Numerical modelling of piezotransducers of microrobots with nanometric resolution

Artūras Grigoravičius

Doctoral dissertation

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The aim of the research was to create the numerical models of piezotransducers of microrobots with nanometric resolution, which would allow to define rational geometrical parameters and movement trajectories of the contact points, using automate process of numerical modelling.

The analysis of numerical modelling works of microrobots with nanometric resolution was performed in the dissertation, tools of numerical modelling of microrobots with nanometric resolution were investigated. The spatial and planar models of the piezotransducers of microrobots with nanometric resolution were created and explored.

The introductory chapter discusses the research problem, the relevance of the research, formulates the goal and objectives of the research, presents the methods used, and describes the scientific novelty and practical value of the work.

In the first section, in the theoretical analysis of the studies the characteristics of the piezotransducers of microrobots with nanometric resolution were reviewed. The main directions of researches were presented, Lithuanian and foreign scientific researches and related problems were overviewed. „Vibrotechnika“ scientific school and working groups in mechanical engineering and information technologies science fields were presented.

In the second section, researches of numerical modelling tasks were developed. The tools and methods that were used to solve the tasks were described. The finite element method application in modelling of piezotransducers, the establishment of rational geometrical parameters in planar and spatial piezotransducers, the recognition of eigenforms using the partial and global dominance coefficients, the research methods of the elliptical movement trajectory of the contact points were presented. The mechanism of numerical modelling tools automation was described.

The discrete models of the planar and multi-dimensional piezotransducers of microrobots with nanometric resolution were designed and investigated. The results are summarized in the third and fourth chapters and the final conclusions are given at the end of the work.

Seven articles on the topic of dissertation were published: four –in 
peer-reviewed scientific journals listed in the Thomson ISI (Web of Science) list, one – in other databases, two – in refereed foreign international conference materials. Three presentations were given on the topic of dissertation at conferences in Lithuania and abroad.

Read electronic version of the book:

DOI: https://doi.org/10.20334/2263-M

Book details

Data sheet

Year:
2014
ISBN:
978-609-457-718-5
Imprint No:
2263-M
Dimensions:
145×205 mm
Pages:
158 p.
Cover:
Softcover
Language:
Lithuanian
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