| ชื่อเรื่อง | : | Parametric modelling of nonstationary platform deck motions |
| นักวิจัย | : | Mandal, S. |
| คำค้น | : | models , offshore , dynamics , modelling , entropy |
| หน่วยงาน | : | National Institute Of Oceanography (NIO), India |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2540 |
| อ้างอิง | : | Proceedings of the Second Indian National Conference on Harbour and Ocean Engineering (Inchoe-97), Thiruvananthapuram, December 7-10, 1997. Vol. 1, 368-377p. , http://drs.nio.org/drs/handle/2264/2083 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | - |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | Univariate system identification models are, in general, developed based on teh assumption that offshore dynamic systems are stationary random processes. For nonstationary processes, a method is adopted to transform the time series into wide-sense-stationary processes. Then the time series are modelled by the maximum entropy method which is formulated here for spectral estimation of platform deck displacements. The lower order maximum entropy spectra of nonstationary platform deck displacements are compared with fast Fourier transform spectra and show good agreement. However, the higher order maximum entropy model can be used for better representation of nonstationary motions. This method also reduces long time series of nonstationary offshore data into a few values which are teh coefficients of the maximum entropy model. |
| บรรณานุกรม | : |
Mandal, S. . (2540). Parametric modelling of nonstationary platform deck motions.
: National Institute Of Oceanography (NIO), India. Mandal, S. . 2540. "Parametric modelling of nonstationary platform deck motions".
: National Institute Of Oceanography (NIO), India. Mandal, S. . "Parametric modelling of nonstationary platform deck motions."
: National Institute Of Oceanography (NIO), India, 2540. Print. Mandal, S. . Parametric modelling of nonstationary platform deck motions. : National Institute Of Oceanography (NIO), India; 2540.
|
ridm@nrct.go.th ระบบคลังข้อมูลงานวิจัยไทย รายการโปรดที่คุณเลือกไว้
