259_add_Added Masses of Ship Structures.pdf - 248 5 Added Masses of Bodies Moving Close to a Free Surface 22 = n(s 22 = s=1 26 = n 66 = s=1(s j22 s=1(s

• Homework Help
• 2

This preview shows page 1 - 2 out of 2 pages.

248 5 Added Masses of Bodies Moving Close to a Free Surface λ 22 = n s = 1 λ (s) 22 = n s = 1 j (s) 22 m i = 1 λ 22 i s ; λ 26 = n s = 1 λ (s) 22 x s = n s = 1 j (s) 22 m i = 1 λ 22 i s x s ; λ 66 = n s = 1 λ (s) 66 + n s = 1 λ (s) 22 x 2 s = n s = 1 j (s) 66 m i = 1 λ 66 i s + n s = 1 j (s) 22 m i = 1 λ 22 i s x 2 s . In these formulas x s is the x -coordinate (the x -axis is chosen along the central line of the consist) of the center of mass of each section with respect to the origin which is chosen in the center of mass of the consist. These formulas were verified by systematic model experiments. 5.13 Added Masses of Rafts Added masses of a raft taking into account the bending effect were considered in [195]. Inertial characteristics of the raft were determined as functions of its length L , width B , and radius of curvature of its central line under bending R (or curvature κ = 1 /R ). The longitudinal axis Ox and the transversal axis Oy are chosen in the plane of the raft. Combining theoretical and experimental data one gets the follow- ing approximate formulas, which take into account the penetrability of the (unbent) raft: k 11 = λ 11 m = 1 . 3 0 . 041 0 . 0027 L B ; k 22 = λ 22 m = 1 . 3 0 . 043 + 0 . 0085 L B , where

Subscribe to view the full document.

• Fall '09

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes