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  • (PDF) Condition Monitoring of Low Speed Slewing

    Slewing bearing condition monitoring is a good method to identify the inception and propagation of structural defects at an early stage for timely remedy, and ultimately, enable condition-based ...

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  • Failure Prediction, Monitoring and Diagnosis Methods

    2016-5-26 · The method is especially suitable for coping with (1) complex large-scale and (2) wide dynamic range slewing bearing systems, which (3) can run under highly changeable operating and environment conditions, thanks to the method׳s (1) multivariate, (2) multiscale and (3) reference-free approach, respectively.

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  • EEMD-based multiscale ICA method for slewing

    To ensure the service life of slewing bearings, an accurate fatigue life estimation in the design stage is essential. This paper presents a method of testing the fatigue life using a small sample ...

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  • Fatigue life analysis of slewing bearings in wind

    2018-6-1 · Slewing bearings are important components of wind turbines and composed of a yaw bearing and a pitch bearing. They have driving teeth in the inner or outer ring that drive the pinion gear and transmit torque to achieve the wind turbine yaw and pitch movement, as shown in Fig. 1.The common yaw bearing is a four-point contact ball slewing bearing with a zero cross-section gap or microsection …

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  • Fatigue life analysis of slewing bearings in wind

    The method of determining the profile curves of static carrying capacity for twin slewing bearing, including all components of the load was described fully. View Show abstract

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  • (PDF) Screw behavior in large diameter slewing

    2021-2-1 · Modern WTGS bearings can be divided into two types: drivetrain bearings and adjustment slewing bearings , , , as shown in Fig. 1.Drivetrain bearings can be spherical-, cylindrical- or tapered roller types , , , and generator bearings use coated bearing (ceramic and conductive microfibers) and hybrid bearings .Structures of slewing bearings in wind power industry are more complicated than ...

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  • Study of a Bolted and Screwed Joint of a Slewing

    2012-2-24 · Because the method was derived from a widely accepted theory and empirical standards, it can be used for engineering applications. Finally, the RCF reliability of a slewing bearing under complex operating conditions was determined using the developed method.

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  • A dynamic structure-adaptive symbolic approach for

    2020-6-23 · Žvokelj, M, Zupan, S, Prebil, I. EEMD-based multiscale ICA method for slewing bearing fault detection and diagnosis. ... Prognostics and health management design for rotary machinery systems—reviews, methodology and applications. Mech Syst Signal Proc 2014; 42: ...

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  • Condition monitoring of naturally damaged slow

    2013-8-1 · Using the decomposition technique in EMD and EEMD method, the attenuated signal was appeared after high frequencies components were decomposed and removed. 3.2 Bridge reclaimer data The slewing bearing was mounted in a coal bridge reclaimer in the vertical plane.

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  • Multiple physical signals based residual life prediction ...

    Critical failure of a slewing bearing used in large machines would entail high costs to an enterprise. Designing the condition monitoring system to diagnose the failure or predict the residual life of the slewing bearing is a practical and effective method to reduce unexpected stoppage or optimize the maintenances. Many literatures mentioned the life prediction of small typical rolling ...

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  • Research on Real Working Condition Simulation and ...

    The slewing bearing test bench developed by the LGMT ... Analysis of mechanical model of wind power bearing: Using the relevant analysis method of the space force system in engineering mechanics, the center load of the hub is converted to the reference plane of the tested bearing, and the force system conversion mathematical model is ...

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  • A Clustering-Based Framework for Performance

    2019-4-15 · Diagnosing the failure or predicting the performance state of low-speed and heavy-load slewing bearings is a practical and effective method to reduce unexpected stoppage or optimize the maintenances. Many literatures focus on the performance prediction of small rolling bearings, while studies on slewing bearings' health evaluation are very rare.

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  • ©Kaydon Bearings Slewing Ring Bearings Section 3 ...

    2019-6-6 · The face of the structure that supports the bearing must make contact with the complete mounting face of the bearing's ring and have surface finish 250 AA or better. Obtaining a uniform distribution of the load to the bearing is difficult when using a frame, welded structure, and gussets for structural support under the mating plate.

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  • Xuzhou Aosen Slewing Bearings Co., Ltd.. Supplier

    To ensure the long-life durability, VHB pot bearing is protected against corrosion by the following methods two-component epoxy coat, PU-based painting (Polyurethane), hot dip galvanization according to ASTM A123 standards and especially the Al Mg spraying method (at the ratio of 5% Al and 95% Mg) which ensures the anti-corrosion durability of ...

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  • PAPER OPEN ACCESS Exploring the distribution of time to ...

    using the method of moments (London) [8]. Using exponential and linear assumption, the bearing failure degradation as function of unit failure probability is shown in table 3. The plot degradation h(t) are shown in figure 3. As expected, the bearing degradation increases as the time t increases. The plot can

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  • Industrial Robot/Research Development - Open

    2021-3-13 · Relevant Links. Basic Overview of Electric Industrial Robot. Conceptual Notes. Foundation - is the mount of the industrial robot that fastens to the ground and elevates the shoulder and hence the working envelope.; Shoulder - is the base of the industrial robot that rests on top of the foundation and contains axis 1 and 2.; Arm - is the connecting frame between the shoulder and the elbow.

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  • Iglide PRT-01-150 Slewing Ring Bearing, 150 mm,

    Iglide PRT-01-150 Slewing Ring Bearing, 150 mm, Grey/Yellow: Amazon.com: Industrial & Scientific

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  • Fault diagnosis of EMU rolling bearing based on

    2018-5-23 · Rolling bearing is an important and fragile component in the EMU. To give a safe condition assessment of rolling bearing, especially for early fault diagnosis, is very …

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  • Journal of Mechanical Science and Technology | Home

    2021-4-24 · Journal of Mechanical Science and Technology (JMST) is an official monthly International transaction of the Korean Society of Mechanical Engineers (KSME). The ...

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  • The Basics - How Bearings Work | HowStuffWorks

    The concept behind a bearing is very simple: Things roll better than they slide. The wheels on your car are like big bearings. If you had something like skis instead of wheels, your car would be a lot more difficult to push down the road. That is because when things slide, the friction between them causes a force that tends to slow them down ...

    Get Price
  • Drilling methods for deep foundation - Liebherr

    Drilling methods for deep foundations. The most common drilling methods in deep foundation are Kelly drilling, continuous flight auger drilling, full displacement drilling, double rotary drilling, drilling with hammer grab, reverse circulation air injection drilling and down-the-hole drilling.

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  • Applied Mechanics and Materials Vols. 256-259 | p. 12 ...

    Abstract: This paper analyzed the causes of the bolt failure problem of pendulum for different working conditions using the finite element method. The simulation shows that the bolt fracture is due to relaxation caused by bolt slewing bearing and a flange partial slip on .The cause of the failure was the structure design lacking of effective ...

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  • Types of Bearings - How Bearings Work |

    In a ball bearing, the load is transmitted from the outer race to the ball, and from the ball to the inner race. Since the ball is a sphere, it only contacts the inner and outer race at a very small point, which helps it spin very smoothly.But it also means that there is not very much contact area holding that load, so if the bearing is overloaded, the balls can deform or squish, ruining the ...

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  • REVIEWS ON ADVANCED MATERIALS SCIENCE

    Topical Issues 2019: Special Issue on the FUTURE MATERIALS 2020, Materials Science & Nanotechnology Conference - February 26-28 2020, Lisbon, Portugal The honored speakers of the meeting are Prof. Ada E. Yonath (Nobel Laureate 2009) and Prof. Michael Kosterlitz (Nobel Laureate 2016). Guest Editors: Leonard Deepak Francis , International Iberian Nanotechnology Laboratory, …

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  • Which Bolting Solution Should You Use? A

    2017-10-4 · The codes for heat exchanger designs allows Engineers to minimise flange geometry. This saves initial costs but leads to high failure rates. High multitudes (36-84..) of small diameter bolts complies and has adequate strength but leads to very high interactional pre-load losses when they are tightened, consequently they regularly leak.

    Get Price
  • iOptron CEM 60 equatorial mount review - Mounts -

    2016-4-27 · The second method, called ‘BrightStar’, doesn’t require a view of Polaris – it is an iterative process requiring one star at high altitude and another near the horizon. The azimuth adjustment, using two posts and bolts on either side of the mount, was simply a joy to use.

    Get Price
  • Iglide PRT-01-150 Slewing Ring Bearing, 150 mm,

    Iglide PRT-01-150 Slewing Ring Bearing, 150 mm, Grey/Yellow: Amazon.com: Industrial & Scientific

    Get Price
  • Journal of Mechanical Science and Technology | Home

    2021-4-24 · Journal of Mechanical Science and Technology (JMST) is an official monthly International transaction of the Korean Society of Mechanical Engineers (KSME). The ...

    Get Price
  • The Basics - How Bearings Work | HowStuffWorks

    The concept behind a bearing is very simple: Things roll better than they slide. The wheels on your car are like big bearings. If you had something like skis instead of wheels, your car would be a lot more difficult to push down the road. That is because when things slide, the friction between them causes a force that tends to slow them down ...

    Get Price
  • Applied Mechanics and Materials Vols. 256-259 | p. 12 ...

    Abstract: This paper analyzed the causes of the bolt failure problem of pendulum for different working conditions using the finite element method. The simulation shows that the bolt fracture is due to relaxation caused by bolt slewing bearing and a flange partial slip on .The cause of the failure was the structure design lacking of effective ...

    Get Price
  • Drilling methods for deep foundation - Liebherr

    Drilling methods for deep foundations. The most common drilling methods in deep foundation are Kelly drilling, continuous flight auger drilling, full displacement drilling, double rotary drilling, drilling with hammer grab, reverse circulation air injection drilling and down-the-hole drilling.

    Get Price
  • IOP Conference Series: Materials Science and

    2021-3-4 · The influence of model detail level on the prognosis quality is analyzed using the aforementioned method taking into account four exemplary variant calculations of the proposed model: (1) Power electronics harmonics vs. ideal sine electric machine current, (2) electric machine with vs. without production deviations, (3) modal damping parameters ...

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  • Welcome to SKF | SKF

    Welcome to SKF! We deliver Bearings and Units, Seals, Services and Lubrication management for industries worldwide.

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  • Process Monitoring Based on Independent

    2007-3-2 · Many of the current multivariate statistical process monitoring techniques (such as principal component analysis (PCA) or partial least squares (PLS)) do not utilize the non-Gaussian information of process data. This paper proposes a new monitoring method based on independent component analysis−principal component analysis (ICA−PCA). The Gaussian and non-Gaussian information can …

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  • iOptron CEM 60 equatorial mount review - Mounts -

    2016-4-27 · The second method, called ‘BrightStar’, doesn’t require a view of Polaris – it is an iterative process requiring one star at high altitude and another near the horizon. The azimuth adjustment, using two posts and bolts on either side of the mount, was simply a joy to use.

    Get Price
  • Iglide PRT-01-150 Slewing Ring Bearing, 150 mm,

    Iglide PRT-01-150 Slewing Ring Bearing, 150 mm, Grey/Yellow: Amazon.com: Industrial & Scientific

    Get Price
  • (4T) MTO-122T - KAYDON BEARING - 14741001 (Xfer)

    Kaydon MTO-065T Bearing Slewing Ring 4-Point Contact MTO-065T. 999.99. Free shipping . MTO-122T - KAYDON BEARING - 14741001 (Old Item) BEARING - FACTORY NEW! ... Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and ...

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  • How to Successfully Design a Maintenance-Free

    2020-4-6 · When using a metal bushing, you must use grease in order to keep the bearing pivot moving freely, and by doing this you are also protecting the shaft and housing from corrosion. However, there are downsides to this method.

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  • Services | SKF

    Shaft locking method . Sealing . Mounting, maintenance, and dismounting . Bill of materials . Ball bearing units . Pillow block ball bearing units . Flanged ball bearing units . Take-up ball bearing units . End covers . Rubber seating rings . Ball bearing units for agriculture applications . SKF Food Line ball bearing units . Ball bearing units ...

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  • MH-P22 ACB469 bicycle headset bearings - Bearing

    MH-P22 ACB469 bicycle headset bearings DETAILS Inner x Outer x Depth (mm): 34.1 x 46.9 x 7 Inch Dia: 1-1/4” Angle Chamfer (Deg): 45 45 Bearing ID: 34.1mm Bearing OD: 46.9mm Bearing Thickness: 7mm Internal Ang

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  • Types of Bearings - How Bearings Work |

    In a ball bearing, the load is transmitted from the outer race to the ball, and from the ball to the inner race. Since the ball is a sphere, it only contacts the inner and outer race at a very small point, which helps it spin very smoothly.But it also means that there is not very much contact area holding that load, so if the bearing is overloaded, the balls can deform or squish, ruining the ...

    Get Price
  • Which Bolting Solution Should You Use? A

    2017-10-4 · The codes for heat exchanger designs allows Engineers to minimise flange geometry. This saves initial costs but leads to high failure rates. High multitudes (36-84..) of small diameter bolts complies and has adequate strength but leads to very high interactional pre-load losses when they are tightened, consequently they regularly leak.

    Get Price
  • Inertially stabilized line-of-sight control system using

    2014-11-5 · Line of sight stabilization and control system is widely used in pointing and stabilizing the line of sight of optical sensors. Multi-axis gimbals configurations are commonly used for isolating disturbance from the angular motion of the base where the stabilization platform is mounted.

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  • A First Application of Independent Component

    2020-11-29 · In contrast, when using shocks derived from principal components instead of independent components, the reconstructed price is less similar to the original one. ICA is shown to be a potentially powerful method of analyzing and understanding driving mechanisms in financial time series.

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  • OEM UPDATE | Original equipment manufacturers

    Original equipment manufacturers update, leading industrial magazine in India. Stories on Automation technology, process industry, machine tools, Facility management, engineering reviews, plant management, production management, manufacturing update, …

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