a flotation tank for testing in both air and water. Ballast and additional masses are included to study their influence on natural frequency and mode.
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Technical Specifications
Ship Vibration Apparatus - Vibrano X - 11, Technical Specifications
| Specification | Detail |
|---|---|
| Application | Apparatus designed to enable students to investigate a simple model hull form for resonance phenomena |
| Frame | Frame with height adjustable cross beam |
| Cross Beam | High natural frequency due to closed box beam section with high rigidity and low weight |
| Model Ship | Plastic, flat bottomed, wall-sided and open topped, elliptical plan form, length to beam ratio 8:1 |
| Length to Depth Ratio | 12:1 |
| System Components | Experimental model hull, rigid supporting frame, vibrator (complete with signal generator and power amplifier), flotation tank |
| Acceleration Sensor | With measuring amplifier |
| Exciter | With power amplifier and function generator: sinusoidal, triangular or rectangular signal |
| Display | Measuring values displayed on an oscilloscope |
Technical Data
Exciter
| Parameter | Value |
|---|---|
| Type | Electrodynamic type with permanent magnet |
| Max. Force | 20N or Higher |
| Frequency range | 5...13000Hz |
Function Generator with Power Amplifier Unit
| Parameter | Value |
|---|---|
| Adjustment | Frequency, amplitude and offset adjustable |
| Output | 0...10Vpp, 50Ohm |
| Output Signal Types | Sine, Square and Triangle |
Acceleration Sensor
| Parameter | Value |
|---|---|
| Measuring range | +/-10g |
| Frequency range | 0...2000Hz |
Model Ship
| Parameter | Value |
|---|---|
| Deck Stringer | With fastening holes for sensors and suspension |
Key Features
Key Features
- Core Function: this Ship Vibration Apparatus investigates hull resonance phenomena and dynamic ship structure behavior
- Frame: height adjustable cross beam, closed box beam section, high rigidity, low weight
- Model Ship: plastic, flat bottomed, wall-sided, open topped, elliptical plan form, length to beam ratio 8:1, length to depth ratio 12:1
- Exciter: electrodynamic type with permanent magnet, max. force 20N or higher, frequency range 5...13000Hz
- Signal Generation: function generator with power amplifier, sinusoidal, triangular and rectangular signals, adjustable frequency, amplitude, and offset
- Signal Output: 0...10Vpp, 50Ohm
- Acceleration Sensor: measuring range +/-10g, frequency range 0...2000Hz
- Water Testing: flotation tank supplied for experiments in water
- Display: measuring values shown on an oscilloscope
- Analysis Scope: supports comparison of theoretical and measured natural frequency values
Experiments
- Measurement and recording of natural frequencies and modes of the model ship (in air)
- Influence of discrete additional masses or ballast on natural frequency and mode (ballast and additional masses included)
- Vibration behavior of model in air
- Vibration behavior of floating model
- Comparison of theory (approximation formula for determination of first bending natural frequency) and practice (measured natural frequency)
Construction and Design
The Ship Vibration Apparatus - Vibrano X - 11 consists of a rigid supporting frame with a height adjustable cross beam. The cross beam has a high natural frequency due to its closed box beam section, which combines high rigidity with low weight, ensuring the beam does not interfere with measurements. The model ship and an electrodynamic exciter are attached to this cross beam.
The model ship is made of plastic, with a flat bottomed, wall-sided, and open topped elliptical plan form. It has a length to beam ratio of 8:1 and a length to depth ratio of 12:1. The deck stringer includes fastening holes for sensors and suspension.
A function generator with a power amplifier creates sinusoidal, triangular, or rectangular exciter signals, with adjustable frequency, amplitude, and offset. An acceleration sensor measures the model's response to vibration at various points, with results displayed on an oscilloscope. This Ship Vibration Apparatus includes a flotation tank for conducting experiments in water in addition to tests in air.
Scope of Delivery
- 1 experimental module
- 8 springs
- 1 electrodynamics exciter
- 1 Function generator with power amplifier
- 1 multimeter
- 1 oscilloscope
- 1 oil damper with clamping device
- 1 acceleration sensor with amplifier
- 1 control box
- 1 water tank
- 1 set of dead weights
- 1 storage tray
- 1 instruction manual
Standards & Compliance
- Manufactured under ISO 9001:2015 Quality Management System
- CE Marking - European Conformity where applicable
- Supplied with calibration certificate, operation manual, and experiment guide
- 12-month manufacturer's warranty (parts & labour from installation)
Ordering & Delivery
- Incoterms: CIF to destination seaport, FOB Mundra/Nhava Sheva, or Ex-Works Ambala
- Lead time: 3–5 weeks production + sea transit to destination
- Payment: LC (Letter of Credit) or T/T bank transfer against proforma invoice
- Documentation: commercial invoice, packing list, bill of lading, certificate of origin, insurance certificate
Frequently Asked Questions
Q: What does the Ship Vibration Apparatus - Vibrano X - 11 investigate?
A: It investigates hull resonance phenomena and the dynamic behavior of a ship structure, including natural frequencies and vibration modes.
Q: Can this apparatus be used for both air and water testing?
A: Yes, the model may be suspended in air or used with the flotation tank supplied with the apparatus for testing in water.
Q: What is the model ship's plan form and dimensions?
A: The model ship has an elliptical plan form with a length to beam ratio of 8:1 and a length to depth ratio of 12:1.
Q: What signal types can the function generator produce?
A: The function generator produces sinusoidal, triangular, and rectangular signals, with adjustable frequency, amplitude, and offset.
Q: What is the frequency range of the exciter and acceleration sensor?
A: The electrodynamic exciter operates across 5...13000Hz, while the acceleration sensor covers a frequency range of 0...2000Hz.