setting of springs
setting of springs
(OP)
hey, i am working on VHCF behavior of springs,and i wanna know that why exactly the spring has to be given a set?
my springs were set by the manufacturer and thus it should not have change in length after compressing but it had a change after compression ???
i cannot think as the spring is given elastic strain why it is taking a permanent displacement/strain???
my springs were set by the manufacturer and thus it should not have change in length after compressing but it had a change after compression ???
i cannot think as the spring is given elastic strain why it is taking a permanent displacement/strain???





RE: setting of springs
Voluntary Human Care Foundation?
...
... If you meant Very High Cycle Fatigue, ask your librarian to fetch this:
http://iopscience.iop.org/1742-6596/240/1/012040
Mike Halloran
Pembroke Pines, FL, USA
RE: setting of springs
RE: setting of springs
provider of spring has done solid compression( not exactly but has compressed to 12mm ( to get a free length of 37mm apprx) well should not give these details here.
he compressed it thrice i guess, but what i know is that for different springs of diff spring rate, should be compressed at diff lengths while setting.
problem is in the test, when we r giving displacement, the actual displacement is changing because of loss in length and my team discussed and still thinking on it but i want to know that why this happens. i mean u r giving elastic deformation so it sud get recovered but why?
RE: setting of springs
Preset operation as a mean to adjust the free length is a wrong approach and is not a real preset process. Preset process is used to induce favorable compression stresses in the spring wire so higher loads can be achieved from a thinner wire diameter.
If your spring length is changed after load then the stresses are probably too high for the spring wire and the spring needs to be re-designed.
With proper design the spring free length is not important. The proper definition is to define load/s at compressed length/es.
Please provide more info regarding the type of loads, cyclic, static, load for short time or for long periods.
RE: setting of springs
RE: setting of springs