EDN: IUFWAU
Authors & Affiliations
Vilensky O.Yu., Dushev S.A., Lapshin D.A., Kuragina N.D.
Afrikantov Experimental Design Bureau of Mechanical Engineering, Nizhny Novgorod, Russia
Vilensky O.Yu. – Head of Department, Cand. Sci. (Tech.).
Dushev S.A. – Chief Designer of Fuel Handling Equipment, Cand. Sci. (Tech.).
Lapshin D.A. – Head of Design Group, Cand. Sci. (Tech.).
Kuragina N.D. – Design Engineer, 3rd Category. Contacts: 15, Burnakovsky proyezd, Nizhny Novgorod, 603074, Russia. Tel.: +7 (831) 246-97-21; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Abstract
The purpose of the work is to develop an effective damping device designed to reduce dynamic loads on the container and on the structures placed under the damper, in case of emergencies associated with the equipment falling during transportation and handling operations, as well as justification of damping device integrity and operability.
The approach that we propose for such justifications is based on numerical methods using models of elastic-plastic behavior of structural materials. This approach allows obtaining accurate results without excessive conservatism and predicting in advance the reliability of products being designed with optimized metal content.
The paper summarizes the main results of the collision process analysis of the container with the damping device. A comparative analysis of various parameters obtained by dropping a container mockup on a rigid base from a 10 meter height with the data obtained by dropping a container from a higher altitude on a damping device.
The computational analysis was performed by applying the certified ANSYS/LS-DYNA software package. Mathematical 3D modeling had a major place in the implemented approach, which allowed us to perform a thorough and detailed analysis of dynamic processes, thereby cutting the design time, and to reduce the cost of the design being developed by eliminating expensive full-scale tests at the design development stage.
The obtained mathematical analysis results of the damping device behavior at the time of collision with the container, allowed us to develop an approach to safety justification of equipment in emergency conditions and underlay the formation of the final design of the developed structure.
Keywords
dynamic processes, plastic deformation, assessment of emergency consequences, elastic-plastic strain, damping device, safe operation, software package, and deformation model
Article Text (PDF, in Russian)
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UDC 621.039.5:539.49
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2025, no. 2, 2:17
