Proved Quality by Online Monitoring and Closed-Loop Control of Pin Insertion

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.807.140 ◽

2015 ◽

Vol 807 ◽

pp. 140-149

Author(s):

Maximiliane Erhardt ◽

Carsten Kaschube ◽

Markus Menacher

Keyword(s):

Closed Loop ◽

Online Monitoring ◽

Robert Bosch Gmbh ◽

Closed Loop Control ◽

Assembly Process ◽

High Quality ◽

Loop Control

To provide high quality in production and assembly processes need to be controlled. This paper analyzes the effect and necessity of online monitoring and closed-loop control of pin insertion. In this investigation pin insertion is an assembly process wherein metallic pins are pressed into polymer structures. The investigations described in this paper are made at the Robert Bosch GmbH and according to their requirements towards production standards, quality and traceability.

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Automatic Control to Prevent Thermal Runaway During Microwave Joining of Ceramics

MRS Proceedings ◽

10.1557/proc-269-265 ◽

1992 ◽

Vol 269 ◽

Cited By ~ 3

Author(s):

Guy O. Beale ◽

Francisco J. Arteaga

Keyword(s):

Control System ◽

Model Equation ◽

Closed Loop ◽

Thermal Runaway ◽

Temperature Control System ◽

Closed Loop Control ◽

High Quality ◽

Loop Control ◽

Heating Model ◽

Linearized Model

ABSTRACTA temperature control system is designed and simulated for microwave joining of ceramics. The objective is to develop a control system for reliable, high quality joints to be produced on a variety of ceramics. The described procedure permits the derivation of a closed-loop configuration for controlling temperature. The ceramics (alumina) heating model equation is linearized around an operating point and represented as a transfer function. Conditions for closed-loop stability with any linearized model are presented and mathematically proven. A computer simulation is implemented for the closed-loop control and numerical integration is used for solving the non-linear heating equations. Results are very good and show that the temperature can be regulated to a set point value and thermal runaway in the ceramics can be prevented.

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The Site Visualization and Closed-Loop Control for 3D Assembly Process

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.621.617 ◽

2014 ◽

Vol 621 ◽

pp. 617-626

Author(s):

Peng Zhang ◽

Jin Song Bao ◽

Zhi Bo Yang ◽

Feng Chun Huang

Keyword(s):

Closed Loop ◽

Control Method ◽

Rapid Development ◽

Three Dimensional ◽

Design Stage ◽

Closed Loop Control ◽

Assembly Process ◽

Process Technology ◽

Loop Control ◽

3D Assembly

With the rapid development of 3D CAD technology, 3D assembly process is playing an important role in the on-site assembly. A closed-loop control method and three-dimensional site visualization technology site is presented. The methodology takes into account CAD design stage, assembly process design, site assembly and site inspection. The method includes three key technologies: the verification process technology of three-dimensional assembly process, optimization and process simulation techniques of site assembly, closed-loop control technology of assembly process quality inspection. Finally, the method and technology has applied in the actual assembly, and achieved good results.

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The Impact of Visual Feedback Type on the Mastery of Visuo-Motor Transformations

Zeitschrift für Psychologie ◽

10.1027/2151-2604/a000084 ◽

2012 ◽

Vol 220 (1) ◽

pp. 3-9 ◽

Cited By ~ 4

Author(s):

Sandra Sülzenbrück

Keyword(s):

Empirical Research ◽

Visual Feedback ◽

Closed Loop ◽

Motor Planning ◽

Visual Input ◽

Closed Loop Control ◽

Loop Control ◽

Feedback Type ◽

Effective Use ◽

The Impact

For the effective use of modern tools, the inherent visuo-motor transformation needs to be mastered. The successful adjustment to and learning of these transformations crucially depends on practice conditions, particularly on the type of visual feedback during practice. Here, a review about empirical research exploring the influence of continuous and terminal visual feedback during practice on the mastery of visuo-motor transformations is provided. Two studies investigating the impact of the type of visual feedback on either direction-dependent visuo-motor gains or the complex visuo-motor transformation of a virtual two-sided lever are presented in more detail. The findings of these studies indicate that the continuous availability of visual feedback supports performance when closed-loop control is possible, but impairs performance when visual input is no longer available. Different approaches to explain these performance differences due to the type of visual feedback during practice are considered. For example, these differences could reflect a process of re-optimization of motor planning in a novel environment or represent effects of the specificity of practice. Furthermore, differences in the allocation of attention during movements with terminal and continuous visual feedback could account for the observed differences.

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