Prozessstabilität von parallelen Drehprozessen*/Process stability of parallel turning processes

2016 ◽  
Vol 106 (05) ◽  
pp. 289-293
Author(s):  
C. Prof. Brecher ◽  
A. Epple ◽  
S. Neus ◽  
M. Fey
Keyword(s):  
Dynamic Process ◽  
Cutting Tools ◽  
Process Stability ◽  
Modelling Techniques ◽  
Machine Systems ◽  
Machine Interaction ◽  
Process Machine Interaction

Im industriellen Umfeld werden zur Steigerung der Produktivität zunehmend Maschinensysteme mit mehreren parallel zerspanenden Werkzeugen eingesetzt. Die dynamische Prozess-Maschine-Interaktion dieser Maschinensysteme ist bisher jedoch kaum untersucht. Für den Fall des parallelen Drehens werden in diesem Fachbeitrag Modellierungen und Untersuchungen zum Einfluss unterschiedlicher Parameter auf die Prozessstabilität vorgestellt.   Industry increasingly uses machine systems with multiple parallel cutting tools to enhance productivity. However, the dynamic process-machine-interaction of these machine systems has scarcely been investigated. With a view to parallel turning, this paper presents modelling techniques and investigates how various parameters affect process stability.

Schwingungsphänomene beim Verzahnungshonen*/Vibration phenomena during gear honing

2017 ◽  
Vol 107 (05) ◽  
pp. 307-312
Author(s):  
C. Prof. Brecher ◽  
C. Kiesewetter ◽  
M. Kampka ◽  
A. Epple
Keyword(s):  
Dynamic Process ◽  
Scientific Research ◽  
Gear Honing ◽  
Geometric Quality ◽  
Machining Operations ◽  
Machine Interaction ◽  
Process Machine Interaction

Die theoretische Leistungsfähigkeit von Verzahnungshonmaschinen lässt sich häufig aufgrund selbsterregter Schwingungen und Abweichungen von der vorgeschriebenen Verzahnungsqualität nicht vollständig ausnutzen. Bislang existieren kaum Untersuchungen für die dynamische Prozess-Maschine-Interaktion beim Verzahnungshonen. Im Fachbeitrag werden daher instabile Bearbeitungsprozesse an einer Verzahnungshonmaschine untersucht.   The theoretical productivity of gear honing machines often cannot be fully utilized because of self-excited vibrations and deviations of the required geometric quality of gears. However, so far there is almost no scientific research on the dynamic process-machine-interaction for gear honing. This article deals with the investigation of unstable machining operations in a gear honing machine.

Prozess-Maschine-Interaktion des Verzahnungshonens/Process-machine-interaction for gear honing

2021 ◽  
Vol 111 (05) ◽  
pp. 336-342
Author(s):  
Christian Brecher ◽  
Thomas Bergs ◽  
Caroline Kiesewetter-Marko ◽  
Maximilian Schrank ◽  
Stephan Neus ◽  
...  
Keyword(s):  
Research Project ◽  
Machine Model ◽  
Machine Performance ◽  
Gear Honing ◽  
Process Forces ◽  
Coupled Process ◽  
Machine Interaction ◽  
Process Machine Interaction ◽  
A Current

Für die Endbearbeitung von Zahnrädern wird unter anderem das Verzahnungshonen eingesetzt. Die theoretisch erreichbare Maschinenleistung kann aufgrund auftretender Schwingungen eingeschränkt sein. In einem aktuellen Forschungsprojekt zur Abbildung der Prozess-Maschine-Interaktion beim Verzahnungshonen werden die Eigenschaften der Maschine und die Prozesskräfte berücksichtigt. In diesem Beitrag wird ein gekoppeltes Prozess-Maschine-Modell für das Verzahnungshonen vorgestellt.   One of the processes used for finishing gears is gear honing. The theoretically achievable machine performance can be limited due to occurring vibrations. A current research project for modelling the process-machine interaction in gear honing considers the characteristics of the machine and the process forces. This article presents a coupled process-machine model for gear honing.

Engineering of a Virtual Community Platform

2004 ◽  
pp. 1-27
Author(s):  
Kerstin Rose ◽  
Leon Urbas ◽  
Alexander Kunzer ◽  
Martin Christof Kindsmuller ◽  
Sandro Leuchter
Keyword(s):  
Interaction Design ◽  
Information Exchange ◽  
Virtual Community ◽  
Distributed Teams ◽  
Online Journal ◽  
Human Machine Interaction ◽  
Internet Portal ◽  
Shared Workspaces ◽  
Machine Systems ◽  
Machine Interaction

UseWorld.net is a federated user adaptive Internet portal that supports information exchange and cooperation in research and development in the area of human machine interaction. It has been jointly developed with members of Center of Human-Machine-Systems (ZMMS, TU Berlin), Chair of Industrial Engineering and Ergonomics (RWTH Aachen), Chair for Industrial Design (University of Essen) and Center for Human-Machine-Interaction (ZMMI, University of Kaiserslautern). The portal is operated by an independent open incorporated society. It integrates manifold information services (online journal, different thematic link collections, conference database, expert database) and a sophisticated cooperation component to support distributed teams by providing shared workspaces. Software agents for community awareness tasks and a clean and consistent interaction design complete the solution and support the portal’s innovative operation concept, which intends to activate the users to become editors.

scholarly journals Modeling and Simulation of Process-Machine Interaction in Grinding of Cemented Carbide Indexable Inserts

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Wei Feng ◽  
Bin Yao ◽  
BinQiang Chen ◽  
DongSheng Zhang ◽  
XiangLei Zhang ◽  
...  
Keyword(s):  
Modeling And Simulation ◽  
Dynamic Instability ◽  
Process Models ◽  
Cemented Carbide ◽  
Machining Process ◽  
Grinding Wheel ◽  
Grinding Process ◽  
Machine Model ◽  
Machine Interaction ◽  
Process Machine Interaction

Interaction of process and machine in grinding of hard and brittle materials such as cemented carbide may cause dynamic instability of the machining process resulting in machining errors and a decrease in productivity. Commonly, the process and machine tools were dealt with separately, which does not take into consideration the mutual interaction between the two subsystems and thus cannot represent the real cutting operations. This paper proposes a method of modeling and simulation to understand well the process-machine interaction in grinding process of cemented carbide indexable inserts. First, a virtual grinding wheel model is built by considering the random nature of abrasive grains and a kinematic-geometrical simulation is adopted to describe the grinding process. Then, a wheel-spindle model is simulated by means of the finite element method to represent the machine structure. The characteristic equation of the closed-loop dynamic grinding system is derived to provide a mathematic description of the process-machine interaction. Furthermore, a coupling simulation of grinding wheel-spindle deformations and grinding process force by combining both the process and machine model is developed to investigate the interaction between process and machine. This paper provides an integrated grinding model combining the machine and process models, which can be used to predict process-machine interactions in grinding process.

VIRTUAL MACHINING SYSTEM ENGINE FOR SIMULATION OF THE PROCESS MACHINE INTERACTION

2012 ◽  
Vol 2012 (01) ◽  
pp. 310-314
Author(s):  
Andreas Archenti ◽  
Mihai Nicolescu ◽  
Thomas Lundholm
Keyword(s):  
Virtual Machining ◽  
Machining System ◽  
Machine Interaction ◽  
Process Machine Interaction

The Finite Intersection Test: A New Multivariate Statistical Technique Applicable to the Evaluation of Complex Systems

1980 ◽  
Vol 24 (1) ◽  
pp. 453-457 ◽  
Author(s):  
John M. Reising ◽  
P.R. Krishnaiah
Keyword(s):  
Statistical Technique ◽  
System Evaluation ◽  
Finite Intersection ◽  
Multivariate Statistical ◽  
Human Machine Interaction ◽  
Single Measure ◽  
Simultaneous Comparison ◽  
Machine Systems ◽  
Machine Interaction ◽  
Intersection Test

In complex human-machine systems, multidimensional behavior is required of the operator. Consequently, there is no commonly-accepted, single measure of operator performance which can be utilized to determine the efficiency of the human-machine interaction. Because the behavior is multidimensional, multivariate statistics must be used to analyze the multiple measures gathered during system evaluation. While multivariate analogues to analysis of variance (ANOVA) exist, there are also a number of candidate multivariate analogues to the post-ANOVA simultaneous comparison tests. This paper describes a newly developed multivariate, simultaneous comparison test–Finite Intersection Test (FIT)–and provides an example of FIT's application to the analysis of multivariate data.

Human-Machine Trust Interaction

2010 ◽  
Vol 1 (4) ◽  
pp. 61-74 ◽  
Author(s):  
Conghui Liu
Keyword(s):  
Electronic Commerce ◽  
Intelligent System ◽  
Fast Growth ◽  
Human Machine Interaction ◽  
Current State ◽  
Main Factors ◽  
Machine Systems ◽  
Machine Interaction

Improving user’s trust appropriately could help in designing an intelligent system and make it work effectively, especially with the fast growth of Web-base technology. This chapter introduces the solutions of improving user’s trust in human-machine interaction (HMI), especially for electronic commerce (e-commerce). The author firstly reviews the concept of trust and the main factors that affects the appropriateness of user’s trust in human-machine interaction, such as the properties of machine systems, the properties of human, and context. On the basis of these, the author further discusses the current state, challenges, problems and limitations of establishing and improving the user’s trust in human-machine interaction. Finally, the author summarizes and evaluates the existing solutions for improving the user’s trust appropriately in e-commerce environment.

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