Characteristics and investigation of selected manufacturing defects of passenger car tires

Weyssenhoff, Andrzej; Opala, Michał; Koziak, Seweryn; Melnik, Rafał

doi:10.1016/j.trpro.2019.07.020

Cited by 17 publications

(16 citation statements)

References 2 publications

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“…Further, efforts will be made to creating a virtual multibody model (MBS model) of the lorry chassis. It is possible to expand the MBS model using the presented FEM model of the frame [15,25,37], input dynamic loads to the structure and investigate its behaviour under these defined loads.…”

Section: Fig 2 a Three-dimensional Model Of The Analysed Framementioning

confidence: 99%

Strength analysis of an off-road lorry frame

Dižo¹,

Blatnický²,

Dróździel³

et al. 2021

SJSUT.ST

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The lorry frame is the main carrying part of a lorry, composed of several components. These components are connected by joints into one structural unit and it forms the lorry chassis. The contribution of this article is focused on the strength analyses of a backbone frame, which is used on an off-road lorry chassis. Strength analyses are carried out utilising the finite element method. This article presents a created three-dimensional model of the frame and definition of boundary conditions (loads, the definition of degrees of freedom) needed for simulation computations. Results of the numerical calculations are the main parts of this article. Attention is mainly centred on the distribution of stresses of the frame under defined loads and its deformations.

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Section: Fig 2 a Three-dimensional Model Of The Analysed Framementioning

confidence: 99%

Strength analysis of an off-road lorry frame

Dižo¹,

Blatnický²,

Dróździel³

et al. 2021

SJSUT.ST

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“…Based on described above, the proper operation of the shock absorbers is extremely important in terms of running properties of vehicles. In the opposite case, the insufficiently effective shocks absorbers or even damaged shock absorbers can cause a number of deficiencies [29][30][31], among others the following: • Time extension of vibration of individual bodies of a vehicle while running on track unevenness, • Excessive vibration of a vehicle body, when it runs on successive track unevenness, • Large deviations of a vehicle body at the improper frequencies generate excessive values of accelerations, which deteriorate the ride comfort for passengers [15,32], • Due to high amplitudes of vibrations, a wheel can lose the contact with a track, which means really dangerous situation in terms of the running safety, • It leads to the worsen effectiveness of braking and directional stability of a vehicle (a normal force is lower) and causes a danger of a skid mainly during running in curves [33].…”

Section: Introductionmentioning

confidence: 99%

Proposal of a Method for Detection of a Damaged Hydraulic Shock Absorber in a Vehicle's Suspension System

Gorbunov¹,

Dižo²,

Blatnický³

et al. 2022

Komunikácie

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In principle, every vehicle is equipped by a suspension system, which usually consists of springs and shock absorbers. The main purpose of the suspension system is to eliminate vibration of sprung and unsprung masses. Therefore, the proper operation conditions of the shock absorbers affect in a fundamental way total running properties of vehicles. However, during operation, shock absorbers are being worn out or they can even be damaged. Then, such a situation is unwanted and it has to be detected as soon as possible. The content of this article is focused on analysis of vehicles’ shock absorbers defects. Methods for detection of possible shock absorbers faults are presented. Further, a proposal of the method for detection of a state of a hydraulic shock absorber during its operation is presented. The method uses identification of the temperature change of a hydraulic shock absorber during operation.

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“…The friction and wear are two main tribological problems that occur in almost all industrial applications and are caused either by insufficient lubrication or dry operating conditions. Although most of these vehicles use wheels with tires to drive on roads and it has several advantages [15], there are also track vehicles, which use rubber tracks for driving. It is obvious that using rubber in the case of a military demining vehicle is not possible [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Applied Research of Applicability of High-Strength Steel for a Track of a Demining Machine in Term of Its Tribological Properties

Blatnický

Dižo

Sága

et al. 2021

Metals

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Even today, there are countries that are affected by war and its pitfalls. The authors have decided to present a part of the accompanying research results in this article. This research precedes the design of a demining machine Božena 5. The main goal of the authors’ activities was to design optimal material and geometry for a track of this machine. To achieve this goal, the authors conducted research to evaluate the microstructure of the material S960QL and its tribological lifetime. As the track of the demining machine is a welded component, the authors also investigated the influence of different welding technologies on the given parameters. The tribological research was performed on an original test device. The obtained results show that welding joints have the typical microstructure of martensitic high-strength steels and that mechanical properties can be influenced by individual welding technologies. Meanwhile, the use of the electron beam significantly extends the adhesive-abrasive lifespan compared with the MAG (metal active gas) conventional method as well as to the base material. It is interesting that the absolute value of material loss over time reached the identity for both the laser beam and the electron beam. The obtained data provide changes to apply the proposed material for the production of the solved component.

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Characteristics and investigation of selected manufacturing defects of passenger car tires

Cited by 17 publications

References 2 publications

Strength analysis of an off-road lorry frame

Strength analysis of an off-road lorry frame

Proposal of a Method for Detection of a Damaged Hydraulic Shock Absorber in a Vehicle's Suspension System

Applied Research of Applicability of High-Strength Steel for a Track of a Demining Machine in Term of Its Tribological Properties

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