January 8, 2019


Aim: To determine the moment of inertia of a bifilar pendulum and verify the Procedure: Suspend the rectangular block or (bifilar pendulum) from plane (a b) . Oscillation of a bifilar suspension Apparatus: Two retort stands/clamps/ bosses, two metre rulers, stop watch, two lengths of cotton thread. two threads. ME DYNAMICS OF MACHINERY LABORATORY EXPERIMENTS BIFILAR SUSPENSION INTRODUCTION The Bifilar Suspension is a technique that could .

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With the bar suspended by the wires, the length L was adjusted bidilar a convenient extent and then distance, bbetween the wires was measured. However, Introduction of the two equal masses into the bifilar suspension system can gives rise to a modification of its mechanism and the equation of the angular motion.

007 The Bifilar Suspension

This is called the auxiliary mass method but for this experiment, our analysis would be on just the generic bifilar suspension approach.

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Science Lab Equipment in Ambala. Get in Touch with us S. Bifilar Suspension Get Latest Price. Abstract The full nonlinear equations of motion of a bifilar pendulum are derived without the aid of simplifying assumptions about the bifllar of the suspension or the inertia properties of the suspended body.

Please enter your name. Density of the bar steel bar. In addition an enclosed-type measuring tape and weight balance were also used for the experiment. In this situation the length of the wires are kept constant and the distances between the two equal masses are varied. Otherwise, we’ll assume you’re OK to continue.

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The periodic time significantly increased when the length of the wires also go increased. Nonetheless, a description of its angular motion is enumerated below. Two examples of practical interest are discussed.

Bifilar suspension

Length of bar l. Mass of the bar m. Measurement taken from the rule and the weight balance was done such that the line of sight and the markings of the measuring equipments were in alignment in to reduce errors due to parallax. Get Access Get Access. Script The script for this experiment nifilar be found in the lab script book or on DUO.

Known for their features like durability, high performance, perfect finish, easy to use and less maintenance, these products are highly demanded in the market. Then step 3 was repeated but with different values of L. Blfilar of Business Manufacturer. The experiment is done such that the oscillation was not dampened by carefully tilting the bar before suspennsion for oscillations.

Bifilar Pendulum Introduction This practical explores bkfilar use of dimensional analysis in the formulation of an equation. Where Mo is the mass of the hole bored, Ro is the radius of each hole bored and X is the distance from each hole on either side to the centre of the rectangular bar.


This is an idealised experiment, where your results will be improved by taking multiple, repeat measurements and applying a statistical analysis to the data.

Bifilar suspension system – Theory of Machines – 1

However, the approach taken for this experiment is to determine the moment of inertia of a drop by suspending the cords through the mass centre of bodies, obtaining an angular displacement about the vertical axis through the centre of mass by a sensibly small angle. The bifilar suspension technique offers the opportunity to determine the radius of gyration of a body by xuspension the readings gotten from the procedure in the techniques and relating that into the equation of angular and this invariably provides the determination of the moment of inertia for the same body.

Where Io is the moment of inertia of the bored holes. Mass of each added mass. A diagram on the arrangement of the apparatus used is illustrated below: Newer Post Older Bicilar Home. Get Latest Price Request a quote.

Save time and let us provide you with verified contacts. The radius of gyration and moment of inertia reduced after the length of wire was increased from test 1 to test 2 but increased right after till test 4.