By Courtland D. Perkins, Robert E. Hage
First written in 1949, it is a vintage textual content in aeronautical engineering. It covers plane functionality in reciprocating engine craft, propeller functionality, in addition to airplane balance and regulate. this is often a great publication for the pro and the intense beginner plane maker. it's written in a simple and straightforward to appreciate demeanour. To get the main out of this ebook, readers must have an figuring out of differential calculus.
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Additional info for Airplane Performance, Stability and Control
The parametric modeling stage generally involves a more intensive effort, with added focus on the physical understanding of the system being modeled to ensure that the appropriate model structure is adopted. Parametric modeling in the frequency domain can take two forms: transfer-function and state-space models. The simplest form uses transfer functions, which are the pole-zero representations of individual SISO frequency-response pairs. , roll-rate response to aileron). These transfer-function models provide the key dynamic modes and control sensitivities.
Initial data Consist of frequency responses (derived from time-history data) Consist of time-history data How models are identified By matching predicted frequency responses against measured frequency responses By matching predicted time histories against measured time histories Starting the method Frequency-domain methods start by calculating frequency responses, getting some preliminary information about the model structure, and then (if necessary) identifying a more detailed and accurate parametric model structure.
The main concepts of system identification and a historical overview are presented in Chapter 1. A schematic diagram (road map) of the frequency-response method and typical flight-test results for aircraft and rotorcraft are presented in Chapter 2. The succeeding chapters trace the steps of the roadmap from flighttest planning and instrumentation to data checking, appropriate choice of model structure, and then the central topics of model identification and verification. Each chapter presents the theory, engineering methods, practical guidelines for application, examples, and flight-test results for the particular step in the road map.