![]() ![]() Thompson, in Encyclopedia of Materials: Science and Technology, 2001 1 Resonance Vibration Techniques 1.1 History and Basic Principles Throughout, harmonic inputs are assumed unless otherwise stated.ĭ.O. These are presented in the next section, followed by recommendations for specific testing techniques that should be employed to guarantee that all types of responses have been found. Before embarking on this, it is important to appreciate some of the different responses that can arise on account of nonlinearities. The purpose of this article is to present guidelines for testing systems that may be nonlinear and thus behave in unpredictable ways, i.e., unlike a linear system. Nevertheless, it is still important to ascertain what operating conditions may lead to an unacceptable type of response. ![]() However, when the system is nonlinear the general identification procedure is much more complicated and detailed models are often impossible to obtain. This is discussed elsewhere in the encyclopedia. If the object is linear, a great deal of information can be obtained from such tests. Vibration testing of a system is usually undertaken for the purpose of parameter or system identification. Haddow, in Encyclopedia of Vibration, 2001 Introduction ![]()
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