scholarly journals Cutting effectiveness increase at expense of adaptive control in digital production systems

2020 ◽  
Vol 0 (4) ◽  
pp. 39-48 ◽  
Author(s):  
Aleksandr Ingemansson
Keyword(s):  
Adaptive Control ◽  
Cutting Force ◽  
Production Systems ◽  
Mill Operation ◽  
Digital Production ◽  
Definition Of

The paper is dedicated to the development of solutions for cutting effectiveness increase at the expense of the potentialities use of modern NC automated equipment and these solutions application for the formation of digital production systems (DPS) for machining. There are developed computation formulae allowing the definition of cutting force values during turning and mill operation aimed for technological pre-production (TP) and for the adaptive control of NC equipment in DPSs.

scholarly journals THE ABILITY RESEARCH OF ADAPTIVE CONTROL OF SURFACE INTEGRITY DEFORMED CONDITION AND WORKING PERFORMANCE OF INSTRUMENTS IN DIGITAL PRODUCTION SYSTEMS

2020 ◽  
pp. 22-26
Author(s):  
A. Ingemansson
Keyword(s):  
Adaptive Control ◽  
Surface Integrity ◽  
Production Systems ◽  
Digital Production ◽  
Machined Parts ◽  
Working Performance

The ability of adaptive control of stability of machined parts surface integrity deformed condition and stability of working performance of cutting instruments in digital production systems is justified.

scholarly journals BASIC PATTERNS OF METHODOLOGY OF TECHNOLOGICAL PREPARATION OF PRODUCTION AND ADAPTIVE CONTROL IN DIGITAL PRODUCTION SYSTEMS FOR METALWORKING

2021 ◽  
pp. 15-18
Author(s):  
A. R. Ingemansson
Keyword(s):  
Adaptive Control ◽  
Production Systems ◽  
Technological Preparation ◽  
Metalworking Industry ◽  
Digital Production

In the article the basic patterns of developed methodology of technological preparation of production and adaptive control of stability and quality in automated metalworking industry are described.

scholarly journals THE CALCULATION DEPENDENCIES FOR THE CONTROL OF TURNING AND MILLING IN DIGITAL PRODUCTION SYSTEMS

2020 ◽  
pp. 26-30
Author(s):  
A. Ingemansson ◽  
Ju. Tchigirinsky ◽  
V. Zhukov
Keyword(s):  
Adaptive Control ◽  
Mathematical Models ◽  
Production Systems ◽  
Technological Preparation ◽  
Digital Production

The mathematical models for technological preparation of production and adaptive control of turning and milling in digital production systems are developed.

H2/O2 Cycles: Thermodynamic Potentialities and Limits

2003 ◽  
Author(s):  
M. Gambini ◽  
G. L. Guizzi ◽  
M. Vellini
Keyword(s):  
Production Systems ◽  
Renewable Energy Sources ◽  
H2 Production ◽  
Thermodynamic Cycles ◽  
A Value ◽  
Overall Performance ◽  
Definition Of ◽  
Working Parameters ◽  
O2 Production

In this paper, the thermodynamic potentialities and limits of the H2/O2 cycles are investigated. Starting from the conventional gas turbine and steam turbine technology, the paper qualitatively tackles problems related to a change of oxidizer and fuel: from these considerations, an internal combustion steam cycle (ICSC) is analyzed where steam, injected in the combustion chamber together with oxygen and hydrogen, is produced in a regenerative way and plays the important role of inert. A proper parametric analysis is then performed in order to evaluate the influence of the main working parameters on the overall performance of H2/O2 cycles. All the results are carried out neglecting the energy requirements for O2 and H2 production systems, but taking into account their work compression only. This choice permits great freedom in the definition of these thermodynamic cycles and allows general considerations because there is no need of any specification about H2 and/or O2 production systems and their integration with thermodynamic cycles. Therefore this paper can be framed in a context of oxygen and hydrogen centralized production (by nuclear or renewable energy sources for example) and in their distribution as pure gases in the utilization place. Adopting realistic assumptions, TIT of about 1350°C, the potentialities of H2/O2 cycles are very limited: the net efficiency attains a value of about 50%. Instead, adopting futurist assumptions, TIT = I700°C, a different H2/O2 cycle scheme can be proposed and more interesting performance is attained (a net efficiency value over 60%). The thermodynamic and technological aspects are completely addressed in the paper, underlining the great importance of the choice of the main working parameters.

Digitale Produktion und intelligente Steuerung/Digital Production and Intelligent Production Control – Integrating digital and real-world production for adaptive and automated control

2020 ◽  
Vol 110 (04) ◽  
pp. 255-260
Author(s):  
Marvin Carl May ◽  
Andreas Kuhnle ◽  
Gisela Lanza
Keyword(s):  
Production Control ◽  
Production Systems ◽  
Industrie 4.0 ◽  
World Production ◽  
Production Planning And Control ◽  
Automated Control ◽  
Planning And Control ◽  
Digital Production ◽  
Digitale Modelle ◽  
And Control

Im Rahmen der stufenweisen Umsetzung von Industrie 4.0 erreicht die Vernetzung und Digitalisierung die gesamte Produktion. Den physischen Produktionsprozess nicht nur cyber-physisch zu begleiten, sondern durch eine virtuelle, digitale Kopie zu erfassen und zu optimieren, stellt ein enormes Potenzial für die Produktionssystemplanung und -steuerung dar. Zudem erlauben digitale Modelle die Anwendung intelligenter Produktionssteuerungsverfahren und leisten damit einen Beitrag zur Verbreitung optimierender adaptiver Systeme.   In the wake of implementing Industrie 4.0 both integration and digitalization affect the entire production. Physical production systems offer enormous potential for production planning and control through virtual, digital copies and their optimization, well beyond purely cyber-physical production system extensions. Furthermore, digital models enable the application of intelligent production control and hence contribute to the dissemination of adaptively optimizing systems.

scholarly journals Material flow determination through agricultural machinery management

2010 ◽  
Vol 67 (4) ◽  
pp. 375-383 ◽  
Author(s):  
Thiago Libório Romanelli ◽  
Marcos Milan
Keyword(s):  
Fuel Consumption ◽  
Agricultural Production ◽  
Material Flow ◽  
Production Systems ◽  
Field Capacity ◽  
Effective Field ◽  
Silage Production ◽  
Definition Of ◽  
Agricultural Production Systems

The approach of material embodiment in agricultural production systems is important because it determines the convergence of inputs (indirectly, the natural resources) to the field. Additionally, material flow is the basis for both environmental (energy analysis, emergy synthesis, life-cycle analysis and carbon inventories) and economical analyses. Since different materials cannot compose a single index, generally these flows are not shown, making comparisons among approaches difficult. Another aspect that makes comparisons difficult is the definition of the boundary of the studied system. If these boundaries differ, results will also be different, hiding actual distinctions among systems. The present study aims to suggest an arrangement of existing models to determine material flow in agricultural production systems. The following steps were considered: i) the adoption of a diagram language to represent the analyzed system; ii) determination of the material flow for directly applied inputs; iii) determination of the material flow for indirectly applied inputs, which included: determination of the effective field capacity; fuel consumption; machinery depreciation; and labor. Data on fuel consumption were compared with the models presented. The best model applied was a fixed parameter based on engine power (0.163 L kW-1 h-1). The determination of the material flow for maize silage production presented similar results as those obtained in regional databases.

Luxury Business

2017 ◽  
Author(s):  
Pierre-Yves Donzé ◽  
Rika Fujioka
Keyword(s):  
Brand Management ◽  
Production Systems ◽  
Value Chains ◽  
Grey Zone ◽  
Luxury Brands ◽  
Services Research ◽  
Goods And Services ◽  
Definition Of ◽  
Clear Idea

The luxury business has been one of the fastest growing industries since the late 1990s. Despite numerous publications in management and business history, it is still difficult to have a clear idea of what “luxury” is, what the characteristics of this business are, and what the dynamics of the industry are. With no consensus on the definition of luxury among scholars and authors, the concept thus requires discussion. Luxury is commonly described as the high-end market segment, but the delimitation of the lower limit of this segment and its differentiation from common consumer goods are rather ambiguous. Authors use different terminology to describe products in this grey zone (such as “accessible luxury,” “new luxury,” and “prestige brands”). Despite the ambiguous definition of “luxury,” various companies have described their own businesses in this way, and consumers perceive them as producers of luxury goods and services. Research on luxury business has focused mostly on four topics: (1) the evolution of its industrial organization since the 1980s (the emergence of large conglomerates such as Moët Hennessy Louis Vuitton SE or LVMH, and the reorganization of small and medium-sized enterprises); (2) production systems (the introduction of European companies into global value chains, and the role of country of origin labels and counterfeiting); (3) brand management (using heritage and tradition to build luxury brands); and (4) access to consumers (customization versus standardization). Lastly, new marketing communication strategies have recently been adopted by companies, namely customer relations via social media and the creation of online communities.

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