The dynamic response of an axially accelerating, elastic, tensioned beam is investigated. The time-dependent velocity is assumed to vary harmonically about a constant mean velocity. These systems experience a coriolis acceleration component which renders such systems gyroscopic. The equation of moti
VIBRATIONS OF AN AXIALLY ACCELERATING BEAM WITH SMALL FLEXURAL STIFFNESS
✍ Scribed by E. ÖZKAYA; M. PAKDEMİRLİ
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 163 KB
- Volume
- 234
- Category
- Article
- ISSN
- 0022-460X
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✦ Synopsis
Transverse vibrations of an axially moving beam are considered. The axial velocity is harmonically varying about a mean velocity. The equation of motion is expressed in terms of dimensionless quantities. The beam e!ects are assumed to be small. Since, in this case, the fourth order spatial derivative multiplies a small parameter, the mathematical model becomes a boundary layer type of problem. Approximate solutions are searched using the method of multiple scales and the method of matched asymptotic expansions. Results of both methods are contrasted with the outer solution.
2000 Academic Press 0022-460X/00/280521#15 $35.00/0 *y *x
O( 1):
, ( 36)
O( ): (v !1) *y *x #v D *y *x "! *y *¹ !v cos ¹ *y *x # *y *x !2v *y *x *¹ # *y *x *¹ !2v sin ¹ *y *x *¹ # *y *x *¹ !(v !1) *y *x #2 *y *x *x !2v v sin ¹ *y *x #2 *y *x *x # *y *x !v sin ¹ *y *x !v D *y *x #4 *y *x *x #6 *y *x *x #4 *y *x *x !2 *y *¹ *¹ !2v *y *x *¹
📜 SIMILAR VOLUMES
The vibration of an axially moving string is studied when the string has geometric non-linearity and translating acceleration. Based upon the von Karman strain theory, the equations of motion are derived considering the longitudinal and transverse de#ections. The equation for the longitudinal vibrat