Rev 11.0 is a major release for our newer software.

Many of the changes are transparent to the user, but there have been many changes which set the foundation for the additions which will be made in the next release. There have recently been several major projects analyzed with MOSES, and as a result, several things were modified to make the program more efficient and reliable for large problems with strange shapes and with many load cases.

The &EXECUTE command has been eliminated with all of the options previously available on this command now being available with &DEVICE. This was done since there was really no logical reason to separate the two commands, but for the reasonable future, &EXECUTE will still be available. Now, however, it is simply a synonym for &DEVICE. A new option -CLR_SCREEN has been added to &DEVICE to allow one to instruct the program not to clear the screen when menus change, or when a new page is created, and the new option -MECHO will echo commands within a macro. Also, the manner in which plots to the screen are ended has been made consistent ( almost) across machines. Now, to return to a program after a plot, one should hit a carriage return. This is not input to the program, but simply an instruction that you are finished viewing the plot. On a PC or a SUN, hitting any key will accomplish the same purpose.

The &SYSTEM menu is not longer available. This was done primarily at the request of users who objected to "constantly" entering and exiting this menu. All of the commands previously available in this menu have been replaced by seven new internal commands: &WEIGHT, &CMP_BAL, &COMPARTMENT, &APPLY, &C_LENGTH, &M_ANCHOR, and &CO_STAT. While these changes were made, several new capabilities were incorporated. Namely, one can now specify a minimum and a maximum amount of ballast which can be put into a tank with a &CMP_BAL (perviously a COMBAL). Also, one can now specify the amount of ballast in a tank with either a weight, a percentage, or a fraction. Valve data can now be input directly with the other compartment data, or can be added in the MEDIT menu, and tanks can now have a minimum amount of ballast which will not create a free surface correction.

In view of the fact that the data previously specified with PUMP and SHUT is now specified on the &CMP_BAL command, the &STATUS PUMP has been deleted. A new status BAL_COMPARTMENT has been created which returns the weight of the ballast in the tanks instead of the percentages full.

The manner of defining launch ways has been changed so that the definition is more natural. This resulted in the LMEM command being removed. If one has not used LMEM, then the new definition is upwardly compatible. The reason for this change is that restraints due to a launch way are not included in a stress analysis. It is now possible to perform a stress analysis of both the barge and the jacket at all stages during the launch.

Finally, the data structure has been altered to allow for many more things to change during a user defined process. Now, the only things which must remain constant during a process is the environment and the user defined weight.