Development of noncontact measurement methods using multiple laser displacement sensors for bending and torsional vibration stresses in piping systems
| Autor: | Michiyasu Noda, Akira Maekawa, Michiaki Suzuki, Masanori Shintani |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Piping Torsional vibration business.industry Mechanical Engineering 020208 electrical & electronic engineering 010401 analytical chemistry 02 engineering and technology Structural engineering Bending 01 natural sciences Displacement (vector) 0104 chemical sciences Vibration Stress (mechanics) Mechanics of Materials Normal mode Physics::Atomic and Molecular Clusters 0202 electrical engineering electronic engineering information engineering General Materials Science Physics::Chemical Physics business Vibration fatigue |
| Zdroj: | International Journal of Pressure Vessels and Piping. 137:38-45 |
| ISSN: | 0308-0161 |
| DOI: | 10.1016/j.ijpvp.2015.05.002 |
| Popis: | In this study, two methods to measure bending and torsional vibration stresses of piping systems conveniently and quickly are proposed. The proposed methods are composed of a modeling approach of piping vibration and noncontact measurement techniques. The methods assume the vibration modes as a primary mode within the measuring range without the mode-identification and then estimate the vibration stress by approximating the vibration displacements measured in a noncontact manner as a primary mode. This paper presents the principles and calculation formulas of both methods and shows the measurement techniques for the bending and torsional vibration stresses using laser displacement sensors. Finally the applicability of one method is discussed based on the results of a vibration experiment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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