Generic Solution for Generating Towing Tank Carriage Linear Speed Profile Using Stepper Motor

Author(s):  
Mouhamed Bennaya ◽  
Moutaz Abo El-Noor ◽  
Sherif M. Abdelkhalek
Author(s):  
N. Provatorov ◽  
I. Ovcharuk

With the development and distribution of embedded control systems for industrial and household equipment, the generation of speed trajectories for systems controlled by motors, other rotary mechanisms and units remains an urgent task. Adjusting the acceleration profile improves the quality of the system, and the use of adaptive design of automatic controls theoretically increases the speed of work. Implementation of compulsory software control of the speed profile or its automatic generation, according to the current parameters of the system, reduces the risks associated with the human factor and protects the system from operator inaccuracy. Reducing the factor of undesirable interference and creating a model of controlled environment increases the level of production safety, therefore, improving and modernizing the existing approach to managing high-speed industrial systems is a necessary condition for its further development. This article proposes to consider an improved model of a software speed controller that controls the pulse driver of a stepper motor. Based on existing research and corporate solutions during production development used experimentally the adaptive design of the state machine of the system, makes it possible to vary the speed of rotation of the stepper motor during the operation of the system in real time.


Author(s):  
Joewono Prasetijo ◽  
Guohui Zhang ◽  
Zaffan Farhana Zainal ◽  
Wan Zahidah Musa ◽  
Nickholas Anting Anak Guntor

2015 ◽  
Vol 19 (95) ◽  
pp. 24-27
Author(s):  
Elena S. Nazarova ◽  
◽  
Vladimir V. Osadchii ◽  
Sergej Ju. Tobolkin ◽  
◽  
...  
Keyword(s):  

2013 ◽  
Vol 12 (3) ◽  
Author(s):  
Iskendar Iskendar ◽  
Andi Jamaludin ◽  
Paulus Indiyono

This paper describes hydrodynamic model tests of Wing in Surface Effect (WiSE) Craft. These craft  was fitted with  stephull  form in different location on longitudinal flat bottom (stepedhull planning craft) to determine the influences of sticking and porpoising motion performances. These motions are usually occured when the craft start to take-off from water surfaces. The test models with scale of 1 : 7 were comprised of 4 (four) stephull models and 1 (one) non-stephull model  as a comparative study. The hydrodynamic  tests were performed with craft speed of 16 – 32 knots (prototype values) in Towing Tank at UPT. Balai Pengkajian dan Penelitian Hidrodinamika (BPPH), BPPT, Surabaya. The resistance (drag) was measured by dynamo meter and the trim of model (draft changing at fore and aft  of model due to model speed) was measured by trim meter. By knowing the value of model trim, the wetted surface area can be determined. Then, the lift forces were calculated based on these measured values. The model test results were presented on tables and curves.  Test results show that models  with step located far away from center of gravity of the WiSE craft tend to porpoising and sticking condition, except if the step location on the below of these center of gravity. While model without step tends to sticking conditions.


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