Abstract
Contemporary emergency crossing systems used by military and crisis service systems are constantly evolving and have to meet many requirements. As a result, modifications to the prototype pontoon bridge segment with adjustable displacement, are proposed. The floating cradle system has been upgraded, additional displacement modules have been supported and a number of solutions including floating equipment and fittings have been added. Modifications and developed constructions allow not only to combine traditional ribbon bridges, but also mobile floating platforms with self propulsion. Assumptions and solutions used in the ferry built from adjustable displacement cassettes, have been focused on. Concept of the ferry in basic configuration and selected variants of strength tests of the shore module of such ferry, is also discussed.
Highlights
In a closed state prepared for transport, a single cassette can float, because it has a load capacity, which allows it to be mounted immediately after launching, and even the use a limited range, without inflating the pontoons
Many floating systems are available that allow to set up different configurations of pontoon bridges and ferries
An example is the PFM pontoon bridge [1], which allows for the construction of ferry boats with a displacement of 700 kN
Summary
Contemporary emergency crossing systems used by military and crisis service systems are constantly evolving and have to meet many requirements. In order to minimize the loading space, the number of elements extending beyond the outline of the cassette and the likelihood of damage to the transport connectors, the shackles are freely rotatable and placed in slots below the ground plane; insertion of the cassette coupling ports in the bow-stern part – the mechanical lock assemblies in the prototype floating cassette In order to allow for the configuration of both ferry and floating bridges, it is necessary to create in the bow and stern part, the sockets forming the base part for the additional spindles connecting the cassette segments This treatment reduced the total weight of the spring-telescopic system
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