- Civil Lab Mechanical Lab Engineering Lab Equipments
- sales@didacticlabequipments.com
CAT NO: DIDACTICNLE-Export-058004
Vibration Of A Spiral Spring- Engineering Lab Training Systems.
Features
Low cost, effective teaching.
Self-contained.
Wall mounted.
Measurement of oscillation frequency.
Demonstration of Hooke's law for torsional spring.
Comparison with theoretical predictions.
Three year warranty.
Range of Experiments
To compare the experimental stiffness of a plane spiral spring with theoretical predictions.
To observe if the spring exhibits a linear elastic behavior.
Description
Spiral
springs are used to provide a restoring torque to an oscillating shaft
when it rotates through an angular displacement. They exhibit similar
stiffness characteristics to linear springs, except that the effect is
one of torque rather than force. The stiffness of a spiral spring
depends on its physical dimensions and the rigidity of the steel strip
from which it is formed. The student can easily calculate the
theoretical simple harmonic motion of the spring, and compare the value
with simple experimental results. A range of moments of inertia of the
oscillating part is provided.
The wall mounted unit consists of a
spiral spring coiled from a length of 25 x 0.6mm steel strip to give an
effective length of 2 metres, attached to a shaft mounted in ball
bearings. A cord carrying a weight hanger is wound round the shaft, and a
load applied to twist the spring. Spring deflection is measured with an
attached 360° scale. A cord and weight hanger are supplied. A set of
discs which can be attached to the shaft change the frequency of
oscillation, measured by the stop watch provided.
This equipment
is part of a range designed to both demonstrate and experimentally
confirm basic engineering principles. Great care has been given to each
item so as to provide wide experimental scope without unduly
complicating or compromising the design. Each piece of apparatus is
self-contained and compact. Setting up time is minimal, and all
measurements are made with the simplest possible instrumentation, so
that the student involvement is purely with the engineering principles
being taught. A complete instruction manual is provided describing the
apparatus, its application, experimental procedure and typical test
results.
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