Results 21 to 30 of about 23,835,912 (305)
The Assessment of Straightness and Flatness Errors Using Particle Swarm Optimization [PDF]
, 2013 The straightness and flatness errors are generally assessed by using the Least Squares Method (LSM). However, the results obtained from LSM often overestimate the tolerances, and are not consistent with the ISO standards’ definitions.
Cui, Changcai +10 more
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Flatness Based Control of a HVAC System
Information Technology And Control, 2017 This paper studies the flatness-based control of a nonlinear multi-input multi-output heating, ventilating and air conditioning (HVAC) system. First, a novel method for checking flatness property is used to verify that the given HVAC model is flat and that the flat outputs are the temperature and the humidity ratio of the thermal space.
Arvo Kaldmäe, Ülle Kotta
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Heredity and evolution laws of flatness defects in steel strip temper rolling processes
工程科学学报, 2015 Three-dimensional temper rolling processes are simulated by nonlinear elastoplastic finite element software called ABAQUS. In this simulation, the initial flatness defects of steel strips are modeled by the temperature field, and the adjustment effect of
LI Bo, ZHANG Qing-dong, ZHANG Xiao-feng
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Linear Active Disturbance Rejection Control for Double-Pendulum Overhead Cranes
IEEE Access, 2021 Because of the complexity, non-linearity, and under-actuated features of double pendulum overhead cranes, a control method based on linear active disturbance rejection control (LADRC) and differential flatness theory is proposed to realize accurate ...
Lin Chai +3 more
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Cluster analysis of strip flatness characteristics for ultra-wide cold rolling mills
工程科学学报, 2016 In order to master the flatness characteristics of strips with different widths for ultra-wide tandem cold rolling mills, taking the sufficient flatness detection data of 1900 mm strips from 2180 mm cold rolling mills as a research object and considering
LI Hong-bo +5 more
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Model-based decoupling control method for dual-drive gantry stages : A case study with experimental validations [PDF]
, 2013 La version éditeur de cet article est disponible à l'adresse suivante : http://dx.doi.org/10.1016/j.conengprac.2012.10.010Industrial motion control of dual–drive gantry stages is usually performed by position controllers acting independently on each ...
COLEMAN, Ralph +4 more
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Flatness-Based High Frequency Control of a Hydraulic Actuator [PDF]
Journal of Dynamic Systems, Measurement, and Control, 2011 This paper presents the design and implementation of a nonlinear feedforward control algorithm for a hydraulic actuator driven by a multistage servo valve. Combined with a conventional feedback control algorithm, high frequencies can be achieved even for large-scale strokes.
Kock, Florian, Ferrari, Cornelius
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Sensors, 2021 Surface flatness assessment is necessary for quality control of metal sheets manufactured from steel coils by roll leveling and cutting. Mechanical-contact-based flatness sensors are being replaced by modern laser-based optical sensors that deliver ...
Marcos Alonso +4 more
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Fuzzy Based Flatness Control of an Induction Motor [PDF]
, 2011 Induction motors are widely used in industry and many other fields due to its robustness, reliability, low price and free maintenance. Control of an induction motor is a complicated task because of the unknown disturbances and the uncertainty. This paper
Zhang, Liang, Fan, Liping
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IEEE Access, 2019 Vehicle handing stability under the combined acceleration steering and braking steering conditions has a great impact on the vehicle safety. Therefore, the coupled steering and driving/braking stability control is essential.
Yuqiong Wang +4 more
doaj +1 more source