Prediction of fatigue life of suspension parts of the semi-trailer in the early stages of design

Вдовин, Д. С.; Levenkov, Ya. Yu.; Чичекин, И. В.

doi:10.1088/1757-899x/820/1/012002

Cited by 4 publications

(7 citation statements)

References 14 publications

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“…The axles of trailers and semi-trailers are one of the main and most important elements, which must be carefully designed and tested experimentally under static and dynamic loads, as the axle is subjected to additional loads in the event of road roughness or off-road [ 1 ]. The durability of the suspension parts refers to the duration of the onset of fatigue, defined as the number of cycles up to a certain component cracking length under cyclic loads [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Vehicle Chassis Axle Fractures

et al. 2023

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With the rapid development of the road transport industry, trucks with semi-trailers have become the main means of transporting goods by road. High quality, durability and reliability of the construction are the main requirements for the production of trailers. Trailer and semi-trailer axles are one of the main and most important components of a truck. Due to the fact that semi-trailer axles are subjected to additional static and dynamic loads during operation, their proper construction is extremely important, therefore they should be carefully designed and tested. The durability of the suspension components refers to the duration of the onset of fatigue. This article presents an analysis of damage to the rear axle of the semi-trailer using macroscopic observations of the damage site and dynamic FEA of stress distribution in the axle material. In order to identify the probable cause of the damage, eight cases of loading the semi-trailer axle were considered. Analytical solutions have shown that in various cases the yield point is exceeded and the strength limit of the modeled semi-trailer axle is reached. The risk of damage to the vehicle’s suspension system components increases on poor roads (bumps and winding road sections).

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Section: Introductionmentioning

confidence: 99%

Analysis of the Vehicle Chassis Axle Fractures

et al. 2023

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“…In addition to the construction, suspension, drive and safety systems play an important role. In turn, the reliable operation of these systems has a direct impact on road safety [1][2][3][4][5][6][7][8][9][10]. On the other hand, the safety issues related to the transport of chemical products in road transport are presented in [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, the safety issues related to the transport of chemical products in road transport are presented in [11][12][13]. The durability of vehicle suspension components refers to the duration of the onset of fatigue, defined as the number of cycles to a specific length of component failure under cyclic loads [6,14,15]. Therefore, the axles of trailers and semi-trailers are one of the main and most important elements that carry the greatest loads during the transport of goods.…”

Section: Introductionmentioning

confidence: 99%

Material’s Strength Analysis of the Coupling Node of Axle of the Truck Trailer

et al. 2023

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Road transport plays an important role in the transport of goods and people and is important for the national economy. Damage usually excludes the means of transport from operation, which causes disruption of supply chains. One such damage is the failure of the suspension system of the vehicle or trailer, which usually occurs when the vehicle is heavily loaded. Such a defective system has been analyzed in this publication. Mathematical apparatus and finite element method (FEM) numerical simulations were used. A dangerous axle cross-section in terms of load was indicated and the maximum stresses in this area were calculated for two types of roads. On highways, the stress at the critical point was 199 MPa, and on uneven roads it increased to 304 MPa, which is comparable to the yield point. It was found that the second form of vibration may cause stresses in the damage area, but the excitation frequency would have to be quite high. The probability of such a load and failure event occurring is low under operating conditions.

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“…Vehicle stability studies were also studied by Dizo [2] and Jilek [4]. In turn, the issues of modeling vehicles in motion were dealt with by Vdovin et al [5]. Research on failures of safety systems in buses was presented by Kilikevičienė et al [6].…”

Section: Introductionmentioning

confidence: 99%

“…After axle load during road traffic test, results were published in papers [1,5,13]. Hence, the aim of work was to find whether the natural vibrations could be the cause of damage to the axle in the described critical place.…”

Section: Introductionmentioning

confidence: 99%

ANALYSIS OF VIBRATION MODES OF SEMI-TRAILER AXLE AND their effects on FATIGUE LIFE

DROZD,

Matijošius,

BORETSKA

2023

METAL Conference Proeedings

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During the operation of the axle, the load acting on the axle housing in the vertical direction has a significant effect on the fatigue life of the components. Cracks are caused by a constant stress concentration in the axle housing, resulting in fatigue at the concentration point. If the load exceeds a certain threshold, microscopic cracks will begin to form at the stress concentration point. Later, the cracks grow due to the cyclic load of fatigue. Eventually, the cracks reach a critical limit and then the structure suddenly breaks. Axle housing failures are also affected by factors such as uneven load effect, housing slope, and eccentricity. The paper presents an analysis of reliability and damage to the rear axle of a truck semi-trailer caused by natural vibrations. For this purpose, finite element analysis where conducted, preceded by a theoretical introduction. Several vibration modes were considered in order to determine the most likely point of damage initiation to the semitrailer axle. Comparing the test results with the observations, it was found that natural vibrations in the range of 53-533 Hz may be the cause of the limited fatigue life of the main tube. Due to the greatest deformation of the central part of the axis during vibrations, the greatest stresses in the critical zone will occur for mode 8 at a frequency of about 533 Hz which also means many fatigue load cycles.

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Prediction of fatigue life of suspension parts of the semi-trailer in the early stages of design

Cited by 4 publications

References 14 publications

Analysis of the Vehicle Chassis Axle Fractures

Analysis of the Vehicle Chassis Axle Fractures

Material’s Strength Analysis of the Coupling Node of Axle of the Truck Trailer

ANALYSIS OF VIBRATION MODES OF SEMI-TRAILER AXLE AND their effects on FATIGUE LIFE

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