Mohamad Haniff Harun

Dynamic modelling and analysis of 3D overhead gantry crane system

The overhead gantry crane systems are extensively used in harbours and factories for transportation of heavy loads. The crane speeding up, required for motion, always induces undesirable load swing. This writings present dynamic modelling of a 3D overhead gantry crane system based on closed-form equations of motion. By using the Lagrange technique, a 3D overhead gantry crane system nonlinear dynamic model is deriving. Then perform a linearization process to obtain a linear model dynamic system. Finally, simulation results systems responses of the derived nonlinear and linear model are presented showing the accuracy and performance of both model.

Performances analysis of underwater Remotely Amphibian Vehicle (RAV)

This project is mainly focusing on the development and performances analysis of the Remotely Amphibian Vehicle (RAV). This innovation mends to assist human in aquatic operation as well as aerial activity. However, this is still a very recent groundwork with numbers of limitation and challenge. Challenges like transition in medium has limited and affected the performance of the vehicle in terms of flying or submerging capability. To validate and verify the performances of this RAV, a series of simulation and experiment will be carried out. This RAV is tested and verified of able to fly in the air as well as submerge into underwater and capable of hovering like a normal quad-copter up to a height of 200 cm and submerge about 20 cm of depth. The RAV has successfully achieved the aim of travel in both mediums.

Measurement of low frequency signal of power grid using Arduino

The range of the frequency to be measured by a measurement device depends on the purpose of performing the measurement. The frequency measurement device is built specifically according to its range while the price of the device is proportional to its functions. In this paper, a low frequency measurement device to monitor grid frequency is designed using Arduino technology. All aspects of the design from the software to hardware is explained. This device costs less than 100 US Dollar and it is capable to perform data logging for data analysis. The frequency range for the device is between 45 Hz to 60 Hz with 0.003 Hz resolution. This paper also discuss the standard commercial measurement device in power system and Arduino capabilities. The measurement data from the device is analyze for its accuracy and reliability.