In cooperation with the Iranian Nuclear Society

Calculation and Determination of Natural Frequencies for Fresh Fuel Transportation Package Set with ANSYS®10.0 Software

Document Type : Research Paper

Authors

Abstract
The fresh fuel for BNPP-1 is due to be transported inside special containers which are supposed to be designed to stand against vibrations and impacts in order to protect the fuel from any possible damage. In order to perform the structural dynamic analysis of the containers, while being subjected to impact of dynamic forces, it is necessary to perform the vibration analysis which will lead to the vibrational modes and their natural frequencies for the structure of the containers. The vibration opposition of the containers must be far beyond the critical resonance. The resonance frequencies about the natural frequency of the structure will cause the enhancement of the oscillation range and may be ended with its disintegration. Determination of the natural frequencies and their mode shapes can be achieved by vibration-analyzing-methods. The amount of the natural frequency of any structure depends strongly on its shape, material and its lean points, as well as the amount and the type of the loads which the structure will be subjected to. In the presente research, the container of the fresh fuel of BNPP-1 is simulated by ANSYS®10.0 and their ten natural frequency modes have been calculated.

Highlights

  1. 1.    “Radioactive material transport Regulations,” Requirements #ST-1, IAEA, Vienna (1996).

 

  1. 2.    “Radioactive material transport Regulations,” corrected in 1990, IAEA, Vienna (1985).

 

  1. 3.    User Manual of ANSYS®10.0 Software (2007).

 

  1. 4.    “Calculations proving the safety provided by TK-C5-B package set used to Transport VVER-1000 Fuel Assemblies,” JSC. TVEL (2002).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  1. 5.    “Rules for climbing crane arrangement and safe operation,” 10-382-00 (1985).

 

  1. 6.    “General regulations on safety and Physical Protection,” When Transporting Nuclear Materials (OPBZ-83)(1984).

Keywords


  1. 1.    “Radioactive material transport Regulations,” Requirements #ST-1, IAEA, Vienna (1996).

 

  1. 2.    “Radioactive material transport Regulations,” corrected in 1990, IAEA, Vienna (1985).

 

  1. 3.    User Manual of ANSYS®10.0 Software (2007).

 

  1. 4.    “Calculations proving the safety provided by TK-C5-B package set used to Transport VVER-1000 Fuel Assemblies,” JSC. TVEL (2002).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  1. 5.    “Rules for climbing crane arrangement and safe operation,” 10-382-00 (1985).

 

  1. 6.    “General regulations on safety and Physical Protection,” When Transporting Nuclear Materials (OPBZ-83)(1984).