Мехатроника 1 Бөлім mechatronics
Criteria for integrating of mechatronic modules
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Мехатроника 1 том Баймухамедов М.Ф., Джаманбалин Қ.Қ.,Ақгул м.К.
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- The functional integration index J F
- The index of functional-structural integration of J S
| 3.2 Criteria for integrating of mechatronic modules
Let’s consider some criteria by which it is possible to compare different models of mechatronic modules and their design solutions depending on the level of functional, structural and constructive integration. Such criteria are: indicators of functional, functional-structural, structural- structural integration, mechatronism and additional quality, structural redun- dancy, structural connectivity and compactness, functional load, kinematic accuracy, reliability, etc. The functional integration index J F is defined as the ratio of the number of functional transformations performed in the mechatronic module N F to the total number of N FИИM transformations performed in the intelligent mechatronic module [9]: (3.1) In the motion module N F = 2, in the mechatronic motion module N F = 3, in an intelligent mechatronic module N FИИM = 7. 196 The indicator of functional integration makes it possible to estimate the specific functionality of the mechatronic module with respect to the intelligent mechatronic module. The more is the indicator of functional integration, the closer the mechatronic module to the intelligent mechatronic module. There- fore, in the synthesis, this parameter should be increased, which leads to an improvement in the quality of the mechatronic module. The index of functional-structural integration of J S before is the ratio of the number of functional transformations N F in the mechatronic module to the number of basic structural blocks N S that are necessary for performing functional transformations [9]: (3.2) If each functional transformation is carried out by one structural block, then: for the motion module N S = 2 for the mechatronic modulus of motion N S = 3 for an intelligent mechatronic module N S = 7. The indicator of functional-structural integration shows the specific stru- ctural (level of integration) of the mechatronic module when performing the required functional transformations by a different number of structural blocks. It should be kept in mind that the same functions can be implemented by a different number of building blocks. Reducing their number with a constant number of functional transformations also leads to a reduction in the number of inter-unit interfaces, which positively affects the reliability and quality of the mechatronic module. So, for example, if instead of an engine and a mechanical converter a high- torque motor is used, the number of structural blocks will decrease by one. Then the indicator of functional-structural integration will be: • for the motion module J S = 2/1 = 2 • for the mechatronic motion module J S = 3/2 = 1,5 • for an intelligent mechatronic module J S = 7/6 = 1,167. Thus, when designing mechatronic modules, it is necessary to strive to increase the index of functional-structural integration, which leads to a reduc- tion in the number of structural blocks and, accordingly, the number of basic structural elements. |