International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 06 | June 2024
p-ISSN: 2395-0072
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Three Meter Antenna Structural Design and Analysis. Part 2: Static Analysis Om Gadhave1, Mr. Manish Patil (Guide)2 1Department of Mechanical Engineering,
2Goverment college of engineering and research avasari (kh), 3Giant Metrewave Radio Telescope (GMRT) Khodad, (NCRA)-(TIFR). ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - This research paper investigates the structural
reinforcements to mitigate potential failure risks and ensure the overall robustness of the antenna system.
analysis of a three-meter antenna dish, integrating wind and static analyses to evaluate its performance under real-world conditions. Drag and lift forces were analyzed at varying wind speeds and positions, providing insights into external forces. Using Ansys software for static analysis, the study assessed the dish frame's resilience and identified potential failure points, focusing on stress levels and deformation magnitudes. Comparison of wind and static analyses determined the critical wind speed for potential dish failure, offering valuable insights for design modifications to enhance reliability and performance against wind-induced stresses.
One of the key objectives of this static analysis is to calculate the wind speed at which our dish will fail or break by comparing the results of wind and static analysis. This comparison provides valuable insights into the critical wind speed threshold, aiding in the design optimization process to enhance reliability and performance under wind-induced stresses. In summary, the static analysis of the dish frame plays a crucial role in the structural performance design and analysis process of the three-meter antenna system. It allows analysts to assess the structural integrity of the frame under wind loading conditions, identify potential failure points, and optimize the design to enhance reliability and performance while determining the critical wind speed for potential failure.
Key Words: Static analysis, Potential failure points, Antenna dish frame, Deformation and stress, Ansys simulation
1.INTRODUCTION The second part of this research paper focuses on the static analysis of the antenna dish frame in the three-meter antenna structural design and analysis project. This analysis aims to evaluate the structural integrity of the dish frame and assess its ability to withstand the wind forces exerted on it. By subjecting the dish frame to calculated wind forces obtained from the wind analysis conducted in the first part of the research, this static analysis simulates real-world conditions to predict the structural response of the frame.
2. PHYSICAL DESCRIPTION OF STATIC ANALYSIS. 2.1 Geometry For the static analysis of the dish frame, the geometry was meticulously crafted using SolidWorks software. This involved creating a detailed 3D model of the dish frame, capturing its intricate structural features and dimensions accurately. The geometry was optimized to reflect the realworld characteristics of the frame, including its shape, size, and connection points. Once the dish frame model was completed in SolidWorks, it was saved as an STP (Standard for the Exchange of Product Data) file format. This format ensures compatibility and allows for seamless importation into other engineering software, such as Ansys, for further analysis. The geometry of the dish frame is illustrated in Figure 1. In summary, the geometry for static analysis was meticulously designed and created using SolidWorks, ensuring accuracy and fidelity to design specifications. Importing the model into Ansys facilitated detailed structural analysis, providing valuable insights into the behavior of the dish frame under different operating conditions.
Using Ansys software, this static analysis calculates the deformation and stress experienced by the dish frame under the applied wind forces. By identifying critical areas of deformation and stress concentration, indicative of potential failure points within the frame structure, this analysis helps determine the maximum stress levels and deformation magnitudes experienced by the dish frame. These results are then compared against predefined safety factors and design criteria to assess the frame's capability to withstand anticipated wind loads without structural failure. Moreover, the static analysis enables analysts to iteratively refine the design of the dish frame, optimizing its structural performance and enhancing reliability. By identifying weaknesses or areas of concern through static analysis, analysts can implement design modifications or structural
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