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Thermal Analysis For Mysat-USM Cubesat

Thermal Analysis For Mysat-USM Cubesat / Norliza Farhah Abdul Radzak
Reka bentuk haba merupakan satu langkah penting dalam proses reka cipta Cubesat. Reka bentuk haba akan mempengaruhi jangka hayat keseluruhan Cubesat dan keberjayaan misi. Reka bentuk haba merangkumi analisis haba and sistem kawalan haba (TCS). Tesis ini akan menjelaskan mengenai analisis haba bagi MYSat, Cubesat pertama Universiti Sains Malaysia. Analisis haba bagi Cubesat melibatkan dua perisian simulasi iaitu simulasi STK dan analisis haba ANSYS. Analisis haba ini dijalankan dalam tiga peringkat, simulasi STK, pengiraan berdasarkan formula dan analisis haba menggunakan ANSYS. Setiap peringkat berkait rapat antara satu sama lain. Hal ini kerana keputusan daripada satu peringkat akan digunakan untuk peringkat seterusnya. Simulasi STK memberikan sudut beta dan keamatan solar yang diperlukan bagi pengiraan suhu. Daripada pengiraan tersebut, sempadan keadaan bagi analisis haba ANSYS dapat diperolehi. Analisis haba bagi MYSat dilakukan bagi dua keadaan, panas dan sejuk. Analisis haba ANSYS dilakukan bagi struktur luar MYSat dan bateri Li Ion. Daripada keputusan tersebut, pembahagian suhu bagi struktur luar MYSat dan kesan suhu pada bateri boleh diperhatikan. Susunan komponen kritikal, bateri dan muatan dilakukan berdasarkan keputusan analisis haba. _______________________________________________________________________________________________________ Thermal design is an important stage in a Cubesat design process. Thermal design will affect the overall lifespan of the Cubesat and the mission successfulness. Thermal design includes thermal analysis and thermal control system (TCS). In this thesis, thermal analysis for MYSat, Universiti Sains Malaysia first Cubesat is studied. The thermal analysis for MYSat involves two simulation software, STK simulation and ANSYS thermal analysis. The thermal analysis is done on three stages, the STK simulation, calculations based on formulas and ANSYS thermal analysis. The stages are linked together as results from one stage is used for the next. The STK simulation provides the beta angles and solar intensity necessary for the temperature calculations. From the calculations, the boundary conditions for the ANSYS thermal analysis is obtained. The thermal analysis for the MYSat is done for two cases, the hot and cold cases. The ANSYS thermal analysis is done for the external structure of the MYSat and Li Ion batteries. From the results, the temperature distribution on the external structure of the MYSat can be observed along with the temperature effect on the batteries. Positioning for the critical components, the batteries and the payload are done based on thermal analysis results.
Contributor(s):
Norliza Farhah Abdul Radzak - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875006761
Barcode : 00003105268
Language:
English
Subject Keywords:
Thermal design; Cubesat design process; overall lifespan
First presented to the public:
5/1/2016
Original Publication Date:
5/15/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Aerospace Engineering
Citation:
Extents:
Number of Pages - 68
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-05-15 12:54:27.413
Date Last Updated
2020-05-06 22:50:46.185
Submitter:
Mohd Jasnizam Mohd Salleh

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