GrabCAD
Lurssen wind problem
by GrabCAD
Last crawled date: 1 year, 10 months ago
This solution uses the gap between the actuator and the fluid container to permit only a small amount of fluid to pass. The density of the fluid versus the gap will determinate the maximum rotational speed and acceleration of the door. This solution has some more details which need to be explained.
1- The door hinge is continuous to permit the glass to pass the load gently to the supports otherwise it may suffer torsion for the unbalanced load.
2- The thrust bearing on the top of the ceiling support most of the mass of the structure but another damper can be used in that place, if needed.
3- Underneath the fluid container is a gap which can receive an electric heather to maintain the fluid temperature above certain level.
4- On the limits of actuator movement connectors can be placed to permit an hydraulic pump to move the door in case of extreme winds.
5- The actuator has been designed for a torsion load of 400 Nm.
6- All the structural parts are intended to be in aluminum 6061. This material is easily machined, welded and can be heat treated (T4, T6) to gain more strength.
7- The cover and the fluid container are meant to be threaded. The sealing has made for O-rings. Once is mounted, its maintenance free.
8- If needed the fluid container can be filled with magnetorheological fluid. In case of strong winds the computer of the ship can change the damping coefficient of the system.
9- The mounting points can’t be designed without the exact model of the installation site.
10- The actual course of the door is 140°.
1- The door hinge is continuous to permit the glass to pass the load gently to the supports otherwise it may suffer torsion for the unbalanced load.
2- The thrust bearing on the top of the ceiling support most of the mass of the structure but another damper can be used in that place, if needed.
3- Underneath the fluid container is a gap which can receive an electric heather to maintain the fluid temperature above certain level.
4- On the limits of actuator movement connectors can be placed to permit an hydraulic pump to move the door in case of extreme winds.
5- The actuator has been designed for a torsion load of 400 Nm.
6- All the structural parts are intended to be in aluminum 6061. This material is easily machined, welded and can be heat treated (T4, T6) to gain more strength.
7- The cover and the fluid container are meant to be threaded. The sealing has made for O-rings. Once is mounted, its maintenance free.
8- If needed the fluid container can be filled with magnetorheological fluid. In case of strong winds the computer of the ship can change the damping coefficient of the system.
9- The mounting points can’t be designed without the exact model of the installation site.
10- The actual course of the door is 140°.
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