Status of Vortex Interaction on Combat Aircraft - Physics Understood, Simulation Tool Demands, Quality & Cost

2022 ◽  
Author(s):  
Stephan M. Hitzel
2016 ◽  
Vol 7 (2) ◽  
pp. 1-24
Author(s):  
Neto Jose Alves da Silva ◽  
◽  
Giacaglia Giorgio Eugenio Oscare ◽  

2018 ◽  
Vol 9 (2) ◽  
pp. 234-257
Author(s):  
Anisa Putri

The aim to be achieved in this study is to analyze the quality and productivity costs of case studies at the Islamic University of 45 Bekasi. The research method used in this study is a qualitative descriptive method. The location of the study was conducted at the Islamic University of 45 Bekasi. The data used is secondary data from the financial statements of Islamic University of 45 Bekasi in the academic year 2013/2014. Methods of data collection using interviews and observation. The highest quality cost discussion results are prevention costs at the cost of seminars and training for lecturers as much as Rp. 450,561,400, -. The lowest quality cost is the assessment fee at the cost of lecturer accreditation of Rp. 1,925,000, -. The percentage of quality costs is 2.1% smaller than the fairness of the total quality costs of 2.5%. The realization of the output of new student admissions was obtained in the 2013/2014 school year as many as 1,339 people. Total students 6,364 people. The study period is more than 4 years and has not graduated as many as 992 people. Failure costs as much as 16% of total students. Realization of financial output was achieved in the amount of Rp. 39,384,232,556, - ​​Input Rp. 35,606,307,800, - used to obtain output. Company productivity is efficient because output is greater than input. Company productivity is effective because the company achieves financial goals by obtaining a surplus of Rp. 3,777,924,756, - The conclusion that can be drawn is that quality costs are able to obtain output in the form of income exceeding its input value so that productivity is efficient and effective and surplus.


Author(s):  
Shreyanshu Parhi ◽  
S. C. Srivastava

Optimized and efficient decision-making systems is the burning topic of research in modern manufacturing industry. The aforesaid statement is validated by the fact that the limitations of traditional decision-making system compresses the length and breadth of multi-objective decision-system application in FMS.  The bright area of FMS with more complexity in control and reduced simpler configuration plays a vital role in decision-making domain. The decision-making process consists of various activities such as collection of data from shop floor; appealing the decision-making activity; evaluation of alternatives and finally execution of best decisions. While studying and identifying a suitable decision-making approach the key critical factors such as decision automation levels, routing flexibility levels and control strategies are also considered. This paper investigates the cordial relation between the system ideality and process response time with various prospective of decision-making approaches responsible for shop-floor control of FMS. These cases are implemented to a real-time FMS problem and it is solved using ARENA simulation tool. ARENA is a simulation software that is used to calculate the industrial problems by creating a virtual shop floor environment. This proposed topology is being validated in real time solution of FMS problems with and without implementation of decision system in ARENA simulation tool. The real-time FMS problem is considered under the case of full routing flexibility. Finally, the comparative analysis of the results is done graphically and conclusion is drawn.


2014 ◽  
Vol 13 (8) ◽  
pp. 4723-4728
Author(s):  
Pratiksha Saxena ◽  
Smt. Anjali

In this paper, an integrated simulation optimization model for the assignment problems is developed. An effective algorithm is developed to evaluate and analyze the back-end stored simulation results. This paper proposes simulation tool SIMASI (Simulation of assignment models) to simulate assignment models. SIMASI is a tool which simulates and computes the results of different assignment models. This tool is programmed in DOT.NET and is based on analytical approach to guide optimization strategy. Objective of this paper is to provide a user friendly simulation tool which gives optimized assignment model results. Simulation is carried out by providing the required values of matrix for resource and destination requirements and result is stored in the database for further comparison and study. Result is obtained in terms of the performance measurements of classical models of assignment system. This simulation tool is interfaced with an optimization procedure based on classical models of assignment system. The simulation results are obtained and analyzed rigorously with the help of numerical examples. 


2019 ◽  
Vol 2019 (4) ◽  
pp. 7-22
Author(s):  
Georges Bridel ◽  
Zdobyslaw Goraj ◽  
Lukasz Kiszkowiak ◽  
Jean-Georges Brévot ◽  
Jean-Pierre Devaux ◽  
...  

Abstract Advanced jet training still relies on old concepts and solutions that are no longer efficient when considering the current and forthcoming changes in air combat. The cost of those old solutions to develop and maintain combat pilot skills are important, adding even more constraints to the training limitations. The requirement of having a trainer aircraft able to perform also light combat aircraft operational mission is adding unnecessary complexity and cost without any real operational advantages to air combat mission training. Thanks to emerging technologies, the JANUS project will study the feasibility of a brand-new concept of agile manoeuvrable training aircraft and an integrated training system, able to provide a live, virtual and constructive environment. The JANUS concept is based on a lightweight, low-cost, high energy aircraft associated to a ground based Integrated Training System providing simulated and emulated signals, simulated and real opponents, combined with real-time feedback on pilot’s physiological characteristics: traditionally embedded sensors are replaced with emulated signals, simulated opponents are proposed to the pilot, enabling out of sight engagement. JANUS is also providing new cost effective and more realistic solutions for “Red air aircraft” missions, organised in so-called “Aggressor Squadrons”.


AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 909-912
Author(s):  
Ronald J. Epstein ◽  
John A. Rule ◽  
Donald B. Bliss

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