Design and development of spherical amphibian vehicle (SAV) - focusing on terrestrial environment

Anuar, Mohamad Shafiq (2021) Design and development of spherical amphibian vehicle (SAV) - focusing on terrestrial environment. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This project focuses on the design and development of Spherical Amphibian Vehicle (SAV), focusing on terrestrial elements for the vehicle. Most vehicles today mainly conform to a rectangular/cuboid shape, so what if vehicles of the future change its shape to a circular/spherical shape? This project is to research on the potential of a spherical type vehicle and learn if it is viable for future vehicles. The objectives of the project are to design the SAV using 3D modelling software such as SolidWorks and to evaluate the stability of the SAV when performing basic movements. The SAV prototype for this project would only consider the terrestrial aspect, and would not exhibit any aquatic qualities. The main drive system for the SAV uses a motorized drive shaft and a pendulum to steer. A gyroscopic IMU sensor is placed within the SAV to transmit the SAVs stability performance by showing its rolling and pitching angles during idle and any movement. The design for the prototype was successfully modelled in SolidWorks. For the performance evaluation, a movement stability test is done to quantify the overall stability of the SAV. Results were taken with a specification of stability; the tolerated angles should be within range of -5° to 5° of the expected angles. Results show that the SAV prototype is very stable based on averaging angles but by viewing the minimum and maximum data recorded were off the tolerated angle range. Therefore, the SAV prototype developed is considered as partially stable.

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