Dynamic analysis of an XY positioning table

Abstract

The dynamic modeling and analysis of a novel XY positioning table are presented in this paper. The XY table is directly driven by two linear voice coil motors (LVCMs), and Xand Y-axes motion decoupling is realized by using a novel flexible decoupling mechanism. Considering the characteristics of XY table, the dynamic model of X-and Y-axes servomechanisms are established through bond graph method, respectively, and then the state space equations are derived. The result of dynamic analysis can provide important information for the controller design.

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“…In our previous study, we demonstrated that Schisandrin B attenuated the inspiratory and expiratory resistances in sensitized rats, and could inhibit ASMC proliferation and migration. 14 28 Zhou et al found that miR-150 promoted renal fibrosis by increasing profibrotic molecules through down-regulation of SOCS1. 29 Honda et al reported that down-regulation of miR-150 contributed to the constitutive Type I collagen overexpression in scleroderma dermal fibroblasts via the induction of integrin β3.…”

“…13 In 2015, Lv et al proved that Schisandrin B inhibited the proliferation of human lung adenocarcinoma A549 cells. 15 In 2016, Zhang et al 14 reported Schisandrin B could inhibit the proliferation of ASMCs. Later, Jiang et al 16 found that Schisandrin B inhibited the proliferation and invasion of glioma cells.…”

“…The ovalbumin (OVA) model was established as previously reported. 14 Rats were treated with OVA (10 mg, Thermo Scientific, Waltham, MA) subcutaneously, and aluminium hydroxide (200 mg) that dissolved in NaCl solution (0.9%, 1 mL) and inactivated Bordetella pertussis (1 mL) at the first and eighth day. In control group, rats were treated with an equal volume of saline.…”

Design variable structure fuzzy control based on deep neural network model for servomechanism drive system

“…These types of machines need accurate motion control to produce high-quality products [2], [3]. Also, the high speed and high accuracy position applications have been rapidly and broadly developed to facilitate the complex automatic processes in the industrial field [4], [5]. Generally, the servomechanism systems don't have an accurate estimated parameter for friction and backlash models which leads to system uncertainty.…”

Real-time implementation of an enhanced nonlinear PID controller based on harmony search for one-stage servomechanism system

“…The optimization techniques cannot carry out it practically in real time where it takes a long time to find the optimum solution. So, we resort to the offline tuning using an accurate mathematical model for the system but, the lack of system parameters data is an obstacle to achieve this purpose [9].…”