Оптимизация технического решения пьезоэлектрического актюатора
Description of batch piezo actuators, formulas for calculation of absolute and relative deformations in first and second approximation are brought. Example of modification of machine methods for more accurate calculation of anisotropic solids and more specifically of piezo ceramics is shown. Triaxial piezo actuator solution is suggested and it’s work scheme is described. Disadvantages of batch piezo actuators and methods of their removal are shown
A curve in a metric space equipped with the distance , where is a (possibly unbounded) interval, is called self-contracted, if for any triple of instances of time with one has . We prove that if is a finite-dimensional normed space with an arbitrary norm, the trace of is bounded, then has finite length, that is, is rectifiable, thus answering positively the question raised in Lemenant's paper [‘Rectifiability of non Euclidean planar self-contracted curves’, Confluentes Math. 8 (2016) 23–38].
Heat pipes application in nanotechnological equipment is considered on examples of probe movement manipulators. Approaches to improvements of manipulators for effective heat extraction from operating area are shown.
Base concepts of finite elements method are given. Machine experiment with piezoceramic actuator is made. Machine experiment results are compared with results of theoretical researches in current area.
Generalized error-locating codes are discussed. An algorithm for calculation of the upper bound of the probability of erroneous decoding for known code parameters and the input error probability is given. Based on this algorithm, an algorithm for selection of the code parameters for a specified design and input and output error probabilities is constructed. The lower bound of the probability of erroneous decoding is given. Examples of the dependence of the probability of erroneous decoding on the input error probability are given and the behavior of the obtained curves is explained.