• Chethan S
• Niranjan Hiremath

The aim of this study is to perform techniques such as pressure mapping of the missile structure, Inertia Relief Analysis for Rocket Structure in the effective way with the low cost. And the analysis plays important role in the structural design and safety. Due to the advances with numerical software’s, the simulation helps in estimating the safety of the structures without actual prototype built up and testing. Firstly we design the Rocket parts by the help of modelling tools using solid edge v19, Catia v6 and assembled it later. In order to find pressure distribution on the missile surface and to find the stress and deformation of missile structure by pressure mapping using CFD mesh in Acusolve on to the Rocket Structure, Pressure values in “X, Y and Z” co-ordinate with magnitudes are obtained in CSV file format. And later we study behavior of the missile parts like Nose, Nose cone, Body, Tail and Fins when the surface remains same from nose to tail and the fins with the varying thickness. And we use the Maraging Steel 250 grade as the material and its properties is assigned to the mesh. And the mesh thickness of the outer shell material is increased for different cases along with a speed of Mach number 0.75 and 5. And structural changes are seen when the loads are applied to the mesh. Characteristics individualities of displacement, stress distribution and high stress locations are determined and results are extracted in terms of plots using the tools Hypermesh for Pre-processing, Optistruct, Acuconsole for Solving and Hyper-view, Acu-Field View for Post Processing.

Rocket Structure, Missile, CFD mesh, Pressure mapping of the Missile Structure, Inertia Relief Analysis.

"Design Optimization and Analysis of Rocket Structure for Aerospace Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.333-346, May-2019, Available :http://www.jetir.org/papers/JETIRBZ06053.pdf

"Design Optimization and Analysis of Rocket Structure for Aerospace Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp333-346, May-2019, Available at : http://www.jetir.org/papers/JETIRBZ06053.pdf