TY - BOOK AU - Ewins,D.J. TI - Modal testing: theory, practice, and application T2 - Mechanical engineering research studies. Engineering dynamics series SN - 9780863802188 AV - TA355 .E97 2000 U1 - 624.171 EW.M 2000 23 PY - 2000/// CY - Baldock, Hertfordshire, England PB - Research Studies Press KW - Vibration KW - Mathematical models KW - Structural dynamics N1 - Includes bibliographical references (pages 545-550) and index; Applications of Modal Testing -- Philosophy of Modal Testing -- Summary of Theory -- Summary of Measurement Methods -- Summary of Modal Analysis Processes -- Review of Test Procedures, and Levels -- Terminology and Notation -- Theoretical Basis -- Single-Degree-of-Freedom (SDOF) System Theory -- Presentation and Properties of FRF Data for SDOF System -- Undamped Multi-Degree-of-Freedom (MDOF) Systems -- MDOF Systems with Proportional Damping -- MDOF Systems with Structural (Hysteretic) Damping--General Case -- MDOF Systems with Viscous Damping--General Case -- Modal Analysis of Rotating Structures -- Complex Modes -- Characteristics and Presentation of MDOF FRF Data -- Non-sinusoidal Vibration and FRF Properties -- Complete and Incomplete Models -- Sensitivity of Models -- Analysis of Weakly Non-linear Structures -- Response Function Measurement Techniques -- Introduction and Test Planning -- Basic Measurement System -- Structure Preparation -- Excitation of the Structure -- Transducers and Amplifiers -- Analysers -- Digital Signal Processing -- Use of Different Excitation Signals -- Calibration -- Mass Cancellation -- Rotational FRF Measurement -- Measurements on Non-Linear Structures -- Multi-point Excitation Methods -- Measuring FRFs and ODSs using the Scanning LDV -- Modal Parameter Extraction Methods -- Preliminary Checks of FRF Data -- SDOF Modal Analysis Methods -- MDOF Modal Analysis in the Frequency Domain (SISO) -- Global Modal Analysis Methods in the Frequency Domain -- MDOF Modal Analysis in the Time Domain N2 - Modal testing is practised in all engineering disciplines where vibration and other dynamic phenomena affect the performance of structures and machines. Here the steps involved in interpreting and applying the results from modal tests are described ER -