Spring Mass Vibration System | Vibrano X – 09
The Spring Mass Vibration System – Vibrano X – 09 is a bench top unit for analyzing oscillations of a spring mass system. It features a helical tension spring with a frequency range of 2…7Hz, running on a precision bearing cradle along vertical guides. This Spring Mass Vibration System supports free and damped oscillation testing using an oil damper with a damper constant of approx. 15…300Ns/m. Cradle motion is recorded on a driven drum recorder using 100mm graph paper, with calibrated weights included to vary oscillating mass.
The Spring Mass Vibration System – Vibrano X – 09 is a bench top mounted unit to analyze the oscillations of a spring mass system. The sturdy bench top base secures two vertical guides in a vertical plane. This Spring Mass Vibration System supports both free and damped oscillation testing.
Product Overview
The apparatus is a bench top mounted unit to analyze the oscillations of a spring mass system. The sturdy bench top base secures two vertical guides in a vertical plane. A top horizontal bracket keeps the bars at a near constant width.
The near constant width aids the running of a cradle which runs up and down the bars. The cradle runs on precision bearings, which creates minimal friction. The cradle attaches to one end of a helical tension spring of known wire diameter, free length, and spring rate. At the other end of the spring, an adjustable screw mechanism adjusts the length of the spring and hence its starting position.
The cradle has its own self weight, but additionally a number of calibrated weights can be added to the cradle in order to vary the oscillating mass. The cradle vertical motion is transferred to a rotating drum recorder mounted with paper.
The oscillations of the cradle can be free or damped. The damped option requires the damper to be attached to the cradle. This Spring Mass Vibration System performs vibration testing of a helical tension or extension spring using calibrated weights and adjustable damping.
Spring Mass Vibration System – Vibrano X – 09, Technical Specifications
| Specification | Detail |
|---|---|
| Application | Apparatus to perform vibration testing of helical tension or extension spring (Spring Mass Vibration) |
| Spring Mounting | Tension spring suspended from bench top frame |
| Mass Variation | Suspended mass variable using calibrated weights |
| Spring Adjustment | Start position of spring adjustable |
| Cradle Motion | Mass cradle runs along vertical guides |
| Bearing System | Low friction bearings based system |
| Recording | Oscillations of cradle transferred and captured using driven drum recorder |
| Oscillation Modes | Free and damped |
| Damping | Created using oil damper |
| Manual | Comprehensive technical manual |
| Weights | Set of calibrated slotted weights included |
Technical Data
Spring
| Parameter | Value |
|---|---|
| Spring Frequency | 2…7Hz |
| Spring Constant | Approx. 1.5 to 1.9N/mm |
| Spring Length | 250mm |
| Spring Adjustment Travel | 200mm |
Carriage
| Parameter | Value |
|---|---|
| Carriage Weight | Approx. 1.25kg |
| Additional Weights | 5x 2kg |
Oil Damper
| Parameter | Value |
|---|---|
| Damper Control | Freely adjustable |
| Damper Constant | Approx. 15…300Ns/m |
| Damping Medium | Hydraulic oil |
Recorder
| Parameter | Value |
|---|---|
| Recorder Drive | Synchronous motor |
| Paper Speed | 20mm/s constant with 50Hz operation |
| Paper Width | 100mm graph paper |
Key Features
- Core Function: this Spring Mass Vibration System analyzes oscillations of a spring mass system
- Base Structure: sturdy bench top base with two vertical guides in a vertical plane
- Cradle System: runs on precision bearings for minimal friction along vertical guides
- Spring: helical tension spring, frequency 2…7Hz, spring constant approx. 1.5 to 1.9N/mm, length 250mm
- Spring Adjustment: adjustable screw mechanism, travel 200mm
- Mass Variation: calibrated weights, carriage weight approx. 1.25kg, additional weights 5x 2kg
- Oscillation Modes: free or damped, damper attaches directly to cradle
- Damping System: oil damper, freely adjustable, damper constant approx. 15…300Ns/m, hydraulic oil medium
- Recording: driven drum recorder, synchronous motor drive, paper speed 20mm/s at 50Hz, 100mm graph paper
- Documentation: comprehensive technical manual included
- Accessories: set of calibrated slotted weights included
Experiments
- Determination of the spring stiffness of a helical tension spring (Hooke’s Law)
- Natural frequency of oscillations of an undamped spring mass system
- Variation of mass on the oscillations of the spring mass system
- Determination of the amount of damping in a spring mass system
- Influence of damping on the oscillations of the spring mass system
Construction and Design
The Spring Mass Vibration System – Vibrano X – 09 is built on a sturdy bench top base that secures two vertical guides in a vertical plane. A top horizontal bracket keeps the bars at a near constant width. A cradle runs up and down the bars on precision bearings, which minimize friction.
The cradle attaches to one end of a helical tension spring of known wire diameter, free length, and spring rate. At the other end of the spring, an adjustable screw mechanism sets the spring’s starting position. The cradle carries its own self weight, and calibrated weights can be added to vary the oscillating mass.
The cradle’s vertical motion is transferred to a rotating drum recorder mounted with paper. Oscillations of the cradle can be free or damped, with the damped option requiring the damper to be attached to the cradle. This Spring Mass Vibration System uses a low friction, bearing based cradle assembly to ensure accurate oscillation measurement.
Scope of Delivery
- 1 experimental module
- 1 set of spring
- 1 set of weight
- 1 instruction manual
Q: What does the Spring Mass Vibration System – Vibrano X – 09 analyze?
A: It analyzes the oscillations of a spring mass system, including spring stiffness, natural frequency, and damping behavior.
Q: What is the spring frequency range?
A: The spring frequency range is 2…7Hz.
Q: How is the oscillating mass varied?
A: The oscillating mass is varied by adding calibrated weights to the cradle, which has a self weight of approx. 1.25kg, plus 5x 2kg additional weights.
Q: How does the damping system work?
A: Damping is created using an oil damper with a freely adjustable damper constant of approx. 15…300Ns/m, using hydraulic oil as the damping medium. The damper must be attached to the cradle for damped oscillation testing.
Q: How are oscillations recorded?
A: Cradle motion is transferred to a driven drum recorder with a synchronous motor drive, running at a paper speed of 20mm/s on 100mm graph paper.
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