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Development of rotary crane system controller using fuzzy logic controller: membership function study

Akhiak, Mohd Azri (2012) Development of rotary crane system controller using fuzzy logic controller: membership function study. Masters thesis, Universiti Tun Hussein Onn Malaysia.


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The rotary crane also known as a tower crane is widely being used in the construction of higher buildings. The crane is consists of a jib that rotates in a horizontal plane around a fixed vertical axis and a trolley that holds the load which can move linearly along the jib. This study only focuses on the linear motion of trolley along the jib. The challenging process in order to control the crane are to make sure the trolley stop at the desired position and to deal with swing phenomenon introduced by the trolley motion. But, for the beginning of this study, the position control issue needs to be considered. Since many controllers can be implemented in this system in order to control the position, thus the implementation of practical controller must be investigated. A practical controller known as a fuzzy logic controller with various types of membership functions is implemented to control the position of the trolley. Since fuzzy logic controller is known as non-model based controller, hence it will be less time consuming to design. The scope of this study is limited only for four types of membership function which are common triangular, gaussian, trapezoidal and generalized bell membership function due to their similarities of symmetry characteristics. The performance of fuzzy logic controller with those membership functions is recorded and compared by using Simulink (MATLAB) simulation.

Item Type: Thesis (Masters)
Subjects: T Technology > TJ Mechanical engineering and machinery
Depositing User: Normajihan Abd. Rahman
Date Deposited: 23 Apr 2012 01:23
Last Modified: 23 Apr 2012 01:23
URI: http://eprints.uthm.edu.my/id/eprint/2396
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