In PV-Elite, if we want to introduce the External Forces and Moments using "FOrces and Moments Dialog Box", the Loads are considered to act at centre of Vessel. Is there any facility to introduce the External Nozzle Loads which will be coming on to the Nozzle to shell/Head junction?

Hello Swamirao

The force dialogue box simply asks for the elevation (or distance from node), and the direction of the force in the x,y and z directions. This force will always pass through the centreline of the vessel. It is not possiblt to locate a force at a specific location, such as the flange of a nozzle, because the nozzle will not 'see' this force. Let us now break your question down:

1 If you wish to consider the effect on the vessel (not the nozzle) of a force applied at a particular point, you will have to break the force down to a force plus the moment of this force generated by taking its distance from the centreline multiplied by the force. By then adding the force and its out of position moment, the vessel will then see the force and its position.

2 However, if you want the nozzle to see this force, you will have to use the component analysis module of PVElite, and perform a local loading analysis such as WRC107 etc.

I know this is a long winded way of setting up the force when it is not passing through the centreline of the vessel, but it will work. Care will of course be required to determine the moment, which might produce torsion.