Numerical assessment of fatigue load capacity of cylindrical crane wheel using multiaxial high-cycle fatigue criteria

Romanowicz, Paweł

doi:10.1007/s00419-017-1281-6

Cited by 15 publications

(27 citation statements)

References 35 publications

(85 reference statements)

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“…Recent techniques and FE solvers also offer more advanced topology optimization techniques, the most interesting of which seems to be the stress-based [35] and fatigue damage-based [36] topology optimization methods. Such methods, with the simultaneous implementation of the recent multiaxial high-cycle fatigue criteria [37,38], are broadly applicable to the optimization and construction of structures which are subjected to both static and fatigue loads. In the performed analyses, the maximization of the structure stiffness was assumed as the objective function to the volume constraint.…”

Section: Topological Optimization Of the Stress Relief Groovementioning

confidence: 99%

Optimization of Flat Ends in Pressure Vessels

Szybiński

Romanowicz

2019

Materials

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The application of flat ends in pressure boilers is inevitably associated with the presence of stress concentration, which is observed in the vicinity of the junction of the cylinder and the closing flat plate. The analyzed flat end plates with stress relief grooves fall into the group of solutions recognized by the respective Standards of Calculations of Pressure Vessels. Unfortunately, no clear evidence is given in the Standards on how to choose the best groove parameters. This opens up the problem of the optimal choice of the groove parameters providing a minimum stress level. Even for the optimal values defining the stress relief groove geometry, certain plastic deformations are observed in the groove area for materials which exhibit elastic-plastic properties. Such a situation is completely unacceptable during exploitation, and a suitable reduction of the operating pressure is necessary. This paper discusses the effectiveness of other designs for flat ends used in pressure vessels. The proposed modifications took the form of external ribs applied around the top of the endplate circumference. The dimensions of these ribs were set using parametric optimization. The results of the study encouraged the authors to perform a more general analysis with the use of topology optimization. The results of all performed studies proved that the reduction of stress concentration and the full elimination of plastic deformation are possible. All numerical calculations were made using the finite element code (FEM), Ansys.

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Section: Topological Optimization Of the Stress Relief Groovementioning

confidence: 99%

Optimization of Flat Ends in Pressure Vessels

Szybiński

Romanowicz

2019

Materials

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“…Romanowicz and Szybiński delivered analytical formulas in [8] for determining stresses in the contact area and proposed a methodology for fatigue life assessment of rolling bearings by applying the multiaxial high-cycle fatigue hypothesis. In [9], Romanowicz presented a numerical evaluation of the fatigue load capacity of the cylindrical crane wheel. The application of multiaxial high-cycle fatigue criteria for analyzing the subsurface rolling contact fatigue of structures working in contact conditions was discussed.…”

Section: Introductionmentioning

confidence: 99%

Testing and Fatigue Life Assessment of Timber Truck Stanchions

Lisowski

2020

Applied Sciences

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Components of transport trucks are subjected to dynamic cyclic loads. The magnitude of these loads depends on road conditions and cargo mass. Cyclic loads can cause fatigue failure at stress levels significantly below the yield strength of the material. When calculating fatigue, it is necessary to determine the actual loads acting on the structure under working conditions. In this study, stanchion displacements of overloaded timber trucks were measured under both static and dynamic loads. For the specified mass of timber, a history of dynamic loads acting on the stanchion was obtained. Then, based on the finite element analysis, stress concentration points were determined within the base material and welded joints of the stanchion. The history of maximum stresses at concentration points was determined. Stress ranges and mean stresses for the load history were calculated using the rainflow fatigue cycle counting method. Repeats to failure were determined on the basis of the Palmgren–Miner cumulative damage rule and the modified Goodman correction for the points with the highest stress level. Experimental investigation of the actual load history of the stanchion of significantly overloaded timber truck allowed to determine the mileage to potential failure.

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“…It turns the crawler and the walking bracket into the chassis with the tire and overcomes the defects of the crawler's crawler board on the pavement. In the engineering application, the crane has the characteristics of complicated structure, poor working environment, large working load and large vibration [2], which cause the crane transmission system to malfunction. In order to improve the comfort of crane drivers during driving and extend service life of parts of crane transmission system, it is of great significance to study the torsional vibration mechanism and the calculation method of crane transmission system [3,4].…”

Section: Introductionmentioning

confidence: 99%

Study on torsional vibration of RT60 crane transmission system

Xiao

Zhou

2020

Mechanics & Industry

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In the process of engineering use, the elastic coupling of the RT60 crane transmission system has a large noise and even breaks down sometimes. In this paper, RT60 crane transmission system is the research object. A finite element model and a discrete model for torsional vibration of transmission system are established by finite element method and lumped parameter method. Through the study of the finite element model and the vibration test of transmission system, the correctness of the system model, equivalent parameter, calculation method and MATLAB program are verified. Because of the high efficiency of the torsional vibration discrete system, the discrete model is used in this paper to replace the finite element model. The free vibration and response vibration of the crane transmission system are calculated and analyzed, and the reasons for the existence of the system noise are explained in the starting stage. Through the study of the vibration theory and the matching method of the elastic coupling, the CX-45-VFA-60-11 elastic coupling is proposed to replace the CX-45-VFA-11 elastic coupling. In this paper, the data signal is collected by the hall gear sensor, and the data are analyzed by the self-developed vibration tester. The vibration amplitude of the torsional vibration of the crane transmission system is greatly reduced by testing the transmission system of the replacement of the elastic coupling. This paper provides a theoretical guiding significance for the low noise design of the crane transmission system.

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Numerical assessment of fatigue load capacity of cylindrical crane wheel using multiaxial high-cycle fatigue criteria

Cited by 15 publications

References 35 publications

Optimization of Flat Ends in Pressure Vessels

Optimization of Flat Ends in Pressure Vessels

Testing and Fatigue Life Assessment of Timber Truck Stanchions

Study on torsional vibration of RT60 crane transmission system

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