Natural Frequencies of a Railroad TrackSource: Journal of Applied Mechanics:;1987:;volume( 054 ):;issue: 002::page 299Author:S. P. Patil
DOI: 10.1115/1.3173011Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The natural frequency of an infinite railroad track was first determined by Timoshenko as ωR = √k/m , where k is the constant for the massless Winkler foundation and m is the mass per unit length of the rail. The natural frequencies of the track are determined here by modeling the track as a beam resting on a 3-D inertial elastic layer. It is shown that the mass of the supporting foundation has a significant effect on the natural frequencies of a railroad track. Finally, the concept of “added mass” is introduced in order to determine the natural frequency in a desired mode of vibration, by modeling the track as a beam on the massless Winkler foundation and adding the mass of the foundation to the beam.
keyword(s): Frequency , Railroads , Modeling , Vibration AND Rails ,
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| contributor author | S. P. Patil | |
| date accessioned | 2017-05-08T23:24:12Z | |
| date available | 2017-05-08T23:24:12Z | |
| date copyright | June, 1987 | |
| date issued | 1987 | |
| identifier issn | 0021-8936 | |
| identifier other | JAMCAV-26281#299_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/102114 | |
| description abstract | The natural frequency of an infinite railroad track was first determined by Timoshenko as ωR = √k/m , where k is the constant for the massless Winkler foundation and m is the mass per unit length of the rail. The natural frequencies of the track are determined here by modeling the track as a beam resting on a 3-D inertial elastic layer. It is shown that the mass of the supporting foundation has a significant effect on the natural frequencies of a railroad track. Finally, the concept of “added mass” is introduced in order to determine the natural frequency in a desired mode of vibration, by modeling the track as a beam on the massless Winkler foundation and adding the mass of the foundation to the beam. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Natural Frequencies of a Railroad Track | |
| type | Journal Paper | |
| journal volume | 54 | |
| journal issue | 2 | |
| journal title | Journal of Applied Mechanics | |
| identifier doi | 10.1115/1.3173011 | |
| journal fristpage | 299 | |
| journal lastpage | 304 | |
| identifier eissn | 1528-9036 | |
| keywords | Frequency | |
| keywords | Railroads | |
| keywords | Modeling | |
| keywords | Vibration AND Rails | |
| tree | Journal of Applied Mechanics:;1987:;volume( 054 ):;issue: 002 | |
| contenttype | Fulltext |