Low-FrequencyVibrationTestingofHugeBucketWheel
experimental dynamic characteristics of the bucket wheel excavator in terms of the operational conditions," FME Transactions,vol.41,pp.298–304,2013. [11]E. Rusinski, S. Dragan, P. Moczko, and D. Pietrusiak, "Implementation of experimental method of determining modal characteristics of surface mining machinery in the
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TEORIJSKA I EKSPERIMENTALNA ANALIZA ZAVARENE …
manufacturing technology, design solution, and fracture surface of supporting structure of satellite planetary gear used in driving the wheel of bucket excavator type SRs 1300.26/5.0 +VR±10). Research was aimed to establish the cause of fracture of satellite support, followed by catastro-phic failure of gear box and working wheel. UVOD
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Caterpillar drive shaft damage causes analysis
A case of a damage of a driving shaft of an undercarriage of a multi-bucket excavator is the subject of work [8]. Based on a numerical analysis and measurement's results it …
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Srđan Bošnjak | University of Belgrade, Faculty of
The paper presents the procedures for determining external loads caused by resistance-to-excavation (for bucket wheel excavators) or grabbing soil (for bridge-type coal stacker-reclaimers), as well as a short description of the model upon which is based and defined the response of the stacker-reclaimer to the external changeable load.
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Capture of Large Objects by the Earthmoving Machine's
Jan 31, 2020 · The technical result of the proposed solution is to improve the efficiency of the hydraulic excavator with a hydraulic jaw through coordinated synchronous control of moving parts of working equipment (bucket and jaw), reliable fixation of the moment of transition from one mode of operation of the equipment to another and further coordinated
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ScienceDirect
Bucket wheel excavator damage by fatigue fracture – case study. Darko Danicic 1, Stojan Sedmak 2, Dragan Ignjatovic3 Slobodan Mitrovic 4. *. 1 University of Belgra de, Faculty of Technology and
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Low-FrequencyVibrationTestingofHugeBucketWheel
experimental dynamic characteristics of the bucket wheel excavator in terms of the operational conditions," FME Transactions,vol.41,pp.298–304,2013. [11]E. Rusinski, S. Dragan, P. Moczko, and D. Pietrusiak, "Implementation of experimental method of determining modal characteristics of surface mining machinery in the
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Liming.pdf - Article citation info Pietrusiak D
Apr 07, 2017 · Bucket wheel excavator; 11 pages. which is manifested in an increasing number of fatigue cracks. Fig 1 shows an example of a fracture and its location. Such faults are difficult to spot and if the fracture is located in a critical area, it can grow uncontrollably and lead to a catastrophic failure.
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DETERMINATION OF LOAD SPECTRUM OF BUCKET WHEEL …
DETERMINATION OF LOAD SPECTRUM OF BUCKET WHEEL EXCAVATOR SRS 1300 IN COAL STRIP effect of, for example, variable strain with sufficient intensity and duration can damage some vital parts of the MS and failures of the MS can occur. static or violent fractures, dynamic fracture caused by fatigue, increased wear, corrosion, overheating etc
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Bucket Wheel Excavator Damage by Fatigue Fracture – …
Failure of the bucket wheel excavator buckets - ScienceDirect
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Numerical analysis of fatigue for the assessment of
3 Numerical analysis of fatigue for the assessment of remaining service life of the ERc 1400-30/7 bucket wheel excavator and analyses of complex dynamic loads carried out on a SchRs 650/5 × 24 Krupp bucket-wheel excavator are presented, as well as the assessment of the service life of vital welded structures of a bucket-wheel excavator
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Managing Risk In An Era Of Developing Knowledge
Nov 20, 2008 · Essentially, the repairs involved welding extra stiffeners to the machine - and were designed in accordance with the German standard for design of 'large machines in open cut mines' (BG60), which included bucket wheel excavators. In March 2000, the bucket wheel excavator collapsed due to fatigue fracture in its central tower.
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Analysis of the Causes of Fatigue Cracks in the Carrying
Mar 10, 2019 · In order to determine the damage of the carrying structure of the bucket-wheel excavator, non-destructive examinations were carried out using visual and magnetic-particle methods. The real loads occurring during operation of the machine in the case of fatigue were also determined. These measurements were used to verify the numerical model.
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Bucket Wheel Excavator Damage by Fatigue Fracture – Case …
2. Failure of Bucket Wheel Excavator BWE SchRs 1760, unexpectedly and with no warning catastrophically failed in 2004, after 17 years of regular service, on an open surface mine in Serbia (Fig. 1). Fatigue fracture, initiated in welded joint and developed in lugs of counterweight holder (Fig. 2), followed by final fast fracture, had been the cause.
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Structural integrity assessment for a component of the
May 13, 2014 · Purpose – The purpose of this paper is to present a methodology for assessing the structural integrity of a tie member from a bucket‐wheel excavator, ESRC 470 model, which was in operation for about 20 years. The tie member is made of S355J2N structural steel. Following the period of operation, the occurrence of microcracks which can propagate by …
Get a quoteFatigue life analysis of crawler chain link of excavator
Sep 01, 2017 · Fatigue life analysis of crawler chain link of excavator. Abstract In this study, the tension of crawler chain link of excavator is measured by experimenting in horizontal straight, pivot steering, and differential steering conditions. A virtual prototype model of excavator is established and its accuracy is verified on the basis of comparing
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(PDF) Failure Analysis of the Tower Crane Counterjib
[7] Bosnjak S, Petkovic Z, Zrnic N, Pantelic M, Obradovic A. Failure analysis and redesign of the bucket wheel excavator two-wheel bogie. Eng Fail Anal 2010; 17:473-85. [8] Bosnjak S, Zrnic N, Gnjatovic N, Dordevic M. Failure analysis and reconstruction design of the slewing platform mantle of the bucket wheel excavator O&K SchRs 630.
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