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Malaysia is one of the Asian countries which are prone to disaster: flooding is one of the natural disasters that are becoming more common in Malaysia every year, threatening life. Disaster waste management is, therefore, one of the most important issues to address. Furthermore, as urbanization, population growth, and economic development increase, this leads to larger quantities of disaster waste...
This paper presents the investigation of an extrinsic optical fibre bending sensor for dynamic spine bending measurement in 2D planes. The sensor consists of one input fibre and three output fibres, confined in two modified holders. The spine bending causes the tilting angle between these two fibres to change, thus modulating the light intensity propagating in each output fibre. The output ratio between...
This paper presents the investigation of sensing range limit for intensity modulated optical fibre bending sensor using single input and dual input fibres. Plastic optical fibre is used to measure the bending angle by measuring the changes of light intensity using tilt angle loss measurement approach. To define the bending range of the sensor configurations under investigation, the fibre was bended...
This paper presents the development of bending sensor using plastic optical fibre. The bending angle is measured with respect to the changes in light intensity at the receiving fibre. To study the relationship between the sensor's output intensity power and the bending angle, three mediums with different refractive index were used at the gap in between of the emitting and receiving fibres. It was...
Critical Success Factors (CSF) is used to measure an organization's performance in achieving its mission. In building maintenance, CSF is important as it can identify the cause of failure as well as improving the system. The aim of this paper is to derive a generic concept of CSF in maintenance management to be used by various organizations in Malaysia. This paper reviews the current practices of...
Flexible manipulator (FM) is a robotic arm that can accomplish different tasks and the arm is a lightweight type, which means at least one dimension of their cross section is relatively small compared to their length. This project presents the development of direct strain feedback (DSFB) with PID controller for vibration control of a FM system. Strain gauge is the main sensor used as a strain measurement...
The increased complexity of the dynamics of robots manipulator considering joint elasticity makes conventional model-based control strategies complex and difficult to synthesize. This paper presents investigations into the development of composite Fuzzy Logic Control for trajectory tracking and vibration control of a flexible joint manipulator. To study the effectiveness of the controllers, a PD-type...
This paper presents investigations into the development of hybrid control schemes for sway suppression and rotational angle tracking of a rotary crane system. A lab-scaled rotary crane is considered and the dynamic model of the system is derived using the Euler-lagrange formulation. To study the effectiveness of the controllers, initially a collocated proportional-derivative (PD) controller is developed...
The increased complexity of the dynamics of robots manipulator considering joint elasticity makes conventional model-based control strategies complex and difficult to synthesize. This paper presents investigations into the development of PD type Fuzzy Logic Control (FLC) with non-collocated Proportional Integral Derivative (PID) for trajectory tracking and vibration control of a flexible joint manipulator...
This paper presents investigations into the implementation of input shaping schemes for anti-sway control of a gantry crane system. A lab-scale gantry crane is considered in the experimental work. An unshaped bang-bang input voltage is used to determine the characteristic parameters of the system for design and evaluation of the input shaping schemes. The input shaping schemes with different derivatives...
This paper presents investigations into the implementation of input shaping techniques in hybrid control schemes of a rotary crane system. A lab-scaled rotary crane is considered and the dynamic model of the system is derived using Euler-Lagrange formulation. To study the effectiveness of the controllers, initially a collocated proportional-derivative (PD) control is developed for horizontal angle...
This paper presents investigations of sway feedback control approaches for a rotary crane system with disturbance effect in the dynamic system. Linear Quadratic Regulator (LQR) controller and Proportional-Derivative (PD)-type Fuzzy Logic controller are the techniques used in this investigation to actively control the sway of rotary crane system. A lab-scale rotary crane system is considered and the...
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