Characteristics of Environmental Test Equipment at the Langley Research Center PDF Download

Author: Sherman A. Clevenson
Publisher:
ISBN:
Category : Aeronautical laboratories
Languages : en
Pages : 52

View

Book Description

Author: Zhengyu Song
Publisher: Springer
ISBN: 9811087121
Category : Technology & Engineering
Languages : en
Pages : 255

View

Book Description
This book presents technologies and solutions related to the test and launch control of rockets and other vehicles, and offers the first comprehensive and systematic introduction to the contributions of the Chinese Long March (Chang Zheng in Chinese, or abbreviated as CZ) rockets in this field. Moreover, it discusses the role of this technology in responsive, reliable, and economical access to space, which is essential for the competitiveness of rockets. The need for rapid development of the aerospace industry for both governmental and commercial projects is addressed. This book is a valuable reference resource for practitioners, and many examples and resources are included, not only from Chinese rockets but also from many other vehicles. It covers guidelines, technologies, and solutions on testing and launch control before rocket takeoff, covering equipment-level testing, system-level testing, simulation tests, etc.

Author: Rene David
Publisher: CRC Press
ISBN: 1000110168
Category : Technology & Engineering
Languages : en
Pages : 496

View

Book Description
"Introduces a theory of random testing in digital circuits for the first time and offers practical guidance for the implementation of random pattern generators, signature analyzers design for random testability, and testing results. Contains several new and unpublished results. "

Author: Grumman Aerospace Corporation
Publisher:
ISBN:
Category :
Languages : en
Pages : 118

View

Book Description

Author: W Eric Wong
Publisher: World Scientific
ISBN: 9814460737
Category : Computers
Languages : en
Pages : 308

View

Book Description
This book focuses on the topic of improving software quality using adaptive control approaches. As software systems grow in complexity, some of the central challenges include their ability to self-manage and adapt at run time, responding to changing user needs and environments, faults, and vulnerabilities. Control theory approaches presented in the book provide some of the answers to these challenges.The book weaves together diverse research topics (such as requirements engineering, software development processes, pervasive and autonomic computing, service-oriented architectures, on-line adaptation of software behavior, testing and QoS control) into a coherent whole.Written by world-renowned experts, this book is truly a noteworthy and authoritative reference for students, researchers and practitioners to better understand how the adaptive control approach can be applied to improve the quality of software systems. Book chapters also outline future theoretical and experimental challenges for researchers in this area.

Author: Edward B. Eichelberger
Publisher:
ISBN:
Category : Computers
Languages : en
Pages : 218

View

Book Description

Author: Dharmaraja Selvamuthu
Publisher: Springer Nature
ISBN: 9819993636
Category :
Languages : en
Pages : 623

View

Book Description

Author: John A. Molusis
Publisher:
ISBN:
Category : Rotors (Helicopters)
Languages : en
Pages : 56

View

Book Description
An on line technique is presented for the identification of rotor blade modal damping and frequency from rotorcraft random response test data. The identification technique is based upon a recursive maximum likelihood (RML) algorithm, which is demonstrated to have excellent convergence characteristics in the presence of random measurement noise and random excitation. The RML technique requires virtually no user interaction, provides accurate confidence bands on the parameter estimates, and can be used for continuous monitoring of modal damping during wind tunnel or flight testing. Results are presented from simulation random response data which quantify the identified parameter convergence behavior for various levels of random excitation. The data length required for acceptable parameter accuracy is shown to depend upon the amplitude of random response and the modal damping level. Random response amplitudes of 1.25 degrees to .05 degrees are investigated. The RML technique is applied to hingeless rotor test data. The inplane lag regressing mode is identified at different rotor speeds. The identification from the test data is compared with the simulation results and with other available estimates of frequency and damping.

Author:
Publisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 880

View

Book Description

Author: United States. Dept. of Defense
Publisher:
ISBN:
Category : Specifications
Languages : en
Pages : 952

View

Book Description