2012年5月22日 · As described above, the most notable characteristic of resonance is increased vibration when a certain operating speed is reached. Also, as the operating speed is increased …

2011年12月17日 · You are probably wondering what the heck this has to do with pumps. It turns out that resonant frequency is the common thread (or string in this case). Resonance in a …

2017年3月1日 · Structural vibration can be a problem with most machines, particularly with vertical turbine pumps. These pumps are commonly suspended from the discharge elbow with …

2017年12月6日 · Resonance can be a serious problem for new or modified pump installations. Pump resonance issues are best avoided before purchase with appropriate engineering, …

2022年6月6日 · With proper analysis, resonant vibration problems inherent to a drivetrain design can be resolved. Blake Bailey is president of designmotors. He may be reached at …

2011年12月17日 · VFDs. As mentioned earlier, VFD and motor applications may exhibit multiple resonant frequencies. The solution for mechanical resonance problems in most of these cases …

2020年2月25日 · Image 2 illustrates a Bode plot, which is a tool used by analysts to evaluate if a forced vibration will interact with a natural frequency. This plots both forcing frequencies and …

2012年3月9日 · Mechanical resonance is the tendency of a mechanical system to absorb more energy when the frequency of its oscillations (external excitation source) matches the system's …

2023年3月2日 · Vibration problems in vertical pumps can be challenging to diagnose and resolve. Not only are the long, cantilevered column and bowl assemblies more susceptible to resonant …

2011年12月17日 · When analyzing vibration data, an FFT vibration spectrum may be broken down into several frequency ranges to help determine the machine problem. Commercially …