New Methodology for Aircraft Performance Model Identification for Flight Management System Applications

2020 ◽  
Vol 17 (6) ◽  
pp. 294-310
Author(s):  
Georges Ghazi ◽  
Ruxandra Mihaela Botez ◽  
Simon Domanti
Keyword(s):  
Management System ◽  
Model Identification ◽  
Performance Model ◽  
Aircraft Performance

Integrated Propulsive and Thermal Management System Design for Optimal Hybrid Electric Aircraft Performance

2020 ◽  
Author(s):  
Philip C. Abolmoali ◽  
Adam B. Donovan ◽  
Soumya S. Patnaik ◽  
Patrick McCarthy ◽  
Dominic Dierker ◽  
...  
Keyword(s):  
System Design ◽  
Thermal Management ◽  
Management System ◽  
Thermal Management System ◽  
Electric Aircraft ◽  
Aircraft Performance ◽  
Hybrid Electric

scholarly journals Economic management of the unrecognized Donetsk Republic: legal framework, patterns, prospects

2019 ◽  
Vol 15 (2) ◽  
pp. 72-80
Author(s):  
E. V. Kotov
Keyword(s):  
Economic Development ◽  
Management System ◽  
Comparative Method ◽  
Model Identification ◽  
Legal Framework ◽  
Political Conflict ◽  
The State ◽  
Economic Management ◽  
Societal Needs ◽  
The Government

Introduction. The review of individual results of economic management of the state with a special status evidenced by the Donetsk People’s Republic is provided in this article. The newly formed state has to create its own economic management system as a result of the military-political conflict.The conditions of limited opportunities require, on the one hand, taking an account of available opportunities and external constraints for the purpose of providing for current societal needs, and on the other hand – a strategy for a long term economic development, which should contain the development of its own economic model, identification and prediction by the government of future threats and risks, which will provide a correction impact on the socialeconomic system. The more the republic’s economic management system borrows old tools and mechanisms, restores technological chains that have proved their economic futility in the pre-conflict period, the more urgent the solution of this dual problem is. The article provides a brief analysis of the prerequisites for the formation of a management system for the republic’s economy and the consequences of the implementation of its principles.Materials and methods. The methodological basis of this research includes the following general scientific and special methods of cognition of organizational and economic phenomena and processes in the field of public economic administration: comparative method; formal-logical method; statistical method, grouping method, method of analysis and synthesis, substitution method. Results of the research. As a result of the analysis, it was revealed that the economic management system of a state with a special status requires increased attention, resources and time. Currently, it has passed only the first stages of its formation, has not completed its first stage of organization - the stage of formation. The system of managing the state’s economy with a special status is still in the process of searching for effective mechanisms and instruments of government and determining priority areas for economic development. This explains both attempts to restore outdated technological chains, despite the fact that they demonstrated a devaluation of their economic potential under more favorable conditions, and continuing uncertainty with the choice of an economic development model, when the old mechanisms no longer work and the new ones have not yet been developed.Discussion and conclusions. The drawbacks of the formed system of managing the state economy with a special status, caused by the use of outdated organizational and economic-production principles and tools are shown. The urgency of the development of its own model of economic development in conditions of limited opportunities is grounded.

scholarly journals Comparison of Pavement Performance Models for Urban Road Management System

2020 ◽  
Vol 15 (3) ◽  
pp. 111-129
Author(s):  
Igoris Kravcovas ◽  
Audrius Vaitkus ◽  
Rita Kleizienė
Keyword(s):  
Bearing Capacity ◽  
Management System ◽  
Condition Index ◽  
Performance Model ◽  
Pavement Management ◽  
Pavement Performance ◽  
Performance Models ◽  
Climate Conditions ◽  
Pavement Condition ◽  
Pavement Performance Model

The key factors for effective pavement management system (PMS) are timely preservation and rehabilitation activities, which provide benefit in terms of drivers’ safety, comfort, budget and impact on the environment. In order to reasonably plan the preservation and rehabilitation activities, the pavement performance models are used. The pavement performance models are usually based on damage and distress observations of rural roads, and can be applied to forecast the performance of urban roads. However, the adjustment of the parameters related to traffic volume, speed and load, climate conditions, and maintenance has to be made before adding them to PMS for urban roads. The main objective of this study is to identify the performance indicators and to suggest pavement condition establishment methodology of urban roads in Vilnius. To achieve the objective, the distresses (rut depth and cracks), bearing capacity, and international roughness index (IRI) were measured for fifteen urban roads in service within a two-year period. The distresses, rut depth and IRI were collected with the Road Surface Tester (RST) and bearing capacity of pavement structures were measured with a Falling Weight Deflectometer (FWD). The measured distresses were compared to the threshold values identified in the research. According to the measured data, the combined pavement condition indices using two methodologies were determined, as well as a global condition index for each road. The analysed roads were prioritized for maintenance and rehabilitation in respect to these criteria. Based on the research findings, the recommendations for further pavement condition monitoring and pavement performance model implementation to PMS were highlighted.

Design and Validation of a Detailed Aircraft Performance Model for Trajectory Optimisation

2012 ◽  
Author(s):  
William Camilleri ◽  
Kenneth Chircop ◽  
David Zammit-Mangion ◽  
Roberto Sabatini ◽  
Vishal Sethi
Keyword(s):  
Performance Model ◽  
Aircraft Performance ◽  
Trajectory Optimisation

WRAP: An open-source kinematic aircraft performance model

2019 ◽  
Vol 98 ◽  
pp. 118-138 ◽  
Author(s):  
Junzi Sun ◽  
Joost Ellerbroek ◽  
Jacco M. Hoekstra
Keyword(s):  
Open Source ◽  
Performance Model ◽  
Aircraft Performance

scholarly journals OpenAP: An Open-Source Aircraft Performance Model for Air Transportation Studies and Simulations

Aerospace ◽  
2020 ◽  
Vol 7 (8) ◽  
pp. 104
Author(s):  
Junzi Sun ◽  
Jacco M. Hoekstra ◽  
Joost Ellerbroek
Keyword(s):  
Open Source ◽  
Air Transportation ◽  
Source Model ◽  
Air Traffic ◽  
Performance Model ◽  
Aircraft Performance ◽  
Main Components ◽  
Transportation Research ◽  
Main Component ◽  
Transportation Studies

Air traffic simulations serve as common practice to evaluate different concepts and methods for air transportation studies. The aircraft performance model is a key element that supports these simulation-based studies. It is also an important component for simulation-independent studies, such as air traffic optimization and prediction studies. Commonly, contemporary studies have to rely on proprietary aircraft performance models that restrict the redistribution of the data and code. To promote openness and research comparability, an alternative open performance model would be beneficial for the air transportation research community. In this paper, we introduce an open aircraft performance model (OpenAP). It is an open-source model that is based on a number of our previous studies, which were focused on different components of the aircraft performance. The unique characteristic of OpenAP is that it was built upon open aircraft surveillance data and open literature models. The model is composed of four main components, including aircraft and engine properties, kinematic performances, dynamic performances, and utility libraries. Alongside the performance model, we are publishing an open-source toolkit to facilitate the use of this model. The main objective of this paper is to describe each main component, their connections, and how they can be used for simulation and research in practice. Finally, we analyzed the performance of OpenAP by comparing it with an existing performance model and sample flight data.

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