Fundamental mode shape estimation and element stiffness evaluation of girder bridges by using passing tractor-trailers

2022 ◽  
Vol 169 ◽  
pp. 108746
Author(s):  
Yang Yang ◽  
Huicheng Lu ◽  
Xiaokun Tan ◽  
Hwa Kian Chai ◽  
Ruiqiong Wang ◽  
...  
Keyword(s):  
Mode Shape ◽  
Fundamental Mode ◽  
Shape Estimation ◽  
Girder Bridges ◽  
Stiffness Evaluation

Implementing physical constraints for noise-only mode shape estimation on real data

2014 ◽  
Vol 135 (4) ◽  
pp. 2168-2168
Author(s):  
Ian M. Rooney ◽  
John R. Buck ◽  
Kathleen E. Wage
Keyword(s):  
Mode Shape ◽  
Real Data ◽  
Shape Estimation ◽  
Physical Constraints

Mode shape estimation algorithms under ambient conditions: A comparative review

2013 ◽  
Vol 28 (2) ◽  
pp. 779-787 ◽  
Author(s):  
Luke Dosiek ◽  
Ning Zhou ◽  
John W. Pierre ◽  
Zhenyu Huang ◽  
Daniel J. Trudnowski
Keyword(s):  
Mode Shape ◽  
Ambient Conditions ◽  
Shape Estimation ◽  
Estimation Algorithms ◽  
Comparative Review

scholarly journals A 10-MHz FREE-FREE BEAM MICROMECHANICAL RESONATOR FABRICATION PROCESS USING SURFACE-MICROMACHINED TECHNOLOGY

2022 ◽  
Vol 36 (06) ◽  
Author(s):  
TAN-LOC NGUYEN
Keyword(s):  
Mode Shape ◽  
Fundamental Mode ◽  
Layout Design ◽  
Fabrication Process ◽  
Q Value ◽  
Standard Process ◽  
Mems Resonator ◽  
Second Mode ◽  
Motional Resistance ◽  
Free Beam

The fabrication process for the designed MEMS resonator using surface-micromachined technology is presented in this paper. A 10-MHz Free-Free beam MEMS resonator is designed to vibrate in the second-mode shape, which is significant improvement compare to the fundamental mode. The design showed a Q value as high as 75,000, which is significant improvement compared to 8,400 VHF F-F beam MEMS resonator by K. Wang; and very low motional resistance (18kΩ). The surface-micromachined technology is used as the standard process for the design. The process is briefly described from the layout design to the experimental fabricated device.

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