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This paper introduce a spiral dynamic algorithm (SDA) with greedy selection for optimization problems. The algorithm is developed by incorporating a greedy selection stage into SDA. This kind of modification can ensure the SDA will remain un-trapped in local optima during the searching process. The algorithm is tested using several benchmark functions and is used to optimize the PD controller of a...
This paper present an enhanced chaotic spiral dynamic algorithm (ECSDA) for optimization problems and their application in single link flexible manipulator system (SLFMS). The algorithm is developed by integrating logistic chaotic pattern into the original spiral dynamic algorithm (SDA). The artificial bee colony optimization (ABC) searching method is also adopted in ECSDA to increase its capability...
Magnetic Levitation (Maglev) system make significant contribution to industrial application due their reduce power consumption, increased power efficiency and reduced cost of maintenance. Common applications include Maglev power generation (e.g. wind turbine), Maglev trains and Medical Devices (e.g. magnetically suspended artificial heart pump). This paper proposes an optimal linear quadratic regulator...
This paper presents the development of an improved spiral dynamic optimization algorithm with application to nonparametric fuzzy logic modeling of a twin rotor system (TRS). The spiral motion and dynamic step size are generated by a spiral model that produces unique exploration and exploitation strategies of a spiral dynamic algorithm (SDA). However, the algorithm is subjected to settling into local...
This paper presents a modular fuzzy logic control structure with spiral dynamic algorithms (SDAs) and their application in controlling a stair climbing wheelchair specifically in descending task. To ensure smooth and stable stair descending operation using a wheelchair without collapsing or slipping is a very challenging problem. Suitable design and control strategies need to be adopted to achieve...
In this work, a new approach based on spiral dynamic algorithm (SDA) is implemented to optimize the input output of fuzzy scaling factors of a stair ascending operation using a wheelchair. The ascending task is done automatically using interchangeable phases control structure using modular fuzzy logic (IPFL). The value obtained from the SDA optimization is compared with heuristic gain value to access...
In this paper; three optimization algorithms are used to optimize the fuzzy control parameters of a novel structure two-wheeled robotic vehicle with a movable payload. The vehicle has five degrees of freedom and able to steer on irregular and inclined surfaces. Hybrid spiral dynamic bacterial chemotaxis (HSDBC), spiral dynamic algorithm (SDA) and bacterial forging algorithm (BFA) optimizations are...
This paper presents a hybrid optimization algorithm, referred to as hybrid spiral dynamics bacterial chemotaxis (HSDBC) algorithm. HSDBC synergizes bacterial foraging algorithm (BFA) chemotaxis strategy and spiral dynamics algorithm (SDA). The original BFA has higher convergence speed while SDA has better accuracy and stable convergence when approaching the optimum value. This hybrid approach preserves...
This paper presents adaptive versions of spiral dynamics algorithm (SDA) referred to as adaptive SDA (ASDA). SDA is known as fast computing algorithm due to its simplicity in the structure and it has stable convergence response when approaching the optimum point in the search space. However, the performance of SDA is still poor due to incorporation of single radius value during the whole search process...
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