Інформаційне та математичне забезпечення САПР гідравлічних мікроелектромеханічних систем

Ключевые слова: гидравлические микроэлектромеханические системы, математические модели, САПР гидравлических микроэлектромеханических систем, числовые методы.

Denysyuk P. Yu. Information and mathematical support software of the computer-aided design systems for hydraulic micromechanical systems. - Manuscript.

PhD thesis (candidate of technical science) by speciality 05.13.12 - computer-aided systems for design jobs. - Lviv Polytechnic Nationaln University, Lviv, 2007.

The thesis presents the decision of the important scientific task - the development of mathematical, information and linguistic support methods and software tools for the computer-aided design (CAD) systems in the domain of hydraulic micro-electromechanical systems.

The thesis describes analysis of hydraulic microelectromechanical systems components and software systems for their design and development. The analysis allowed both conducting of components classification to determine the essential components of hydraulic microelectromechanical systems and definining the basic shortcomings of the existing software tools and design methods. The thesis presents the developed mathematical model of thermoliquid actuators that uses Van der Waals' equation for the first time to determin the pressure of gas and liquid mixture on the membrane and biharmonical equations to determine the bending of the membrane with the following use of the finite elements method that allowes increasing the efficiency of design. To determine the distribution of the temperature the heat conductivity equation is used. During solving the abovementioned equations in the partial derivatives with the proper initial and border conditions the finite differences method is used. This allowed taking into account unstationary processes and getting initial parameters with the higher exactness. The mathematical models of micropump with electrostatic and piezoelectric drives are designed for automated design on the component level which utilizes the theory of the thin plates. This allowed defining the devices initial parameters with different structural implementation of resilient component. The data structure for geometrical parameter specification is designed as well as physical and mechanical properties of constructions materials of microhydraulic devices which consists of the following fields: geometrical sizes, physical properties of material, description of constructions that allows to broad the functional possibilities of database of the microelectromechanical systems CAD's structures and increase the efficiency of handling the mathematical models library. The library of mathematical models of the microhydraulic systems is improved for the threeleveled automated design which differs from the existing ones by possibility of creation the single information model of object that gives the possibility of using the mathematical models of different complication and simplify modification of information model of object. The developed format of description of constructions of the microhydraulic systems and the language of description of mathematical models are used for realization of the information and linguistic software of the system for the design of hydraulic microelectromechanical systems “MicroHS”. The developed mathematical, information and linguistic software of hydraulic microelectromechanical systems computer-aided design is used for design and development in the “MicroHS” system.

Key words: hydraulic microelectromechanical systems, mathematical models, CAD of hydraulic microelectromechanical systems, computational methods.

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