Design and optimization of a lightweight RC airship structure using CAD and FEA

Anuar, Nurulnatasha (2024) Design and optimization of a lightweight RC airship structure using CAD and FEA. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This research uses computer-aided design (CAD) and finite element analysis (FEA) methods to design and optimise a lightweight RC (Radio Controlled) airship structure. The objective is to design a lightweight radio-controlled airship without losing its stiffness and strength. Using CAD software, a 3D model of the airship's structure is created, including important components like the envelope, gondola, and propulsion system. During the conceptualization phase, various design factors are taken into consideration, such as aerodynamic efficiency, structural integrity, and weight reduction. The structural components are then analysed and optimised for strength, stiffness, and weight using the FEA method. The stress distribution, deformations, and potential failure areas are determined and addressed through material selection, geometry modifications, and reinforcement techniques by subjecting the model to simulated operating conditions and external forces. To further reduce the airship structure's overall weight without sacrificing its strength and safety, research also examines the incorporation of lightweight materials like advanced composites and alloys. The goal of this strategy is to increase the airship's flexibility, manoeuvrability, and ability to carry payloads. Iterative design refinements and optimisation are made possible by the results of the CAD and FEA simulations, which offer insightful information about the structural performance of the airship. The design parameters are evaluated and changed constantly to create an optimised lightweight airship structure that meets the required performance standards. The outcomes of this research have important implications for the development of light-weight aerial vehicles, such as unmanned aerial systems, surveillance platforms, and air transportation. By offering useful insights into the design and optimisation of lightweight RC airship structures using CAD and FEA techniques, the methodology and findings presented in this study advance the field.

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