offshoreguy
10-05-2009, 04:31 PM
When somebody wants navigate, he exposes to rare high waves, so the solution is increase a lot the security factor and also the light ship weight.
Resonance frequency makes vessel be exposed not 3 or 4 times to the initial design resistance, but also x15 or x30.
A solution is to set a acquisition system with accelerometers in 4 main points in order to monitorize acceleration, and when exposed to more than 2g advise to captain in order to:
1. Decrease speed
2. Change pitch
3. Move sails in order to damp the oscillation (perhaps using a motor)
An acquisition system and accelerometers can be more cheap than increase hull resistance.
Resonance frequency makes vessel be exposed not 3 or 4 times to the initial design resistance, but also x15 or x30.
A solution is to set a acquisition system with accelerometers in 4 main points in order to monitorize acceleration, and when exposed to more than 2g advise to captain in order to:
1. Decrease speed
2. Change pitch
3. Move sails in order to damp the oscillation (perhaps using a motor)
An acquisition system and accelerometers can be more cheap than increase hull resistance.