COURSE OBJECTIVES CHAPTER 4 4. STABILITY

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I COURSE OBJECTIVES CHAPTER 4 4. STABILITY 1. Explain the concepts of righting arm and righting moment and show these concepts on a sectional vector diagram of the ship s hull that is being heeled over by an external couple. 2. Calculate the righting moment of a ship given the magnitude of the righting arm. 3. Read, interpret, and sketch a Curve of Intact Statical STABILITY (or Righting Arm Curve) and draw the sectional vector diagram of forces that corresponds to any point along the curve. 4. Discuss what tenderness and stiffness mean with respect to naval engineering. 5. Evaluate the STABILITY of a ship in terms of: a. Range of STABILITY b. Dynamic STABILITY c. Maximum Righting Arm d. Maximum Righting Moment e.

Notice the perpendicular distance between the lines of action of ... 4.1 changes as the ship is heeled over from zero degrees to large enough angles of heel to make the ship capsize. To help us conceptualize this process, a graph of heeling angle (degrees) versus ... stability characteristics of different hull shapes can be compared as well as ...

  Phases, Glean, Line, Perpendicular