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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Dynamic Analysis and Verification of Structurally Optimized Nano-Satellite Systems
Srikanth Raviprasad and Nagaraj S Nayak
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DOI:10.17265/2332-8258/2015.02.005
1. Manipal Institute of Technology- Manipal University,Manipal 576104, India 2. Mechanical and Industrial Engineering, Caledonian College of Engineering, Glasgow Caledonian University, CPO Seeb 111, Sultanate of Oman.
The need for humans to explore space is ever increasing with the complexity of problems encountered, requiring experiments at different physical conditions. The cost and other resources incurred in each of the space missions are soaring, irrespective of the entanglements of these missions. Nano-satellites have paved way in this regard, as they are cheap, feasible and provide a platform for new technologies to be tested and validated in space which can then be extended to larger satellites for more applications. Dynamic analysis of a structure is crucial in its conceptual design phase, so as to determine natural frequencies of the individual bodies and also the deformation and stress induced at the corresponding mode of vibration, and to ensure that the overall coupling frequency is well out of the danger zone, so as to avoid resulting structural damages. This paper deals with performing modal, harmonic and random vibration analysis of a structurally optimized nano-satellite and comparing this with the value of frequency with forcing function due to the launch vehicle loads obtained from experimental data from Indian Space Research Organization. The paper also provides a brief insight about different aspects considered like, structural constraints, deployer design, material selection, etc.
Nano-satellite structural designs, natural frequency, finite element methods, modal analysis, harmonic analysis, random vibration analysis.
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