Novel approach for machine tool maintenance modelling and optimization using fleet system architecture

2018 ◽  
Vol 126 ◽  
pp. 47-62 ◽  
Author(s):  
Manish Rawat ◽  
Bhupesh Kumar Lad
Keyword(s):  
Machine Tool ◽  
System Architecture ◽  
Novel Approach ◽  
Modelling And Optimization

Detektion von Bauteilfehlern aus Maschinendaten/Detection of workpiece flaws out of machine tool data – possibilities and limits

2019 ◽  
Vol 109 (11-12) ◽  
pp. 828-832
Author(s):  
M. Weigold ◽  
A. Fertig ◽  
C. Bauerdick
Keyword(s):  
Quality Assurance ◽  
Machine Tool ◽  
Machine Tools ◽  
Machining Time ◽  
Parallel Detection ◽  
High Data ◽  
Novel Approach ◽  
Data Rates ◽  
High Data Rates

Durch zunehmende Vernetzung und Digitalisierung von Werkzeugmaschinen und Automatisierungskomponenten ergibt sich die Möglichkeit, Signale mit hohen Datenraten und großer Vielfalt aufzuzeichnen. Der vorliegende Beitrag beschreibt erste Untersuchungen zur Realisierbarkeit einer prozessparallelen Detektion von Bauteilfehlern auf Basis interner Werkzeugmaschinendaten. Dabei werden Potenziale und Grenzen für diesen neuartigen Ansatz zur hauptzeitparallelen Qualitätssicherung aufgezeigt.   The increasing networking and digitization of machine tools and automation components provides the opportunity to record signals with high data rates and great diversity. This paper describes first investigations on the feasibility of a process-parallel detection of component defects on the basis of internal machine tool data. Potentials and limits for this novel approach to quality assurance parallel to machining time are presented.

scholarly journals Using the Spindle Cooling Temperature as a Tool for Compensating the Thermal Deformation of Machines

10.14311/1147 ◽  
2010 ◽  
Vol 50 (1) ◽  
Author(s):  
J. Vyroubal
Keyword(s):  
Machine Tool ◽  
Temperature Measurement ◽  
Thermal Error ◽  
Complex Problem ◽  
Multinomial Regression ◽  
High Expectations ◽  
Cooling Liquid ◽  
Novel Approach ◽  
Thermal Error Compensation ◽  
Very High

Thermal error compensation of machine tools is a relatively complex problem nowadays. Machine users have very high expectations, and it is necessary to use all means to improve the cutting accuracy of existing machines. This paper deals with a novel approach, which combines standard temperature measurement of a machine tool and new temperature measurement of the spindle cooling liquid. A multinomial regression equation is then used to calculate the compensation correction of the position of the tool. This calculation does not critically overload the control system of the machines, so no external computing hardware is required. The cooling liquid approach improves the accuracy of the machine tool over an operational time of several hours. 

scholarly journals A Kinematic Model to Compensate the Structural Deformations in Machine Tools Using Fibre Bragg Grating (FBG) Sensors

2016 ◽  
Author(s):  
Francesco Aggogeri ◽  
Alberto Borboni ◽  
Rodolfo Faglia ◽  
Angelo Merlo ◽  
Nicola Pellegrini
Keyword(s):  
Machine Tool ◽  
Real Time ◽  
Kinematic Model ◽  
Experimental Tests ◽  
Bragg Grating ◽  
Fibre Bragg Grating ◽  
Machining Performance ◽  
Novel Approach ◽  
Structural Deformations ◽  
Fbg Sensors

Structural deformations are one of the most significant factor that affects machine tool (MT) positioning accuracy. These induced errors are complex to be represented by a model, nevertheless they need to be evaluated and predicted in order to increase the machining performance. This paper presents a novel approach to calibrate a machine tool in real-time, analyzing the thermo-mechanical errors through Fibre Bragg Grating (FBG) sensors embedded in the MT frame. The proposed configuration consists of an adaptronic structure of passive materials, Carbon Fibre Reinforced Polymers (CFRP), equipped by FBG sensors that are able to measure in real-time the deformed conditions of the frame. By using a proper thermo-mechanical kinematic model, the displacement of the end effector may be predicted and corrected when it is subjected to external undesired factors. By starting from a set of FE simulations to develop a model able to describe the MT structure stresses, a prototype has been fabricated and tested. The scope was to compare the numerical model with the experimental tests using FBG sensors. The experimental campaign has been performed varying the structure temperature over time and measuring the tool tip point (TTP) positions. The obtained results showed a substantial matching between the real and the predicted position of TTP confirming the effectiveness of the proposed calibration system.

scholarly journals Advanced Traffic Signal Control System for Emergency Vehicles

2019 ◽  
Vol 8 (3) ◽  
pp. 1242-1246
Keyword(s):  
Control System ◽  
System Architecture ◽  
Traffic Signals ◽  
Signal Control ◽  
Traffic Signal Control ◽  
The Novel ◽  
Novel Approach ◽  
Emergency Vehicles ◽  
Pass Through ◽  
Smart Traffic

This paper introduces the novel approach to handle the situation for emergency vehicles like ambulance and fire trucks to avoid traffic to reach the destination in time in order to save the lives. This system architecture is based on Internet-ofThings (IoT) using cloud at its center. The proposed system uses real-time GPS to track the location of the vehicle and update the same to cloud , smart traffic signals which are in present in route of the vehicle are notified the same. system maintains the details on the emergency vehicles to pass through the traffic with no or minimum waiting time, thus reducing the number of deaths during the travel to hospital and conditions to reduce the loss of property in case of fire emergency

scholarly journals Dynamic Interaction Between Precision Machine Tools and Their Foundations

2020 ◽  
Vol 14 (3) ◽  
pp. 386-398
Author(s):  
Bernd W. Peukert ◽  
◽  
Andreas Archenti
Keyword(s):  
Machine Tool ◽  
Machine Tools ◽  
Dynamic Interaction ◽  
Machining Accuracy ◽  
Precision Machine ◽  
Novel Approach ◽  
Machine Tool Structures ◽  
Manufacturing Accuracy ◽  
Precision Machine Tools ◽  
The Individual

The manufacturing accuracy of modern machine tools strongly depends on the placement of the machine tool structure on the factory’s foundation. Civil engineering knows a variety of foundation types and factory planners must carefully consider local circumstances such as the size and the properties of the regional subsoil as well as the individual requirements of machine tools. Two of the major reasons for the effect of the foundation onto the machining accuracy are the added stiffness and the increased mass from the installation site’s foundation. A change of these characteristics greatly affects the dynamic characteristics of the overall machine tool and therefore also the machining dynamics. Although some general rules and guidelines exist for the design of foundations, their dynamic interaction with the supported precision machine tool structures is not well understood yet. This paper presents a series of measurements on two different types of machine tool foundations and highlights the characteristic differences in their dynamic interaction. It also proposes a novel approach to validate the conclusions with the use of foundation and machine tool scale models. These results can serve factory planners of precision targeting shop floors as a valuable guide for deciding on a suitable foundation for lowering the individual machine tool vibrations and/or reducing the dynamic interaction between closely located machine tools.

An Intermediate Approach to Communcation and Sensor Interfacing Standardization for Marine Gas Turbine Engines

2005 ◽  
Author(s):  
James J. Nicolo ◽  
David M. Zipkin ◽  
John Scharschan
Keyword(s):  
Gas Turbine ◽  
System Architecture ◽  
Digital Controller ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Turbine Generator ◽  
Novel Approach ◽  
Technology Upgrade ◽  
And Control

This paper details the on-going effort of NAVSEA Philadelphia to provide a command and control technology upgrade to the Model 139 Gas Turbine Generator Set, while deploying a novel approach to this process using Open System Architecture Condition Based Maintenance (OSA-CBM) archetype. The long-term goal of the process being implemented is to serve as the foundation for a communication and interfacing standardization for the marine gas turbine (GT) community. The topics to be discussed in this essay span from investigation to a proposed design, which includes physical measurement of parameters, sensor-Full Authority Digital Controller (FADC) interfacing, and overall system architecture.

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