a load-sensing valve prevents the jaws from opening when the beam is carrying its load 10,000kg SWL Here, the case is considered of the parametric excitation caused by spatial variations in stiffness on a periodically supported beam such as a railway track excited by a moving load. Institutional Login (DFKHQGRIWKHEHDPKDVK\GUDXOLFUDLO MDZVPRXQWHGLQWXUQWDEOHPRXQWVZKLFK DOORZWKHMDZVWRURWDWHWRFKDQJHIURP …
FIND YOUR LINEAR GUIDE RAIL SOLUTION What sets a Thomson linear guide rail apart? A STRONG, SAFE, RELIABLE RAIL HANDLING BEAM FOR DELIVERY AND SITE APPLICATIONSThomson Engineering Design produce an unparalleled range of machines, attachments and tools for track renewal and maintenance.© 2020 Thomsonrail. The Thomson Engineering Design TD15-01 Threader dragger is the ultimate tool for handling, removing and installing long welded rails of all types (including conductor rail). This difference is shown to be due to shear deformation in the rail, which is significant for span lengths less than about 2 m. A 2.5D finite element model of the rail is used as a reference. By continuing you agree to the Copyright © 2020 Elsevier B.V. or its licensors or contributors. Corner load up to 3000 kN for 4-wheel bogies. In this paper, these two models are systematically compared and discussed. All of the beam designs incorporate long jaws with soft PU jaw pads to protect the delicate rail coating.
Two rigid beams are available: 1.8m and 5m long. The Railbeams are connected during fishplates and bolts in the end plates. Copyright: Thomson Engineering Design Ltd all rights reserved
Finally, the moving load is introduced explicitly in the various periodically supported models. See our Support Products and Drive Assemblies details below for more information about supplied drives and take-ups. Combining a telescopic rail beam with a unique jaw arrangement the Multi Rail Beam can handle all types of rail including running rail, bullhead rail and conductor rail. Call TRS for a quote. The hydraulic version includes a load levelling function.TRLB20 Telescopic Rail Lifting Beams are supplied with transport stands as standard equipment.
It is generally considered that a Timoshenko beam is superior to an Euler-Bernoulli beam for determining the dynamic response of beams at higher frequencies but that they are equivalent at low frequencies. Using the same fail-safe cam mechanism as many of our other rail handling beams this light, robust little beam is designed for long life and minimal maintenance. Road Rail Vehicles (RRVs) Civil Support Fleet; Haulage; About Us; Case Studies; News; Attachments – Thompson Extendable Rail Beam. This beam is currently the only hydraulic rail beam certified by Network Rail for the handling of new rails. 20, No. multi-purpose beam with hydraulic rail clamping jaws. Using the same fail-safe cam mechanism as many of our other rail handling beams this light, robust little beam is designed for long life and minimal maintenance.Fitted with a hydraulic rotator, safety lift sensing valve, system pressure control valve and check valves on the hydraulic cylinders this is a top specification product.Adapter heads to suit all types of machine are available.Thomson Engineering Design produce an unparalleled range of machines, attachments and tools for track renewal and maintenance.© 2020 Thomsonrail.
Consequently, a quasi-static model gives satisfactory results for moderate load speeds.We use cookies to help provide and enhance our service and tailor content and ads. First, a typical beam model of Wu and Thompson [T. X. Wu and D. Thompson, On the parametric excitation of the wheel/track system,
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