METHOD OF INTERBLOCK CONNECTIONS IN A DYNAMIC PACKET-ROD MODEL OF LIQUID CARRIER ROCKETS

Authors

  • Александр Сергеевич Цыбенко National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv, Ukraine
  • Николай Георгиевич Крищук National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv, Ukraine
  • Александр Станиславович Конюхов National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv, Ukraine

DOI:

https://doi.org/10.20535/2305-9001.2015.73.28493

Keywords:

rocket, dynamic rod model, interconnect communication, stiffness parameters, inertial-mass characteristics, two-node superelements, stiffness matrix, mass matrix

Abstract

The method of building the computational model of attachment interconnects relationships which uses beam type finite element, superelements, absolutely rigid and kinematic constraints for the dynamic packet-rod model of a carrier rocket is presented. Using the results of computer tests the stiffness and inertial mass characteristics of two-node superelements approximating the attachment points of the main unit and suspension modules of a "Cyclone-4" rocket is determined. Using the data of finite element modeling of  the  three-dimensional elastic stress-strain state of the twenty-four calculating schemes, the stiffness matrix of two-node superelements approximating the attachment points of the main (central) and auxiliary (suspended) blocks of the rocket is defined. To assess the influence of inertial-mass characteristics of the power frames at the corresponding nodes of the discrete model of  central unit and suspension modules, the corresponding equivalent masses with respective inertia moments are included

Author Biographies

Александр Сергеевич Цыбенко, National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv

ММІ, професор

Николай Георгиевич Крищук, National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv

ММІ, професор

References

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Published

2015-05-26

Issue

No. 73 (2015)

Section

Статті

License

The authors reserve the right to authorship of the work and pass the journal right of first publication of this work is licensed under a Creative Commons Attribution License, which allows others to freely distribute the work published with reference to the authors of the original work and the first publication of this magazine.