Hi, just checking with the community if anyone has any experience with random crosshead vibration for recip compressor.
It's a two stage machine, however the first stage crosshead vibration will randomly spike above 20m/s^2 then come back down again.
It's just been overhauled last year but the issue started once startup.
There seems no correlation with other process trend. Rule out mechanical issue as well as it is random and not constantly high. However the machine does run at conditions different from design, and simulation show the rod load is different on both sides. I am suspecting the deviation of operating condition from design condition causes unbalance thus high vibration but again, it is random and kind of defeat my suspicion.
It's a two stage machine, however the first stage crosshead vibration will randomly spike above 20m/s^2 then come back down again.
It's just been overhauled last year but the issue started once startup.
There seems no correlation with other process trend. Rule out mechanical issue as well as it is random and not constantly high. However the machine does run at conditions different from design, and simulation show the rod load is different on both sides. I am suspecting the deviation of operating condition from design condition causes unbalance thus high vibration but again, it is random and kind of defeat my suspicion.