clarifications on technical specifications

[AngeloB]

greeting everyone
I was asked to size supports for an object to be installed on board
Among the many things the specification of the object says that it was designed to resist an acceleration of +/-1 g parallel to the bridge and +/-2g perpendicular to the bridge.
means that, leaving the transformations from kg to n, if the object weighs 100kg its support must resist at least one horizontal force of +/-100 kg and vertical of +/-200kg
I believe that this specification has been made to take into account in some way the stresses that a ship must endure with the sea in storm.
Since it is the first time I find clearly an indication of how to take into account this condition, how reasonable is required or in reality the accelerations can be even greater?

greeting everyone

 

[Fulvio Romano]

no, the horizontal force should be 100+-200, then -100 / +300. I believe that g is added to those of gravity, otherwise it would not explain symmetry.

I have no experience about it, but 2g vertical seem excessive. consider that downward acceleration will never be less than zero, unless the ship is "transported" downwards. If it was just dropped, the acceleration would be 0.

 

[AngeloB]

Unfortunately I cannot ask for explanations to those who have made the specifications.
according to me horizontally +/-1 g means +/-100 kg
If 100kg were laid on a floor there would be no horizontal forces.
forces are born because the ship rolls and catches

 

[numero1]

I'm sorry, but when I took care of the ship I also saw the specifications of a helicopter yacht, in this case, 2g vertical would not be excessive, right?
sometimes the yachts themselves have the hangar (if big enough) otherwise you keep the helicopter on the deck and you have to stop it.
Tell me if I wrote a belina
Hi.

 

[AngeloB]

I believe that the specifics that take account of the accelerations serve to simplify a somewhat more complicated account (hò put the dispenses available in another forum).
I am not able to say which is the best method of calculation to take into account extreme weather conditions.
and a topic that interests me and I thank those who are willing to provide useful information.