Machinery Fault Simulator Kits , MFS by SpectraQuest

Machinery Fault Simulator Lite Option Kits

The Machinery Fault Simulator Lite (MFS Lite) provides you with a basic setup for performing rotor dynamics experiments and learning vibration signatures of different machine malfunctions. However, a detailed investigation of a particular phenomenon requires additional attachments and fixtures. At SpectraQuest we have thought carefully about various applications of the MFS system. This brochure describes several Option Kits to be used with an MFS for performing different in-depth studies. Each Option Kit provides you with a wealth of information to increase your knowledge of rotor dynamics and machinery fault diagnostics. It is important to note that the MFS is versatile and can be configured in many more ways than those associated with the Option Kits

Training Curriculum Manual Learn machinery conditioning monitoring and vibration basics through upper intermediate level. Use prescribed laboratory exercises specifically prepared for the MFS to enhance learning through hands-on experience. Use as a basis for accelerated course preparation and the development of vibration training programs. The SpectraQuest machinery vibration-training manual consists of two volumes. Volume 1 contains textbook or basic classroom training in the fundamentals of classic machinery vibration, transducers, monitoring, signal processing, analysis, etc. from beginner to upper intermediate levels. It is both hands-on and mathematically oriented, being appropriate for both technicians and engineers. Volume 2 contains laboratory exercises to be conducted on the MFS to provide a truly experimental learning environment.
Eccentric Rotor Learn the effects of rotor eccentricity on vibration spectra. Determine relationships between eccentricity and unbalance. Develop techniques to locate and correct the effects of eccentricity. Learn the effect of varying the mass moment of inertia on vibration amplitude. The kit consists of one aluminum rotor with an asymmetrically located center bore and one clamp collar
Cocked Rotor Learn the effects of a sheave that has not been fitted to the shaft properly. Learn vibration signature of a cocked rotor. Develop methods to correct cocked rotor problems. Learn the effect of varying the mass moment of inertia on vibration amplitude. The kit consists of a cocked aluminum rotor and one clamp collar.
Shaft Coupling Kit Learn the effects of coupling stiffness on rotor dynamics and vibration signature of various defects. Clarify the complexities of machinery shaft misalignment problems. The spectral pattern for shaft misalignment is a strong function of coupling stiffness. Each kit consists of one gear, one LoveJoy with two inserts, one rubber, and one rigid steel coupling.
Centrally Bent Shaft Demonstrate the signature of a bent shaft. Observe the difficulty associated with attempting to balance a rotor with a bent shaft.
Coupling End Bent Shaft The coupling end bent shaft reveals a complicated vibration signature due to gyroscopic effects. Observe the difficulty associated with attempting to balance an overhung rotor with a bent shaft. Become familiar with the alignment issues due to a bent shaft.
Resonance Study Kit Designed for in-depth study of resonance and critical speed phenomena. Critical speeds below 2000 RPM simulate real world operating conditions and improve safety. Relocate rotors and supports to study the effects of mass and stiffness on resonance frequencies and mode shapes. Study damaging effects of resonance and develop control methods. Study beating due to closely spaced modes. Study non-linear dynamics for chaos modeling. The standard shaft system is designed for controlled experiments. It has a high resonance frequency, (7,000 RPM or more, depending on rotor positions), which is too high for safe resonance study. The resonance kit contains: one special shaft, three rotors, two rolling element bearings, and one coupling.
Bearing Fault Kit Deliberately faulted bearings to learn waveform and spectra of classic bearing defects. Learn about signal processing issues such as averaging techniques, leakage, and spectral resolution on determining bearing faults. Perform experiments while increasing the severity of defects. Determine why ultra-high resolution spectrum is needed to diagnose a bearing fault when fault frequencies are located close to multiples of RPM. Learn how a large signal can mask adjoining low amplitude signals due to spectral leakage. The kit contains: one inner race defect, one outer race defect, one with ball defect, and one combination of defects. The fault frequencies are very close to the multiples of shaft RPM.
Cocked Bearing Kit Due to improper seating, bearings are sometimes not installed uniformly in the cavity, creating a cocked situation. Recognizing the signature of a cocked bearing is beneficial in that corrective action can be taken long before failure occurs. The kits consists of one bearing housing designed to exhibit this condition.
1" Diameter Shaft Bearing Fault Signature Study Kit This system is designed to exhibit bearing fault frequencies further away from multiples of the shaft rotational speed (RPM). The standard MFS bearings (typical of many bearings) exhibit fault frequencies close to multiples of shaft RPM requiring ultra high-resolution spectra to clearly identify bearing fault frequencies. This kit is essential for a more complete study of rolling element bearing faults because real world applications include both types of bearings, one with fault frequencies close to multiples of RPM and one with fault frequencies away from the multiples of rotational speed. Identify bearing fault frequencies in the presence of defects at multiples of shaft RPM without using high resolution spectra. Understand signal processing issues such as averaging, spectral resolution and leakage phenomena. Perform experiments while increasing the severity of defects. The kit includes two precision-machined split bearing housings, two 1" diameter ID bearings, one 1" diameter shaft, and one coupling.
1" Diameter Shaft Faulted Bearings Kit The kit provides deliberately faulted bearings to learn waveform and spectra of classic bearing defects when bearing fault frequencies are not close to multiples of the shaft running speed (RPM). The kit includes four faulted bearings: one outer race, one ball, one inner race, and one combination defect.
1" Diameter Shaft Bearing Loader Demonstrate how rotor loading affects bearing vibration amplitude. Location can be adjusted axially. A radial load on bearings shows the effects of loading and enhances the spectral amplitude.
Sleeve Bearing Kit Waveform and spectral recognition of worn or loose fitting bearings. Fits the standard rotor shaft with grease lubricated, babbitt lined, sleeve bearings. Bearings are split so that plastic shims may be used to open the clearance to simulate increased looseness. Shaft orbital analysis. The kit consists of two customized pillow block sleeve bearings, two bearing pedestals, and mounting hardware.
Mechanical Rub Kit This kit permits the evaluation of typical rub phenomena associated with a variety of materials under different angle, loading, and lubricant conditions. Experiments can be performed on the shaft or rotor. Easy to install different materials for rubbing experiments. The kit consists of an adjustable tool holder for the rub material, a vertical post, a horizontal bar, and clamping mechanism.
Damped Bearing Housing Kit This kit provides a bearing housing with a higher damping factor than the standard housing. Typical rolling element bearing systems are an all-metal structure with virtually no damping. This item will enable you to add damping to a standard rolling element bearing housing. The amplitude of the resonance of a structure (or critical speed of rotors) is primarily controlled by its damping. A typical rotor resonance amplitude tends to be high, creating violent vibration. This kit can be used to demonstrate the reduction in rotor resonance amplitude due to the installation of damping. This approach can be used in real life situations where the other common techniques such as mass and/or stiffness variation cannot be applied or is cost prohibitive. In many situations, damping is the most cost effective and appropriate means to attenuate resonant vibration. SpectraQuest has unique expertise in damping technology. The kit consists of two special bearing housings and two �" bearings fitted with isolators.
PC Motor Control Kit Operate MFS from remote location. Preprogram speed acceleration, deceleration, and length of run to meet exact requirements. This kit permits speed control of the MFS through a personal computer. The user enters the essential data in a user-friendly program resident on the PC. The PC is connected to an interface module that communicates through an external port on the inverter drive. The kit consists of PC software, one interface module, and cables.
Force Transducer Measure forces exerted on bearings due to coupling misalignment, rotor unbalance, belt misalignment, belt tension Demonstrate how mass unbalance force quadruples when the speed is doubled, but vibration amplitude does not follow the same trend Establish quantitative tensions for drive belt studies Learn to relate the vibration signature to forces associated with common malfunctions such as resonance, bearing faults, and more Witness 180 degree phase shift between heavy and high spots when rotor goes through a critical speed Verify and refine your rotor dynamic models and enhance modeling skills Learn phase relationship between force and vibration spectrum Learn nature of rotor dynamic forces due to common defects There are three options available depending on the customer requirements: Vertical force transducer for 5/8� and �� diameter shaft Horizontal force transducer for 5/8� and �� shaft Combined horizontal and vertical force transducer for 5/8� and �� diameter shaft The kit consists of one appropriate force transducer with cables and one matching signal conditioner and power supply.