Design Optimization of the Tubing Assembly Structure for Seismic Conditions
K Sandhya Rani1 and
V Krishna Reddy2
1.M.Tech Student, Department of Mechanical Engineering, Krishnachaitanya Institute of Technology & Sciences, Markapur, Andhra
Pradesh, India.
2.Professor, Department of Mechanical Engineering, Krishnachaitanya Institute of Technology & Sciences, Markapur, Andhra Pradesh,
India.
Abstract—In this paper, desired data from the modal analysis will be obtained from ANSYS using tubing
assembly structure model. The FRS data is obtained from the geographical region where this
structure will be mounted. Those data will be used for performing response spectrum analysis,
which is essential data for designing a structure. Therefore, it was possible to determine whether
the structure is safe through. In my current project the scope of work includes, Creating 3d
model of the tubing assembly structure. Modal analysis to study the fundamental frequencies of
the structure Dynamic analysis: To evaluate seismic response of the system under Operation
Basis Earthquake (OBE) and Safe Shutdown Earthquake (SSE). The response spectra used
for SSE in X, Y, Z directions are given as input. Calculation of stresses in the beam elements as
per ASME section, sub-section NF for the above load cases are done, also Verification of
adequacy of welded/nut bolt joints are done. In this project “g” values at five locations where
maximum accelerations occur are computed. Design optimization of the structure was done
based on the results obtained.
Index Terms—Tubing assembly, Seismic conditions, FRS data, ANSYS
Cite: K Sandhya Rani and V Krishna Reddy, "Design Optimization of the Tubing Assembly Structure for Seismic Conditions," International Journal of Mechanical Engineering and Robotics Research, Vol.3, No.4, pp. 542-550, October 2014.