Experiments:
Verification of the bending equation
Deflection of beams on two simple supports with point loads
Reciprocal properties for loads and deflection
Determination of flexural rigidity and elastic modulus (Youngs modulus)
Verification of static equilibrium
Bending characteristics of a brass/steel compound beam, with and without shearing connection between the two layers
Equivalent sections characteristics of a metal-faced wooden beam
Simple and propped cantilevers with any loading
Simply supported and cantilever beams with sinking supports
With the Specimen Beams, these additional experiments can be done:
The effects of material and section shape on flexural rigidity
Continuous beams statically indeterminate cases for simply supported beams and cantilevers on more than two supports with any loading (including measurement of unknown reactions
Deflections on a non-uniform (tapered) beam or cantilever.
Experiments:
The flexible design of the equipment allows the user to develop many other analysis and control exercises to suit their needs. It is good for extended or advanced control experiments, and is ideal for student project work.
Design of state re-constructors to obtain estimates of ball velocity and position
Design of analogue phase-advance compensators
Measurement of system dynamics by transient and closed-loop methods
Essential Services.
Bench space needed: 1.5 m x 750 mm
Electrical supply: 90 VAC to 250 VAC, 0.4 A, 50/60 Hz, with earth.
An inverted aluminium T-beam is mounted between two simple supports on knife edges. The load onto the T-beam is applied using a fine screw jack mechanism with integral load cell. A standalone experiment for determining the bending stresses and strains across the surface of a T-beam. The load cell arrangement and supports create a three (3) point loading.
These strain gauges are paired with temperature compensation dummy gauges for output stability. A number of precision strain gauges are arranged on the T-beam specimen. Each strain gauge pair is numbered for accurate connection to the Interface.
This teaching apparatus enables a range of laboratory, classroom and computer-based experiments to introduce civil, mechanical and structural engineering students to plastic theory and limit state design.
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Equilibrium Of A Beam Apparatus
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The beam fixes to the Multi Structures Test Frame. Students apply loads at set positions using hangers holding various masses. The experiment hardware is a simply supported beam cut by a pivot. A Multi-Channel Digital Transducer Display displays forces during experiments. To stop the beam collapsing, a moment arm bridges the cut onto a load cell thus reacting (and measuring) the bending moment force.
Features:
Allows safe and practical experiments into bending moments in a beam
Realistic and verifiable experiment results
High-quality structures teaching module for students of mechanical, civil and structural engineering
One of many interchangeable experiment modules from AIIs modern, flexible and cost-effective Structures teaching system
Ideal for classroom demonstrations, or students working in pairs or small groups.
Shows and proves the basic theory of bending moments in a beam
Optional AIIs Structures Software package for extra virtual experiments that simulate and confirm the results from your hardware and allow extended experiments
Optional unit with AIIs Structures Software package for automatic data acquisition and virtual experiments.
