Technology Transfer and International Conference, 5-6 November, 2012

www.questreach.com PRADEC Conference Proceedings www.academicpublishingplatforms.com Volume 1 | Issue 1 | December 2012 |pp.139-140

New developments in the lift-and-carry building

Ainash Beisenova, Natalya Bazinova Kazakh , Financial-Banking Academy, Republic of Kazakhstan The innovative industrial development and industrialisation raised an issue of forming and developing lift-and-carry, construction, and road machine building industry, and training of high qualified staff in Kazakhstan capable of building new and complexes in addition to solving complicated problems of mechanization. Keywords : Machine industry, life-and-carry machine building industry, industrial development

The innovative industrial development and industrialisation raised an issue of forming and developing lift-and-carry, construction, and road machine building industry, and training of high qualified staff in Kazakhstan capable of building new machines and complexes in addition to solving complicated problems of mechanization. The scientific research centre of the lift and carry machine building has been set up in Kazakhstan, which is headed by Professor S.A. Djienkulov. The scientific research is concentrated on developing the high efficiency technologies, machines, and equipment and includes the following research trends: the scientific basis for determining the parameters of the lift and carry machines; calculating theory for high efficiency constructions of the ribbon conveyors and conveyors with cable draft ; the theory for design of prospective conveyor installations and bridge cranes; foundation engineering of multi - bucket excavators and rotor transport systems; foundation engineering of machine systems for loading, transportation and warehouse operations; foundation engineering of components of the lifting machines; foundation engineering of the mechanism for lifting drilling rigs and oil storage equipment; use of the flexible plates and covers theory for development and project design of the lift-and-carry machine building industry, robotics and road construction machines; design of metal structures of the lifting machines subject to the residual impact. The findings of the scientific research have been implemented in the machine building, , oil production, and other industries. Complex methods of forecast evaluation of parameters of the machine structure have been used for development of the “Methods of Patent Research” of the Committee of the USSR Proceedings Conference Interdisciplinary PRADEC on Inventions and Discoveries and have been entered into the GOST (all-Union State Standard) of the USSR and machine building encyclopedia. Based on the results of scientific research, 10 doctoral theses and more than 35 MPhil theses were defended, numerous scientific works including 10 monographs, 20 interuniversity scientific reference books, 5 books, and study letters have been published in state and Russian languages. The originality of the studies carried out by the Center is acknowledged by inventor's certificates and patents granted in Kazakhstan, Russia, and the USSR, which outnumbered 100. The results of the scientific research can be used by design engineers and scientific workers, and in using the method of calculating the dynamic efforts of the metal bridge cranes and in particular, the passing beams when lifting the load. All basic

© 2012 Prague Development Center - 139 - Technology Transfer and Innovation International Conference, 5-6 November, 2012 settings apply not only to the bridge crane with cargo trucks in the middle of the span (general bridge type cranes, magnetic cranes with the lifting of cargo). The received by the method of the highest total load (static, dynamic) are attached to the metal of the crane and to span beams, and based on them internal efforts, displacement, and pressure are determined. In modeling current construction, the map of loads allows to analyze the distribution of various internal reagent power factors (forces and moments) arising in elements of construction model. By changing the load and moving the truck stress loading of beams is identified, when the truck is in the middle of the bridge. The metal construction of cranes is the elastic system by distributed masses and an infinite number of degrees of freedom, which complicates mathematical description of them as dynamic systems. On this regard, in many cases, when addressing the dynamics of elastic systems with distributed parameters, their methods are widely used for concentrated masses, which allow the calculation and study of metal structures of cranes to use their simplified dynamic model. Therefore, the essential characteristics of dynamic models of metal constructions are: mass, stiffness, frequency and period of own vibrations. Usage of payment schemes and their corresponding dynamic models for bridge cranes of standard spans of dynamic models with lumped masses instead of discretely distributed leads to an overestimation of, for example, the dynamic bending moment of main spans of the bridge beams up to 10-13%. Accuracy in determining the source of dynamic parameters of crane metal structures (given or distributed mass and stiffness of the bridge), which is 5-10%, is considered acceptable for engineering calculations.

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