scholarly journals Adaptive aerodynamic part feeding enabled by genetic algorithm

2021 ◽  
Author(s):  
Sebastian Blankemeyer ◽  
Torge Kolditz ◽  
Jan Busch ◽  
Melissa Seitz ◽  
Peter Nyhuis ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
Feeding Rate ◽  
Feeding System ◽  
Ambient Conditions ◽  
New Approach ◽  
Automated Production ◽  
Orientation Process ◽  
Monitoring Algorithm ◽  
Part Feeding ◽  
Feeding Systems

AbstractAerodynamic feeding systems represent one possibility to meet the challenges of part feeding for automated production in terms of feeding performance and flexibility. The aerodynamic feeding system investigated in this article is already able to adapt itself to different workpieces using a genetic algorithm. However, due to the operating principle, the system is susceptible to changes in environmental conditions such as air pressure and pollution (e.g. dust). To minimise the effect of ambient influences, the system must be enabled to detect changes in the feeding rate and react autonomously by adapting the system’s adjustment parameters. In this work, based on pre-identified factors interfering with the aerodynamic orientation process, a new approach is developed to react to changes of the ambient conditions during operation. The presented approach makes us of an alternating sequence of monitoring and corrective algorithms. The monitoring algorithm measures the ratio of correctly oriented parts to the total number of fed parts of the process and triggers the corrective algorithm if necessary. Simulated and experimental results both show that an increased feeding rate can be achieved in varying conditions. Furthermore, it is shown that integrating both known process and parameter information can reduce the time for re-parametrisation of the feeding system.

A genetic algorithm for a self-learning parameterization of an aerodynamic part feeding system for high-speed assembly

CIRP Annals ◽  
2015 ◽  
Vol 64 (1) ◽  
pp. 5-8 ◽  
Author(s):  
Jan Busch ◽  
Melissa Quirico ◽  
Lukas Richter ◽  
Matthias Schmidt ◽  
Annika Raatz ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
High Speed ◽  
Feeding System ◽  
Self Learning ◽  
Part Feeding

scholarly journals A performance model for mobile robot-based part feeding systems to supermarkets

2021 ◽  
Author(s):  
Emilio Moretti ◽  
Elena Tappia ◽  
Martina Mauri ◽  
Marco Melacini
Keyword(s):  
Negative Impact ◽  
Positive Impact ◽  
Waiting Times ◽  
Performance Model ◽  
Innovative Technology ◽  
Shop Floor ◽  
Storage And Retrieval ◽  
Trade Offs ◽  
Part Feeding ◽  
Feeding Systems

AbstractIn a context where companies are striving to produce highly customised goods in small batches and within short lead times, increasing attention is being put on the design and management of part feeding systems. This research is the first to model automated part feeding to supermarkets in a factory environment, considering an innovative technology called vertical robotic storage and retrieval systems. This technology allows automating the storage, picking, and internal transportation activities in an integrated process, thanks to rack-climbing robots roaming in both the shop floor and the storage racks. We develop an analytical model based on the queuing network approach to analyse the system performance, and we use it to perform numerical experiments and to evaluate the design trade-offs with reference to a real case in the automotive industry. Results show that an increase in the number of robots leads to better performance since the positive impact on the response time is stronger than the negative impact on the waiting times of robots at the supermarkets due to congestion. Furthermore, a configuration with multiple small supermarkets improves the efficiency of the replenishment process, compared to a setting with few big supermarkets.

scholarly journals Does Feeding System Influence Parasitism in Black Bengal Goats in Bangladesh?

2013 ◽  
Vol 22 (1-2) ◽  
pp. 85-95 ◽  
Author(s):  
AKMA Rabbi ◽  
A Islam ◽  
M Anisuzzaman ◽  
S Majumder ◽  
MH Rahman
Keyword(s):  
Fecal Sample ◽  
Helminth Infection ◽  
Boophilus Microplus ◽  
Production Performance ◽  
Feeding System ◽  
Extensive System ◽  
Parasitic Burden ◽  
Demodex Sp ◽  
Feeding Systems ◽  
Intensive System

To study the parasitism in goats in relation to different feeding systems, 1110 goats from different areas of Jaypurhat, Tangail, Netrakona and Mymensingh districts were examined. By fecal sample examination, 76.5% goats were found to be infected with one or more species of endoparasites. In this study, 9 types of helminths’ ova were identified such as Fasciola gigantica (14.8%), Paramphistomum sp. (28.5%), Schistosoma indicum (3.2%), strongyles (35%), Strongyloides sp. (17.4%), Toxocara spp. (1.5%), Trichuris sp. (4.6%), Capillaria sp. (1.2%) and Moniezia sp. (3.7%). Two types of protozoa were also detected, namely, Eimeria sp. (7.1%) and Balantidium coli (5.5%). Along with these, five species of ectoparasites were found: two species were lice such as Damilinia caprae (13.9 %) and Linognathus vitulli (4.2%), and two species were ticks namely, Haemophysalis bispinosa (21.2%), Rhipicaphalus (Boophilus) microplus (3.6%) and one species was mite, namely, Demodex sp. (2.9%). Mean parasitic burden of Paramphistomum sp. (259.81 ± 3.35) was the highest followed by Eimeria sp. (224.1 ± 16.9) and Moniezia sp. (204.9 ± 19.7). Prevalence of helminths and protozoa was significantly (P<0.01) highest in extensive system (86.1%) followed by semi-intensive (76.3%) and intensive system (57.5%). Ova of Schistosoma indicum was absent in the fecal sample of goats of intensive system. Goats of extensive and semi-intensive systems were 4.6 and 2.4 times more susceptible to helminth infection than those of intensive system. Ectoparasitic infestation was the highest in semi-intensive system (59.7%) followed by extensive system (33.5%) and intensive system (8.2%). In conclusion, the present study suggests that feeding system has a great impact on the prevalence of parasites in Black Bengal goats. Further study can be carried out to determine the effect of parasitism in the production performance of Black Bengal goats.DOI: http://dx.doi.org/10.3329/pa.v22i1-2.16470 Progress. Agric. 22(1 & 2): 85-95, 2011

scholarly journals Some Studies on Forming Optimization with Genetic Algorithm

2012 ◽  
Vol 2 (2) ◽  
pp. 105-112
Author(s):  
Ganesh Marotrao KAKANDIKAR ◽  
Vilas M. NANDEDKAR
Keyword(s):  
Genetic Algorithm ◽  
Process Parameters ◽  
Wide Spectrum ◽  
Simulation Software ◽  
Flow Conditions ◽  
Element Analysis ◽  
Blank Holder ◽  
New Approach ◽  
Finite Element Analysis Simulation ◽  
Selection Of

Forming is a compression-tension process involving wide spectrum of operations and flow conditions. The result of the process depends on the large number of parameters and their interdependence. The selection of various parameters is still based on trial and error methods. In this paper the authors presents a new approach to optimize the geometry parameters of circular components, process parameters such as blank holder pressure and coefficient of friction etc. The optimization problem has been formulated with the objective of optimizing the maximum forming load required in Forming. Genetic algorithm is used for the optimization purpose to minimize the drawing load and to optimize the process parameters. A finite element analysis simulation software Fast Form Advanced is used for the validations of the results after optimization.

Ways to develop full automation of production

2021 ◽  
pp. 24-34
Author(s):  
G. E. Ganina ◽  
Yu. A. Ostrovskiy ◽  
A. P. Yakovleva
Keyword(s):  
Industrial Revolution ◽  
Driving Forces ◽  
Social Issues ◽  
New Approach ◽  
Automated Production ◽  
Routine Work ◽  
Effective Form ◽  
Full Automation ◽  
Labor Resources ◽  
Universal Law

A new approach to the problem of full automation of production is considered. It is shown that along with technical issues, one of the main places among the issues of full automation of production is occupied by social issues, since full automation radically changes the structure of labor resources. The novel division of labor in the process of life activity led to the formation of new organizational solutions that also affected the automation environment. This is primarily due to the fact that along with individuals inventing and implementing automatic devices, a certain number of workers, who were freed from routine work by automats and had to be organized in a new way in the work of the team, appeared. The subsequent era of the industrial revolution is associated not only with the development of new types of energy, but also with the formation of new organizational solutions in production. It is reasonable to imagine the development of fully automated production as a process of transition to a state in which individuals who consume products simultaneously change its structure. The driving forces behind the development of fully automated production are individuals who have been freed from routine work as a result of automation and have been given the opportunity to realize their creative abilities. Taking into account the effect of the «universal law of the elevation of needs», it is necessary to consider the appropriate and most effective form of the structure of fully automated production as a permanently changing matrix containing a changing set of individual customers and a changing set of automation tools. Familiarity with the new approach to the problem of full automation will help enterprise designers to better understand the composition of tasks for the reconstruction of production.

conexing/conexing: Simulation total – Internet as Infochannel

2015 ◽  
Vol 105 (09) ◽  
pp. 651-656
Author(s):  
A. König ◽  
T. Benkner ◽  
J.-P. Schulz
Keyword(s):  
Planning Process ◽  
Production Systems ◽  
System Component ◽  
File Format ◽  
Web Portal ◽  
New Approach ◽  
Automated Production ◽  
Virtual Commissioning ◽  
System Components ◽  
Engineering Information

Der Fachartikel beschreibt ein neues Konzept zur interdisziplinären, gewerkeübergreifenden Zusammenarbeit von Unternehmen im Planungsprozess von automatisierten Produktionssystemen. Der Ansatz „conexing“ definiert ein planungsübergreifendes Dateiformat auf Basis des AutomationML-Standards für Anlagenkomponenten sowie eine Austauschschnittstelle mittels eines Webportals. Die hier vorgestellte Methodik erlaubt den Austausch von Komponenten inklusive ihres logischen Verhaltens für die virtuelle Inbetriebnahme zwischen unterschiedlichen Engineering-Werkzeugen. &nbsp; This article describes a new approach to interdisciplinary – cross-trade business cooperation in the planning process of automated production systems. The conexing approach defines so called SmartComponent, as a file format for system components based on the AutomationML standards for the exchange of plant engineering information. These SmartComponents include detailed system component information as well as their logical behavior. The presented approach additionally allows an exchange of SmartComponents between different engineering tools for virtual commissioning via a web portal.

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