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Title of Journal: Exp Mech

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Abbravation: Experimental Mechanics

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Springer US

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DOI

10.1016/0304-8853(80)90617-4

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1741-2765

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Experimental Testing of a Moving Force Identificat

Authors: C W Rowley E J OBrien A Gonzalez A Žnidarič
Publish Date: 2008/11/18
Volume: 49, Issue: 5, Pages: 743-746
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Abstract

Bridge weighinmotion systems are based on the measurement of strain on a bridge and the use of the measurements to estimate the static weights of passing traffic loads Traditionally commercial systems employ a static algorithm and use the bridge influence line to infer static axle weights This paper describes the experimental testing of an algorithm based on moving force identification theory In this approach the bridge is dynamically modeled using the finite element method and an eigenvalue reduction technique is employed to reduce the dimension of the system The inverse problem of finding the applied forces from measured responses is then formulated as a least squares problem with Tikhonov regularization The optimal regularization parameter is solved using the Lcurve method Finally the static axle loads impact factors and truck frequencies are obtained from a complete time history of the identified moving forces


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  2. Dynamic Separation of Resistance Spot Welded Joints: Part II—Analysis of Test Results and a Model
  3. Hydrodynamic Interactions at Low Reynolds Number
  4. Impact of Experimental Uncertainties on the Identification of Mechanical Material Properties using DIC
  5. New Developments in Proton Radiography at the Los Alamos Neutron Science Center (LANSCE)
  6. A Tensile Split Hopkinson Bar for Testing Particulate Polymer Composites Under Elevated Rates of Loading
  7. Mechanical Properties of Ti-6Al-4V Selectively Laser Melted Parts with Body-Centred-Cubic Lattices of Varying cell size
  8. Hybrid Thermoelastic Stress Analysis of a Pinned Joint
  9. Sensitivity to Axial Stress of Electro-Mechanical Impedance Measurements
  10. Accuracy of the Sampling Moiré Method and its Application to Deflection Measurements of Large-Scale Structures
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  12. Analysis of Cracks and Deformations in a Full Scale Reinforced Concrete Beam Using a Digital Image Correlation Technique
  13. Slip Damping Mechanism in Welded Structures Using Response Surface Methodology
  14. Effect of Varying Test Parameters on Elastic–plastic Properties Extracted by Nanoindentation Tests
  15. Application of Digital Image Correlation (DIC) in Dynamic Notched Semi-Circular Bend (NSCB) Tests
  16. Experimental Methodology for Studying Strain Heterogeneity with Microstructural Data from High Temperature Deformation
  17. Tailoring Beam Mechanics Towards Enhancing Detection of Hazardous Biological Species
  18. Strain Measurements Through Optimized Particle Tracking in Volumetric Images: Methodology and Error Assessment
  19. Comparison between Digital Fresnel Holography and Digital Image-Plane Holography: The Role of the Imaging Aperture
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  23. Designing a Uniaxial Tension/Compression Test for Springback Analysis in High-Strength Steel Sheets
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