Helixx
Computer
- May 19, 2009
- 2
Hello,
I'm trying to design a system that can apply varying amounts of torque to a rotating shaft for variable amounts of time.
This torque may be applied in the direction of rotation or in the opposite direction of rotation.
So my setup would have an engine attached to a transmission which is then attached to a rotating shaft all mounted in a fixed position in the "lab". This engine has its own independent acceleration and braking mechanism as well. Braking is accomplished by restricting the shaft rotation. Let's call this "System A".
At the end of the shaft is a hub to which I can connect my "reverse torque" system to. Let's call this "System B".
So "System A" will be run independently accelerating and braking through a separate control mechanism/user. Then at various times, essentially random times, I want "System B" to apply a variable torque value to this hub in either the same direction of rotation or opposite direction of rotation for a specific duration of time. This time duration may have a maximum of about 10-15 seconds or so but most often less.
System B needs to be quite responsive and must be able to provide say about 80% (still to be evaluated) of the engine torque for system runs of about 10-15 mins before "recharging" etc...if required.
I've been looking into various technologies to use to provide the "reverse torque" such as an electric motor, electro-mechanical, electro-hydraulic, hydraulic etc... but I'm not sure which would be best in terms of cost, size, maintenance etc...as I don't have much experience/knowledge in those areas.
On average engines in System A will have a range up to about 300HP but I would like the system to accomodate higher power engines as well, say to about 600HP. I can attach 2 "reverse torque" devices to the shaft acting synchronously in order to reduce the power/torque requirements for an individual device if need be.
So I'm not sure if an electric motor of sufficient power is available to provide enough "reverse torque" and be able to switch direction of rotation relatively easily. Any thoughts on this?
From my basic research perhaps an electro-hydraulic or hydraulic system using hydraulic motors & pumps would have enough power. Ideally I would like System B to be as small as possible with enough power to do the job and easily attachable to the hub while hopefully not costing an enormous amount.
I think it would be preferable to use an electric motor as I'm assuming it would be simpler to implement/setup and have lower maintenance/safety requirements etc...
I really would appreciate some help in getting this design started.
Thanks.
I'm trying to design a system that can apply varying amounts of torque to a rotating shaft for variable amounts of time.
This torque may be applied in the direction of rotation or in the opposite direction of rotation.
So my setup would have an engine attached to a transmission which is then attached to a rotating shaft all mounted in a fixed position in the "lab". This engine has its own independent acceleration and braking mechanism as well. Braking is accomplished by restricting the shaft rotation. Let's call this "System A".
At the end of the shaft is a hub to which I can connect my "reverse torque" system to. Let's call this "System B".
So "System A" will be run independently accelerating and braking through a separate control mechanism/user. Then at various times, essentially random times, I want "System B" to apply a variable torque value to this hub in either the same direction of rotation or opposite direction of rotation for a specific duration of time. This time duration may have a maximum of about 10-15 seconds or so but most often less.
System B needs to be quite responsive and must be able to provide say about 80% (still to be evaluated) of the engine torque for system runs of about 10-15 mins before "recharging" etc...if required.
I've been looking into various technologies to use to provide the "reverse torque" such as an electric motor, electro-mechanical, electro-hydraulic, hydraulic etc... but I'm not sure which would be best in terms of cost, size, maintenance etc...as I don't have much experience/knowledge in those areas.
On average engines in System A will have a range up to about 300HP but I would like the system to accomodate higher power engines as well, say to about 600HP. I can attach 2 "reverse torque" devices to the shaft acting synchronously in order to reduce the power/torque requirements for an individual device if need be.
So I'm not sure if an electric motor of sufficient power is available to provide enough "reverse torque" and be able to switch direction of rotation relatively easily. Any thoughts on this?
From my basic research perhaps an electro-hydraulic or hydraulic system using hydraulic motors & pumps would have enough power. Ideally I would like System B to be as small as possible with enough power to do the job and easily attachable to the hub while hopefully not costing an enormous amount.
I think it would be preferable to use an electric motor as I'm assuming it would be simpler to implement/setup and have lower maintenance/safety requirements etc...
I really would appreciate some help in getting this design started.
Thanks.