A Two-Phase Investigation of Longitudinal Flying Qualities for Fighters. Phase I: The Effect of Evaluation Technique and Flight Phase on Flying Qualities Assessment. Phase II: An Example of Criteria Development, Control System Design and Flight Test Evaluation of Four Control Systems Using Eta-z, Alpha, and q Feedback.

1974 ◽  
Author(s):  
Edward M. Boothe ◽  
Robert T. N. Chen ◽  
Charles R. Chalk
Keyword(s):  
Control System ◽  
Control Systems ◽  
Flight Test ◽  
Control System Design ◽  
Test Evaluation ◽  
Evaluation Technique ◽  
Two Phase ◽  
Flight Phase ◽  
Development Control ◽  
Flying Qualities

Take-off control and characteristics of FanWing

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Lin Meng ◽  
Yang Gao ◽  
Yangyang Liu ◽  
Shengfang Lu
Keyword(s):  
Control System ◽  
Control Systems ◽  
Design Methodology ◽  
Control System Design ◽  
Control Methods ◽  
Force Analysis ◽  
Close Attention ◽  
Content Type ◽  
Vehicle Load ◽  
Practical Implications

Purpose As a short take-off and landing aircraft, FanWing has the capability of being driven under power a short distance from a parking space to the take-off area. The purpose of this paper is to design the take-off control system of FanWing and study the factors that influence the short take-off performance under control. Design/methodology/approach The force analysis of FanWing is studied in the take-off phase. Two take-off control methods are researched, and several factors that influence the short take-off performance are studied under control. Findings The elevator and fan wing control systems are designed. Although the vehicle load increases under the fan wing control, the fan wing control is not a recommended practice in the take-off phase for its sensitivity to the pitch angle command. The additional pitch-down moment has a significant influence on the control system and the short take-off performance that the barycenter variation of FanWing should be considered carefully. Practical implications The presented efforts provide a reference for the location of the center of gravity in designing FanWing. The traditional elevator control is more recommended than the fan wing control in the take-off phase. Originality/value This paper offers a valuable reference on the control system design of FanWing. It also proves that there is an additional pith-down moment that needs to be paid close attention to. Four factors that influence the short take-off performance are compared under control.

Control Systems for the Next Century’s Fighter Engines

1992 ◽  
Vol 114 (4) ◽  
pp. 749-754 ◽  
Author(s):  
C. A. Skira ◽  
M. Agnello
Keyword(s):  
Control System ◽  
System Design ◽  
Control Systems ◽  
Engine Performance ◽  
Control System Design ◽  
Development Phase ◽  
Hardware Configuration ◽  
Propulsion Control ◽  
Technology Capability ◽  
Advanced Development

The paper describes a conceptual control system design based on advanced technologies currently in the exploratory development phase, and, in some cases, emerging into the advanced development phase. It explores future propulsion control systems that focus on improvements in three areas: (1) significantly reducing control system weight; (2) enhancing engine performance (thrust, sfc, etc.); and (3) improving control system reliability and tolerance to high-threat environments (temperature, vibration, EMI, EMP, etc.). The factors that will influence the design and hardware configuration of future propulsion control systems are described. Design goals for future systems, based on the DOD/NASA IHPTET Initiative, and projections of emerging technology capability (and availability) form the basis for future propulsion control system design requirements and for estimating future hardware configurations.

Flight-Test Evaluation of an Adaptive Controller for Flying Qualities Specification and Protection

2015 ◽  
Vol 38 (12) ◽  
pp. 2241-2256 ◽  
Author(s):  
Nathan D. Richards ◽  
Richard J. Adams ◽  
David H. Klyde ◽  
Bruce Cogan
Keyword(s):  
Flight Test ◽  
Adaptive Controller ◽  
Test Evaluation ◽  
Flying Qualities

Design Analysis of Electrical Control System for the Gear Teaching Simulator

2014 ◽  
Vol 602-605 ◽  
pp. 1481-1484
Author(s):  
Miao Shang ◽  
Guo Min Lin ◽  
Wen Guang Zhang ◽  
Fei Zhou
Keyword(s):  
Control System ◽  
System Design ◽  
Control Systems ◽  
Performance Indicators ◽  
Design Analysis ◽  
Control System Design ◽  
Electrical Control ◽  
Operating Variables ◽  
Technical Performance ◽  
Electric Control

Through the analysis of technical performance indicators of the gear teaching simulator, main technical indexes and design goals of electric control system are proposed; Scheme of electrical control system is analyzed; Control systems, controlled variables, operating variables and detection devices are selected. For the realization of electric control system design of the gear teaching simulator, improving the performance of the gear teaching simulator, it has an important guiding significance.

Management Control System Design and Employees' Autonomous Motivation

2019 ◽  
Vol 32 (3) ◽  
pp. 71-91
Author(s):  
Clara Xiaoling Chen ◽  
Jeremy B. Lill ◽  
Thomas W. Vance
Keyword(s):  
Control System ◽  
System Design ◽  
Control Systems ◽  
Online Survey ◽  
Positive Association ◽  
Autonomous Motivation ◽  
Management Control ◽  
Data Availability ◽  
Control System Design ◽  
Management Control System

ABSTRACT Using an online survey of 468 U.S. employees from diverse industries and professions, we provide empirical evidence that management control system design choices can affect autonomous motivation in employees. Drawing on self-determination theory and the levers of control framework, we predict and find that employee autonomous motivation is positively associated with the use of beliefs control systems and interactive control systems and negatively associated with the use of diagnostic control systems. Moreover, we find that the joint use of diagnostic and interactive controls is positively associated with autonomous motivation. We also find a positive association between employees' autonomous motivation and individual self-reported effort, job performance, and creativity. Additional analyses examine the sources of motivation behind these results, focusing on identified motivation. The theory and results of our study provide a potential explanation for the recent trend in practice of organizations increasingly emphasizing their values and higher purposes. Data Availability: Data are available upon request.

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