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In order to improve the tribological performance of camshaft bearings, a design method based on NSGA-II and TOPSIS decision methods was proposed. The structural-performance parameters sample dataset was obtained. The multi-objective optimization ...

We present a mathematical model describing the equilibrium of a viscoelastic body with long-term memory in frictional contact with a sliding foundation. The process is quasistatic, and material damage resulting from excessive stress or strain is ...

This paper is dedicated to the numerical solution of a mathematical model that describes frictional quasistatic contact between an elastic body and a moving foundation, with the wear effect on the contact interface of the moving foundation due to ...

The emergence of “Digital Twin” has raised higher demands for the health management of industrial equipment. Sliding bearings, as crucial supporting components in rotating machinery, may wear under radial loads, posing potential risks to the ...

This paper is dedicated to the discussion of a new dynamical system involving a history-dependent variational-hemivariational inequality coupled with a non-linear evolution equation. The existence and uniqueness of the solution to this problem are ...

• Investigation of fretting wear behavior of steel wire ropes used in coal mine technology.
• 3D FE simulations using ABAQUS combining with subroutine UMESHMOTION.
• Experimental validation using data of fretted wires in the form of ...

Fretting wear is a surface damage phenomenon that occurs at contacting surfaces due to the micro relative movements of contacting surfaces. It is not easy to consider the parametric study of this phenomenon by experimental methods. For example, ...

Sliding bearings have become essential components in rotating machinery and are widely used in robotics field. Wear is the major failure mode of sliding bearings, while traditional prognostics methods for wear mostly rely on iterative calculations ...

Monitoring systems in sheet metal forming cannot rely on direct measurements of the physical condition of interest because the space between the die component and the material is inaccessible. Therefore, in order to gain further insight into the ...

The wear of cutting tools, cutting force determination, surface roughness variations and other machining responses are of keen interest to latest researchers. The variations of these machining responses results in change in dimensional accuracy ...

• DT model based meta-action, collected data from multi-sensors on transmission unit.

Precision performance prediction of transmission system is considered as a key technology to modern equipment health management. Given the importance of maintaining a transmission system's precision, this paper presents a hybrid ...

The wear in joints is a critical factor influencing the service life of the mechanism. Unlike existing researches that focus on wear prediction of joints, the correlation of wear among multiple joints in a mechanism is investigated in this study. ...

The acceptance of the machined surfaces not only depends on roughness parameters but also in the flatness deviation (Δ_fl). Hence, before reaching the threshold of flatness deviation caused by the wear of the face mill, the tool inserts need to be ...

• Wear in the articulating surfaces is the main reason for the revision surgery of hip implants.
• ANSYS is used to estimate the linear wear rate at the taper trunnion interface against varying the taper trunnion top surface geometry.
• ...

The hip joint is the vital joint that is responsible for the bodyweight transfer from the upper body to the lower body. Due to age these joints are worn out and need to be replaced by artificial hip implants. Wear is the ...

Design of experiment for the development of stir cast calcium carbonate-reinforced aluminium composite is a search for optimum combination of material and process control parameters for best physical and mechanical properties. A soft-computing ...

The hip is the second largest articulation of the human body, with its primary role in locomotion. It is exposed to a high number of risks first of all the wear which causes its correct functioning. In some cases, the damages suffered by this ...

This paper is developed in the framework of dental tribology. The aim of this paper is to show the first results of an experimental investigation devoted to the analysis of the influence of whitening on the wear resistance of natural teeth. Three ...

Fretting damage analysis is carried out for several 3D contact geometries (cylinder-on-plane and punch-on-plane) under different slip regimes. A robust numerical environment is implemented to simulate the consequences of fatigue-fretting, in terms ...

The horizontally reversible plough (HRP) most widely used in soil excavating is a novel tillage tool, whose favorable characteristic is that it can continuously and alternatively implement a high-speed commuting soil cutting operation. ...

This paper presents a quasistatic problem of an elastic body in frictional contact with a moving foundation. The model takes into account wear of the contact surface of the body caused by the friction. We recall existence and ...

Nowadays, face milling is one of the most widely used machining processes for the generation of flat surfaces. Following international standards, the quality of a machined surface is measured in terms of surface roughness, Ra, a parameter that will ...