A set of thirteen graduated tubes show the oil pressure across and along the film under the pad. The bench-mounting unit has an aluminium plate (pad) mounted above a continuous loop flat belt. This creates a pressurised film of oil between the pad and the belt. The belt runs in an oil reservoir to provide a continuous supply of oil under the pad.
Students vary the belt speed to find the relationship between sliding speed, oil viscosity and pressure distribution. Included is a variable speed control to control the speed of the motor that turns the belt.
Experiments:
Pressure distributions in a tilting pad bearing.
The relationship between pressure and the film thickness at the trailing edge of the pad.
Influence of sliding speed and viscosity on the pressure distribution in the bearing and comparison with calculations based on Reynolds equation.
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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Protection with comfort
Made of blue neoprene over yellow latex
Raised diamond grip on palm and fingers for good wet or dry grip
Flock lining to absorb perspiration; permits easy on and off
Ideal for general housekeeping, maintenance applications, food processing and food service applications, as well as industrial use.
Straight cuff
Double-dipped construction provides increased protection, versatile chemical resistance properties, and comfort.
Length: 12 in. (30.5 cm)
Thickness: 28 mil.
The apparatus is equally suitable for student experiments or demonstrations. Model consists of a three-hinged deck suspended by ties from a light cable. This bench-mounted apparatus is used to investigate the structure under a wide range of load conditions. Cable can be readily adjusted to give different values of dip over the 1m span.
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The extended surface comprises a 10mm diameter, long brass rod mounted horizontally and heated at one end with a 20 Watt, 24V DC heater.
Eight thermocouples mounted at 50mm intervals along the rod provide the temperature distribution.
A small-scale accessory designed to demonstrate the temperature profile and heat transfer characteristics for an extended surface when heat flows along the rod by conduction and heat is lost along the rod by combined convection and radiation
A comprehensive instruction manual is supplied.
Temperature of the ambient air is measured by an independent thermocouple.
The accessory is mounted on a PVC baseplate which is designed to stand on the bench top and connect to the Heat Transfer Service Unit without the need for tools.
The Liquid Sedimentation Apparatus is designed to study the settling characteristics and particle sizes of suspended solid. The rear panel is translucent with back lighting. Scales are provided on the tubes. Sedimentation rate is observed using a stopwatch. The tubes can be removed for washing, filling or mixing of solid particles. Five transparent glass sediment tubes are mounted vertically on a rigid frame.
Experiments:
Settling rate curve.
Effect of suspension height on sedimentation rates.
Effect of concentration on sedimentation rate.
Effect of particle size distribution.
Effect of flocculent.
It has a voltage and current regulation and is therefore short circuit proof; it can supply DC 24V power from an additional pair of terminals. The Power Supply unit provides and monitors the power necessary for the system operation with safety extra low voltage: the integrated choke prevents the data telegrams from short circuiting on the bus line.
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Equilibrium Of A Beam Apparatus
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The computerized version unit allows, thanks to the electronic transducers and suitable software, to display on personal computer and/or print the tables of results and diagrams of the various experiments. The Computerized Boiling Heat Transfer Apparatus has been designed to perform experiments concerning heat transfer due to convection in a boiling liquid (water). The second leg of the bridge is used to balance the nickel wire and is immersed in a cooling vessel filled with water. The unit is supplied with manuals that describe each component of the system, installation and utilization procedures, and gives many exercises. The unit consists of a vessel containing a quantity of water continuously stirred and heated by a nickel filament. Since this wire is a leg of an alternate current bridge, the temperature can be measured very accurately.
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Theoretical topics:
Diodes circuits
Switching regulator
Fault simulation
AC/DC conversion
DC/AC conversion
Voltage regulator with transistor
Variable IC voltage regulator with overload protection.
Circuit blocks:
Diodes
Circuit protect
Switching regulator
AC/DC converter
DC/AC converter
Shunt voltage regulator
Variable IC voltage regulator.
Provides enhanced cut resistance and excellent wet or slippery grip
Enhanced cut resistance
Excellent wet or slippery grip
Interlock lining provides great dexterity
Gauntlet length, covers forearm
Available with sandy or rough acid grip finish
Jersey lining provides comfort and moderate insulation.
The Piping Loss Apparatus Large is intended to be used with a Hydraulic Bench or an outside water supply. Friction loss is measured by a pressure drop and coefficient of discharge is determined from a pressure drop and a flow rate. Piping Loss Apparatus Large is a comprehensive unit for studying the friction losses in pipes, pipe fittings, and valves and to determine coefficients of discharge for primary flow measuring devices at various flow rates. All friction loss components and the flow measuring devices are arranged on a water proof panel which is attached to a floor standing steel frame. Flow rate is obtained from a water meter and a stop watch. All pressure taps are connected by flexible hoses to a set of specially arranged manifolds such that differential pressure across any component can be measured simply by opening valves without removing the hoses. The pressure drop is measured by differential pressure using manometers. Pressure tapping in by valves with quick connection.
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Theoretical topics:
Regulated power supplies
Zener diode introductory information
Series voltage regulators
Voltage feedback regulators with current limiting protection
Series current regulators
Shunt voltage regulator
General characteristics of monolithic regulators
Three Âpin IC regulator operation
Shunt voltage regulator with Zener diode parallel connected to the load
Shunt voltage regulator with bipolar transistor
Fault simulation
IC regulators and DC to DC converter
DC to DC converter operating characteristics.
Exercises on gas pipes
1 gas meter with 1 connection
1 gas meter with 2 connections
2 individually selectable pipe sections
1 pipe section as supply pipe with gas socket and gas connection with ball valve
1 pipe section for finding leaks.
Experiments:
Study Of Strains, Stresses, Forces And Deflections In:
A Statically Indeterminate Structure
A Statically Determinate Structure
Operating Conditions
Operating Environment: Laboratory
Operating Relative Humidity Range:
80% At Temperatures < 31c Decreasing Linearly To 50% At 40c
Storage Temperature Range: 25c To +55c (When Packed For Transport)
Operating Temperature Range: +5c To +40c.
The basic tribological phenomena of journal bearings can be investigated using this unit. A lever with a sliding weight attached to it is connected to the bearing housing. This enables an external moment to be set corresponding to the friction moment generated in the bearing. The journal bearing to be investigated consists of a stainless steel bearing journal and the free-moving gunmetal bearing housing. A three-phase ac motor with a frequency converter for speed control serves as the drive. Another lever, combined with a set of weights, applies the defined load to the bearing. It is possible to view the bearing journal and the lubrication gap through the transparent cover. The continuously adjustable speed, as well as the temperature of the lubricant, is indicated digitally on the control unit. Lubricant is supplied by a drip-feed lubricator that feeds oil to the shaft via two lubrication channels. A drip tray collects the oil that leaks out.
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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.
Ideal Gas Law Apparratus
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The device has a pitot-static tube that can be moved axially along the duct to allow students to measure the local variations in total and static pressure due to the variation in duct cross section.
A convergent divergent duct section that connects to the Hilton Airflow System using a flexible coupling.
The measured pressure changes may be compared with the Bernoulli equation predictions. The device is designed for use with the optional multi-tube manometer.
