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Forums
Engineering
Mechanical Engineering
Using a timing belt for a Dynamometer
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[QUOTE="robs314, post: 3195443, member: 228699"] Hello, I was wondering if someone could help me understand this situation. I am designing a motor/generator dynamometer, which is to be arranged as shown in the attached picture. There is a fixed high power DC motor transmitting power via a Syncronous / Timing belt to a motor which is under test. The Motor Under Test is on a pivoted plate above it, so the reactionary torque produced by the rotating plate should be measurable with a load cell. I have come across plenty of material on driving-driven pairs of pulleys, but none on driven-driven arrangements. [I]Firstly[/I], I want to make sure that my free body diagrams show the forces ( and reaction forces on the frame) going in the right directions. [I]Secondly[/I], I want to be clear about what is the 'worst case' and normal operation for the belt design and maximum allowable stress in the shafts. For this, I want to be sure of the [B]conditions which would provide the biggest load [/B]to the belt and shafts. If anyone can offer me any help, I would be grateful. Once I'm able to specify the belt and shaft dimensions, I can work backwards from that and evaluate torsions etc in the frame, which I am prepared for. However, it's just a stumbling block until I get my head round it. Many thanks [/QUOTE]
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Forums
Engineering
Mechanical Engineering
Using a timing belt for a Dynamometer
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