Frank looked around the room. "That first table there, they gave their table to this group at the bar. These guys are all executives from PepsiCo. If you have a table, you can give it to your friends, your business associates, or to a charity auction. I had Bobby Flay, Michael Romano, a whole bunch of big chefs last week and I didn' t know they're coming. I never know who's coming in. That's what makes it wonderful. It's serendipity. There's no grand design or plan. The only caveat is if you're not going to use your table and no one else is going to use that table, that's when you call me." Good guy. I like him. He's okay. I could sit with Peter King and say what I like and what I don't like. I'm a political junkie," Frank says. There's a letter from President George H.W. Bush on the wall. Frank doesn't discriminate. The system used to define wave direction. In OrcaFlex 0° means waves approaching the vessel from astern and 90° means waves coming from the starboard side, but if a different convention applies to your data then you must allow for this when entering the data.

Different modelling and design criteria will affect the nature of the 'ideal' RAO curves (as plotted graphically) being sought for a particular ship: for example, an ocean cruise liner will have a considerable emphasis placed upon minimizing accelerations to ensure the comfort of the passengers, while the stability concerns for a naval warship will be concentrated upon making the ship an effective weapons platform. The RAO is a transfer function that is only defined when the ship motions can be assumed to be linear. The above forces can then be assembled into an equation of motion: A surge RAO of 0.5 in a wave of height 4m (and hence wave amplitude 2m) means that the vessel surges to and fro -1m to +1m from its static position; a pitch RAO of 0.5° per metre in the same wave means that the vessel pitches from -1° to + 1°.RAOs can be obtained either from model tests or from diffraction analysis software. The data may be presented in tabular or graphical form: tables of numbers are better for our purposes since they can be imported directly into OrcaFlex (see importing hydrodynamic data).

Just think about what happened while you were here," he tells me, putting his hand on my forearm for emphasis. "You met my tailor. You met Tony Tantillo. You met Tony Abbot." (I met a trio of Tonys, if you include Tony the bartender.) "You met all these people. You met the congressman. You're seeing Rao's." And because it's so bright, which Frank says is because "it adds to the energy of the room," I really am seeing everything. Whether the rotational RAO data are in degrees (or radians) of rotation per metre (or foot) of wave amplitude, or in degrees (radians) per degree (radian) of wave slope or wave steepness. Where x {\displaystyle x} is a rigid body motion such as heave, ω {\displaystyle \omega } is the oscillation frequency, M {\displaystyle M} is the structural mass and inertia A ( ω ) {\displaystyle A(\omega )} is the added mass (frequency dependent), B ( ω ) {\displaystyle B(\omega )} is the linear damping (frequency dependent), C {\displaystyle C} is the restoring force coefficient (stiffness matrix) and F ( ω ) {\displaystyle F(\omega )} is the harmonic excitation force proportional to the incoming wave ζ = ζ a e i ω t {\displaystyle \zeta =\zeta _{a}e We laughed and cried for two days and at the end, he says to me, why don't you come by the restaurant?" Abbot tells me.On a computer the above algorithm was first introduced by using strip theory and Boundary Element Method. Today both of the methods are still used if the need for fast calculations outweigh the need for precise results and the ship designer knows the limitations of strip theory. More advanced programs that are used today utilizes Boundary Element Method through different applications (such as WAMIT, SESAM WADAM, MOSES, NeMOH and ANSYS AQWA) some may also include the effects of viscosity. The insight into the forces that governs the seakeeping behavior of a ship gained from the above are of course still valid within considered limits of free surface linearity. The Diffraction forces, which are pressures that occur due to the disturbances in the water because of a body being present. How we doing guys? I'm Joe," our waiter says. He sits down at the table. "What we like to do is, we serve everything family-style. For appetizers we have seafood salad, roasted peppers, baked clams, fried calamari, mozzarella in carrozza (that's deep fried), fresh mozzarella and tomato. We could do a salad. I also have mussels in white wine sauce. Those are the appetizers." She doesn't eat shellfish or meat," I say, louder this time. "But I eat everything and I want to try what you're known for." There are many different conventions for defining RAOs. There have been attempts at standardisation, but these have not been successful so there remain differences between the main computer programs and model basins: some establishments even use different conventions for reporting model and computed data. The only safe course is to obtain a complete description of the system used for the data in each case.

There's only one table for two in the restaurant. "And if you're willing to wait, I'll feed you at that deuce," Pellegrino says. In the above, "Ship" must be interpreted widely to also include other forms of floating structures. The obvious problem in the above method is the neglection of viscous forces which contribute heavily in modes of motion like surge and roll. The Orcina convention is to use the amplitude of response (in length units for surge, sway, heave, in degrees for roll, pitch, yaw) per unit wave amplitude, and to use the phase lag from the time the wave crest passes the RAO origin until the maximum positive excursion is reached (in other words, the phase origin being at the RAO origin). Mathematically, this is given by I am married 46 years," he says. "Same woman. She's great. I love my wife. 46 years. Does she come here? No. I don't want her here. When I come here, I work. What am I going to do? Sit with her at the bar? I have people I have to talk to, things I have to do."Can't hear you," he says, pointing to his ear. (Now I understand whom the gruff waiters at Carbone are copying.) And this is Tony Tantillo. He's on CBS every day, cooking with his daughter," Frank says, introducing us to another friend who's come up to the bar. "Listen, Tantillo. I gotta tell you. You're too good-looking. You're too handsome."

No one gives them up," he says. "Every table has been booked every night for the past 38 years. There's weeklies, biweeklies, monthlies, and quarterlies, so in every three-month period, I see all my clients. And now I'm dealing with their children and grandchildren." A surge force RAO of 300 kN/m in a wave of height 6m (and hence wave amplitude 3m) means that a vessel experiences a surge force varying harmonically between -900kN and +900kN over each wave cycle; a pitch moment RAO of 1e6 kN.m/m in the same wave means that the vessel experiences a moment about the y axis varying from -3e6 kN.m to +3e6 kN.m.A waiter comes over and says he's setting a table for us. We invite Frank to join us, since it's unclear whether he's eaten tonight, but he politely declines. He says he'll come sit with us later on, but he won't eat. One deuce," Emma—who's in graduate school and until recently worked part-time as a restaurant hostess—corrects me. The Froude–Krylov force, which is the pressure in the undisturbed waves integrated over the wetted surface of the floating vessel.