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Technical Papers

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Damage Detection

  • Continuous Monitoring of Modal Parameters to Quantify Structural Damage
  • Correlating Minute Structural Faults with Changes in Modal Parameters
  • Detection and Location of Structural Cracks using FRF Measurements
  • Determination of Modal Sensitivity Functions for Location of Structural Faults
  • Fault Detection in Structures from Changes in Their Modal Parameters
  • Modes Indicate Cracks in Turbine Blades

Modal Analysis

  • Derivation of Mass, Stiffness and Damping Parameters From Experimental Modal Data
  • Determining the Accuracy of Modal Parameter Estimation Methods
  • Experimental Modal Analysis
  • Identification of the Modal Properties of an Elastic Structure from Measured Transfer Function Data
  • Locating Optimal References for Modal Testing
  • Modal Analysis for the Connoisseur
  • Modal Mass, Stiffness and Damping
  • Modal Testing using Multiple References
  • Virtual Experimental Modal Analysis (VEMA)
  • Viscous versus Structural Damping in Modal Analysis
  • Using Impulse Response Functions to Evaluate Baseball Bats
  • Simulating Base-Shake Environmental Testing

Modal Analysis - Curve Fitting Methods

  • Complex Mode Indication Function and its Applications to Spatial Domain Parameter Estimation
  • Global Curve Fitting of Frequency Response Measurements using the Rational Fraction Polynomial Method
  • Global Frequency and Damping Estimates from Frequency Response Measurements
  • Modal Testing using Multiple References
  • The Multivariate Mode Indicator Function in Modal Analysis
  • Parameter Estimation From Frequency Response Measurements using Rational Fraction Polynomials
  • Parameter Estimation From Frequency Response Measurements using Rational Fraction Polynomials (20 Years of Progress)
  • Post-Processing Ambient and Forced Response Bridge Data to Obtain Modal Parameters

Modal Analysis - Operational Modal

  • Modal Parameter Estimation from Ambient Response Data
  • Modal Parameter Estimation from Operating Data
  • Post-Processing Ambient and Forced Response Bridge Data to Obtain Modal Parameters
  • Scaling Mode Shapes Obtained from Operating Data
  • Measurements Required for Displaying Operating Deflection Shapes
  • De-Convolution Window for Operating Modal Analysis

Operating Deflection Shapes

  • Is it a Mode Shape, or an Operating Deflection Shape?
  • Introduction to Operating Deflection Shapes
  • Measuring Operating Deflection Shapes under Non-Stationary Conditions
  • Obtaining Stresses and Strains from ODS Data
  • On Pressure Mode Shapes Arising from Rotor/Stator Interactions
  • Operating Deflection Shapes from Time Versus Frequency Domain Measurements

Mechanicom Machinery Maintenance

  • Using Operating Deflection Shapes to Detect Faults in Rotating Equipment
  • Using ODS's to Detect Shaft Misalignment in Rotating Equipment
  • Using Operating Deflection Shapes to Detect Unbalance in Rotating Equipment
  • Mechanicom Schematic

Signal Processing

  • Effective Measurements for Structural Dynamics Testing (Parts 1 and 2)
  • Fundamentals of the Discrete Fourier Transform
  • Measurement and Analysis of the Dynamics of Mechanical Structures
  • Structural Dynamics Measurements

Structural Modifications

  • Comparison of Analytical and Experimental Rib Stiffener Modifications to a Structure
  • Simultaneous Structural Dynamics Modification (S2DM)
  • Structural Modifications Using Higher Order Elements
  • Using SDM to Train Neural Networks for Solving Modal Sensitivity Problems

Finite Element Analysis

  • Combined Testing and Analysis on a PC using MSC/pal and STAR
  • Experimental FEA...Much More than Pretty Pictures!
  • Experimental Modal Analysis, Structural Modifications and FEM Analysis on a Desktop Computer
  • Mass, Stiffness and Damping Matrix Estimates from Structural Measurements
  • Modal Analysis Versus Finite-Element Analysis
  • Using FEA Modes to Scale Experimental Mode Shapes
  • FEA Model Updating Using SDM
  • FEA Using Photo Models

Arranged by Technical Paper Number

  1. Operating Deflection Shapes from Time Versus Frequency Domain Measurements
  2. Using SDM to Train Neural Networks for Solving Modal Sensitivity Problems
  3. Mass, Stiffness, and Damping Matrices from Measured Modal Parameters
  4. Measurement and Analysis of the Dynamics of Mechanical Structures
  5. Global Curve Fitting of Frequency Response Measurements using the Rational Fraction Polynomial Method
  6. Global Frequency and Damping Estimates from Frequency Response Measurements
  7. Parameter Estimation From Frequency Response Measurements using Rational Fraction Polynomials
  8. Structural Modifications Using Higher Order Elements
  9. Fundamentals of the Discrete Fourier Transform
  10. Is it a Mode Shape, or an Operating Deflection Shape?
  11. Virtual Experimental Modal Analysis (VEMA)
  12. Effective Measurements for Structural Dynamics Testing (Parts 1 and 2)
  13. Identification of the Modal Properties of an Elastic Structure from Measured Transfer Function Data
  14. Comparison of Analytical and Experimental Rib Stiffener Modifications to a Structure
  15. Mass, Stiffness and Damping Matrix Estimates from Structural Measurements
  16. Structural Dynamics Measurements
  17. Complex Mode Indication Function and its Applications to Spatial Domain Parameter Estimation
  18. Detection and Location of Structural Cracks using FRF Measurements
  19. Determination of Modal Sensitivity Functions for Location of Structural Faults
  20. Correlating Minute Structural Faults with Changes in Modal Parameters
  21. Continuous Monitoring of Modal Parameters to Quantify Structural Damage
  22. Determining the Accuracy of Modal Parameter Estimation Methods
  23. Modal Testing using Multiple References
  24. Fault Detection in Structures from Changes in Their Modal Parameters
  25. Experimental Modal Analysis, Structural Modifications and FEM Analysis on a Desktop Computer
  26. Combined Testing and Analysis on a PC using MSC/pal and STAR
  27. Simultaneous Structural Dynamics Modification (S2DM)
  28. Experimental Modal Analysis
  29. Introduction to Operating Deflection Shapes
  30. Derivation of Mass, Stiffness and Damping Parameters From Experimental Modal Data
  31. Modal Mass, Stiffness and Damping
  32. Measuring Operating Deflection Shapes under Non-Stationary Conditions
  33. Modal Parameter Estimation from Ambient Response Data
  34. Post-Processing Ambient and Forced Response Bridge Data to Obtain Modal Parameters
  35. The Multivariate Mode Indicator Function in Modal Analysis
  36. Viscous versus Structural Damping in Modal Analysis
  37. Modal Analysis for the Connoisseur
  38. Locating Optimal References for Modal Testing
  39. Parameter Estimation From Frequency Response Measurements using Rational Fraction Polynomials (20 Years of Progress)
  40. Scaling Mode Shapes Obtained from Operating Data
  41. Obtaining Stresses and Strains from ODS Data
  42. Modal Parameter Estimation from Operating Data
  43. Measurements Required for Displaying Operating Deflection Shapes
  44. Experimental FEA...Much More than Pretty Pictures!
  45. On Pressure Mode Shapes Arising from Rotor/Stator Interactions
  46. Using FEA Modes to Scale Experimental Mode Shapes
  47. Modal Analysis Versus Finite-Element Analysis
  48. FEA Model Updating Using SDM
  49. De-Convolution Window for Operating Modal Analysis
  50. FEA Using Photo Models
  51. Using ODS's to Detect Shaft Misalignment in Rotating Equipment
  52. Using Operating Deflection Shapes to Detect Unbalance in Rotating Equipment
  53. Using Impulse Response Functions to Evaluate Baseball Bats
  54. Simulating Base-Shake Environmental Testing
  55. Modes Indicate Cracks in Turbine Blades
  56. Using Operating Deflection Shapes to Detect Faults in Rotating Equipment