آنالیز مودال و تست مودال | دکتر سعید ضیایی راد
استاد گروه مهندسی مکانیک در ارتعاشات
آنالیز مودال و تست مودال
Route to vibration analysis
Single Degree-of-Freedom (SDOF)
Viscously Damped
Hysterically (Structurally) Damped
Alternative Forms of FRF
Relation between Different forms of FRFs
Graphical Display of FRFs
Frequency Response of Mass and stiffness Elements
Orthogonality Properties of MDOF
Mass-normalisation
Forced Response of MDOF
Proportional Hysteretic damping
MDOF Systems with hysteretic damping- general case
Proportional Structural Damping
Non-Proportional Structural Damping
FRF Characteristics (Hysteretic Damping)
MDOF Systems with viscous damping- general case
FRF Characteristics - Viscous Damping
Display of Complex Mode
Measurement of Modal Complexity
Origin of Complex Modes
Receptance and Impedance FRF Parameters
FRF Plot in MDOF System
Point and Transfer FRFs
Example- FRFs of 6DOF System
Display of FRF Data For Damped Systems
Real and Imaginary plots
Basic Modal Theory – Summary
Incomplete Modal Model
Modal to Response
Modal to Spatial
Incomplete Response Model
Incomplete Spatial
Improved Reduction System (IRS)
System Equivalent Reduction Expansion Process (SEREP).
Calculation of the Rank of a Matrix
Calculation of Generalised Inverses
ADDOFD, ADDOFV and ADDOFA
Optimum Suspension Positions
Optimum Driving Positions
Non-Optimum Driving Point (NODP) Technique
Effective Independence (EI) method
Types of Vibration Measurements
Measured Data Consistency, including reciprocity
FRF Measurement Systems
Important Aspects of Measurement Methods
Support of test structure
Attachment of exciter
Push rod or stingers
Excitation signal used
Mass Calibration and Mass Cancelation
Type of Modal Analysis
Preliminary Checks of FRF Data
Basic Skeleton Theory
Mode Indicator Functions (MIFs)
SDOF Curve-fit Method
Peak Amplitude Method
Circle-Fit Method
Inverse or Line-fit Method
Regenerated FRFs
Modal Analysis in Frequency Domain
MDOF Curve-fit Method
Modal Analysis Using Rational Fractions
MDOF Curve-fits - Light Damping
Global frequency Methods
Global Rational Fraction Polynomial Method (GRFP)
Global SVD Method
Global frequency Methods in the Frequency domain
Strategy for Model Validation
Theory/Experiment Comparison
MAC Correlation Between Two Sets Of Modes
Normalised Version of the Mac
Error Location - The COMAC
Correlation of Other Parameters- Frequency Response Functions
Test/Analysis Methods to Identify Non-Linearities Parameters
LDVs as Transducer
Application of MAC in Frequency Domain
MDOF Systems With Damping – General Case
Complete and Incomplete Models
Other Dimensions in Modal Analysis Testing
تلفن : 03113913110
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