Failure analysis of driveshaft of truck body caused by vibrations

Grega, Robert; Krajňák, Jozef; Žuľová, Lucia; Fedorko, Gabriel; Molnár, Vieroslav

doi:10.1016/j.engfailanal.2017.04.023

Cited by 42 publications

(36 citation statements)

References 15 publications

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“…The workpiece undergoes a local high-frequency thermal impact when cutting with a wheel grain, which determines the instantaneous grinding temperature. This is clearly confirmed by the results of the researches [4,13]. 3.…”

Section: Methodology Of Researchsupporting

confidence: 77%

Workpiece Temperature Variations During Flat Peripheral Grinding

Смирнов

Repko

2018

Management Systems in Production Engineering

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Abstract:The paper presents the results of researches of temperature variations during flat peripheral grinding. It is shown that the temperature variations of the workpiece can reach 25...30% of the average values, which can lead to some thermal defects. A nonlinear two-dimensional thermophysical grinding model is suggested. It takes into account local changes in the cutting conditions: the fluctuation of the cut layer and the cutting force, the thermal impact of the cutting grains, and the presence of surface cavities in the intermittent wheel. For the numerical solution of the problem, the method of finite differences is adapted. Researches of the method stability and convergence are made, taking into account the specific nature of the problem. A high accuracy of the approximation of the boundary conditions and the nonlinear heat equation is provided. An experimental verification of the proposed thermophysical model was carried out with the use of installation for simultaneous measurement of the grinding force and temperature. It is shown that the discrepancy between the theoretical and experimental values of the grinding temperature does not exceed 5%. The proposed thermophysical model makes it possible to predict with high accuracy the temperature variations during grinding by the wheel periphery.

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Section: Methodology Of Researchsupporting

confidence: 77%

Workpiece Temperature Variations During Flat Peripheral Grinding

Смирнов

Repko

2018

Management Systems in Production Engineering

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“…The important condition to apply the strategies of predictive M&R of mechatronic systems effectively is ensuring the high level of the operation and repair manufacturability [20]. The main features of the operation and repair manufacturability are: controllability, accessibility, quickdetachability, interchangeability and repairability.…”

Section: Predictive Repair Of Equipmentmentioning

confidence: 99%

“…According to the known distribution law and the limiting probability, the values of gamma percentile t γi error-free running hours (until the failure) are calculated to characterize indirectly the technical state (Figure 6a) and the recovery time of each component part. The least value of the running hours is chosen among the whole range, and multiplicities of running hours are calculated according to the formula: (20) where t γi is the gamma percentile running hours of the i th element; t γ min is the minimum gamma percentile running hours; К' is the design multiplicity of running hours of the i th element; n is the number of elements in the system. The design value of multiplicity of gamma percentile running hours is rounded down to the least one, based on the operation experience, reducing the probability of failure (degree of risk).…”

Section: Developing the Adaptive Structure Of The Repair Cyclementioning

confidence: 99%

Reliability Determination and Diagnostics of a Mechatronic System

Turygin¹,

Božek²,

Abaramov³

et al. 2018

Adv. Sci. Technol. Res. J.

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In order to reduce the number and time of layups and to increase the period of effective operation of a mechatronic system it is reasonable to carry out predictive recovery works during one stoppage (repair) for a group of component parts with equal, close or multiple operation hours to the prior-to-failure (limiting) state. Such approach gives also the possibility to carry out recovery works with separate elements in parallel, which allows to reduce the system layup time and to increase the production output.

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“…which was further analysed. The finite element method is especially used in the ground vehicle industry [4,5,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of stiffener for hybrid drive unite

2018

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Abstract. The matter of this article is a stress-strain analysis of hybrid drive prototype unit connected directly to convention Concrete Transit Mixer Gearbox. The unite was developed with intention to do field test on existing convection machines with possibility to use existing interfaces. The hybrid drive unit consists from electric and hydrostatic motor connected through addition mechanical transmission gearbox. The question is if today standard interface is good enough or need additional support a "stiffener". Two engineering design were analysed. The first one includes using the stiffener to fixate the construction of hybrid drive unite connected to the planetary gear. The second one is without the stiffener. For strain-stress analysis, a finite element software ANSYS Workbench was used.

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Failure analysis of driveshaft of truck body caused by vibrations

Cited by 42 publications

References 15 publications

Workpiece Temperature Variations During Flat Peripheral Grinding

Workpiece Temperature Variations During Flat Peripheral Grinding

Reliability Determination and Diagnostics of a Mechatronic System

Numerical analysis of stiffener for hybrid drive unite

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