Nonlinear free vibration of a steel catenary riser

Conference proceedings article

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Klaycham K., Athisakul C., Chucheepsakul S.

ผู้เผยแพร่: International Society of Offshore and Polar Engineers

ปีที่เผยแพร่ (ค.ศ.): 2014

หน้าแรก: 195

หน้าสุดท้าย: 201

จำนวนหน้า: 7

ISBN: 9781880653913

นอก: 1098-6189

eISSN: 1098-6189

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84906919367&partnerID=40&md5=584f5ee032205b86d33780b3ed20763a

ภาษา: English-Great Britain (EN-GB)

บทคัดย่อ

This paper presents a finite element method for nonlinear free vibration analysis of a steel catenary marine riser. The energy method based on the Hamilton's principle is used to derive the nonlinear equation of motion. The work-energy functional is composed of the strain energies due to axial deformation and bending and also the works done by inertia forces of riser and transporting fluid motions. The nonlinear stiffness matrix, the mass matrix, and the gyroscopic matrix of the riser system are developed by using the finite element technique. Consequently, the nonlinear natural frequencies and their corresponding mode shapes are determined by solving the eigenvalue problem incorporating with the direct iteration technique. The examples of large amplitude free vibration of the steel catenary riser with various horizontal offsets and top tensions are also presented in this paper. Copyright ฉ 2014 by the International Society of Offshore and Polar Engineers (ISOPE).

คำสำคัญ

Large amplitude, Nonlinear free vibration, Nonlinear natural frequency, Steel catenary riser