Entwicklung eines aktiven Kompensationstisches*/Development of an active compensation table

Uhlmann, Eckart; Thom, Simon; Kianinejad, K.; Kushwaha, Shashwat; Rathenow, P.

doi:10.37544/1436-4980-2015-07-08-15

2015

DOI: 10.37544/1436-4980-2015-07-08-15

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Entwicklung eines aktiven Kompensationstisches*/Development of an active compensation table

Eckart Uhlmann¹,

Simon Thom²,

K. Kianinejad³

et al.

Abstract: Die Anforderungen an Werkzeugmaschinen hinsichtlich der Arbeitsgenauigkeit sowie Produktivität steigen stetig. Werkzeugmaschinen, die diesen Anforderungen nicht genügen, werden als „inaktuell“ angesehen. Am Institut für Werkzeugmaschinen und Fabrikbetrieb (IWF) der Technischen Universität Berlin wurde ein Kompensationstisch zur aktiven Genauigkeitssteigerung inaktueller Werkzeugmaschinen entwickelt.   Requirements regarding machine tools‘ accuracy and productivity are raising const… Show more

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Simplification of the Model of Piezoelectric Actuator Control Based on Preliminary Measurements

Baraniuk

Drossel

2020

Actuators

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This article describes a mathematical model simplification, designed to automate the iterative process of non-circular drilling with a precise shape. This model has been optimized for systems that already have experimental data for processing and analysis. Additionally, using optimization steps, the model can be used for systems with insufficient experimental data with a self-learning opportunity. The high-end model can be used for drilling systems represented as a “black box” without knowing of any parameters of the system. The simplification and assumptions algorithm is based on controlling the input signal for non-circular drilling in the cylinders of internal combustion engines using a drilling machine controlled by 8 piezoelectric actuators. The total dynamics of this system is unknown and consists of the dynamics of electrical converters, piezo-kinematics, and mechanics. Simplification is carried out starting from the methods of diacoptics for a complex system with different process-flow rates, and ending with one or the sum of linear models valid for a given system of assumptions.

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Simplification of the Model of Piezoelectric Actuator Control Based on Preliminary Measurements

Baraniuk

Drossel

2020

Actuators

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Smart Modulation for Control Systems with High Regulation Capabilities for Cooling Systems Optimisation and Carbon Footprint Reduction in Industry

Baraniuk

Drossel

2021

Energies

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Nowadays, every large enterprise is concerned about reducing CO2 emissions. Along with legislation, management, packaging, and transportation decisions, optimising the operation of automated systems in the industry is important. Overheating processes or large cooling systems of one machine during product assembly may seem minor but at the industry level it is quite significant. Either an optimisation of cooling systems or an intelligent machine control which will prevent heat strokes and allow the transition to passive cooling of the whole system is an important issue for improving machine tools efficiency and contributing therefore to CO2 reduction in the industry sector. This research is a transitional phase from the creation of a control system to solve the problems of resonance in the control of systems with parallel piezo kinematics, which were designed to automate the iterative process of non-circular drilling with a precise shape and the subsequent research on the implementation of smart control to optimise the cooling of industrial machines. The total dynamics of the example system in this research is unknown and consists of the dynamics of electrical converters, piezo kinematics, and mechanics. The control signal of this system is generated by the model of the system state with assumptions and simplifications in combination with machine learning techniques considering the previous errors of the transient characteristics with the possibility of re-drilling without damaging the workpiece and with possibility of further trainings to eliminate the iterative process in general. Algorithms for further training at different resonances with a drilling depth change for cylinders of internal combustion engines are offered. These algorithms are proposed for accurate transmission of the input signal amplitude even in resonant situations, power optimisation, increase the system efficiency, as well as reducing the carbon footprint when used in industry in specific applications.

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Entwicklung eines aktiven Kompensationstisches*/Development of an active compensation table

Cited by 2 publications

References 0 publications

Simplification of the Model of Piezoelectric Actuator Control Based on Preliminary Measurements

Simplification of the Model of Piezoelectric Actuator Control Based on Preliminary Measurements

Smart Modulation for Control Systems with High Regulation Capabilities for Cooling Systems Optimisation and Carbon Footprint Reduction in Industry

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