Projecte matriculat
Títol: Structural Analysis of a PocketQube by Simulation & Experimental testing, and Design of Antenna Deployment Mechanisms
Director/a: PARK, HYUK
Departament: FIS
Títol: Structural Analysis of a PocketQube by Simulation & Experimental testing, and Design of Antenna Deployment Mechanisms
Data inici oferta: 03-02-2026 Data finalització oferta: 03-10-2026
Estudis d'assignació del projecte:
GR ENG SIST AEROESP
| Tipus: Individual | |
| Lloc de realització: EETAC | |
| Segon director/a extern: Roger Almirall | |
| Paraules clau: | |
| Satellite, PocketQube, Antenna | |
| Descripció del contingut i pla d'activitats: | |
| 1. Project Objectives
1.1. General Objective To perform a structural analysis of a PocketQube through Finite Element Analysis and experimental vibration testing, and to design and verify two new antenna deployment systems, from L-Band and COMMS. 1.2. Specific Objectives A. Structural Validation: ' FEA Simulation: Perform Modal, Quasi-static, Random Vibration, and Shock analysis on the current design. ' Experimental Correlation: Perform a Shaker Test to validate the integrity of the design and correlate the natural frequencies with the simulation. B. Mechanism Design: ' L-Band Antenna: Design a completely new deployment mechanism in compliance with ESA's requirements. ' Comms Antenna: Design a reliable deployment solution ensuring compatibility with the updated structural requirements. C. Verification of Mechanisms: ' Verify the structural viability of the new mechanisms via simulation. ' Ensure no mechanical interference occurs between the existing model and the new antenna modules. 2. Methodology The project is divided into two parallel workflows: Validation of structure and Design of the antennas. 1. Baseline Review: Analysis of the provided PocketQube CAD model and definition of launch loads (ESA's requirements). 2. Structural: ' Pre-Test Analysis: Running FEA simulations on Ansys on the existing model to predict mode shapes and stress points. ' Testing: Performing a Sine Sweep and Random Vibration test on a shaker to extract real eigenmodes and check for possible structural failure. ' Correlation: Observe if there is a match in experimental data. 3. Design: ' Concept Generation: Proposing mechanisms for L-Band and Comms that fit within the remaining volume of the validated chassis. ' Detailed CAD: Modeling the new deployment systems in SolidWorks. ' Virtual Validation: Simulating the deployed stiffness and ensuring the mechanisms can survive the launch loads. 3. Detailed Scope of Analyses 3.1. Chassis Structural Analysis & Testing Since the design exists, the focus is on verification: ' Modal Analysis: Identify fundamental frequencies. The Shaker test will confirm if the real structure meets the >100 Hz requirement. ' Random Vibration: Simulate the PSD curve in Ansys. Expose the prototype to random vibration to check for screw loosening or fatigue. ' Shock Analysis: Numerical evaluation of the chassis response to separation shock. 3.2. Antenna Deployment Design (L-Band & Comms) The original antennas are being replaced. The new design process involves: ' Volumetric Feasibility: Ensuring the new folded antennas follow ESA's requirements. ' Mechanism Design: Selection of elements such as screws, springs, resistor for burning, etc. 4. Tools and Software ' CAD: SolidWorks. ' FEA: Ansys Workbench. ' Experimental: UPC Nanosatlab's Shaker. ' Documentation: LaTeX. 5. Time Planification ' January: Conceptual design of new antennas and familiarisation with Tools (done). ' February: Start of detailed CAD for new antennas. Creation of the model and check requirements for structural. ' March: Experimental Shaker Test. And first structural simulation. ' April: Correlation of FEA vs. Test data. Completion of Antenna CAD. ' May: Integration of new antennas into the correlated model. Analysis of final refined results structural. ' June: Documentation and finish thesis writing. |
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