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ISSN: 1000-9345
CN: 11-2737/TH
e-ISSN: 2192-8258

Modeling and simulation research on the semi elliptical grinding area and temperature field of rail abrasive belt grinding

During the process of rail grinding, the local high temperature generated in the grinding contact area can affect the physical properties of the rail, thereby affecting its service performance. Therefore,...

Dynamic behavior of track (rack)-bridge system under running vehicle and temperature load in rack railway

Significant diurnal temperature variations in mountainous rack railways cause stiffness mismatches between the rack structure and simply supported bridges, leading to critical failures like bolt loosening...

A precise identification-based mode decomposition and its application in mechanical fault diagnosis

Current improved Empirical Mode Decomposition (EMD) methods enhance the accurate identification of peak and valley points in mechanical signals through noise-assisted filtering techniques, thereby improving...

Recent progress and challenges of key technologies in robotic assembly

How to substitute the human operator with a robot in various assembly tasks has to be taken into full consideration in intelligent manufacturing. Autonomous robotic assembly not only brings with high...

Simulation and experimental study on grinding force and subsurface deformation of FeCoCrNi high entropy alloy

High entropy alloy attracts widespread attention due to its excellent mechanical properties. It becomes a new type of alloy material with high application potential, but the grinding performance of...

Surface morphology and grinding performance of metal-bonded diamond grinding wheels sharpened by microwave discharge

While microwave (MW) discharge technology has been developed to address the challenges inherent in sharpening metal-bonded diamond grinding wheels (MD-GW), the surface morphology and grinding performance...

Advanced forming technologies for integrated metal components with extreme size and structure: State-of-the-art and perspectives

In aerospace, nuclear power, and new energy vehicles industries, utilizing integrated metal components with extreme sizes and/or structures is crucial for achieving significant weight-saving, performance-improvement,...

The Effectiveness of Proposed Pedestrian-Friendly Vehicle Front-end Shapes and Their Corresponding Controlled Braking Methods in Protecting Pedestrian Ground Contact Injuries

Previous studies have obtained some pedestrian-friendly vehicle front-end shapes, which show good pedestrian protection ability, but their effectiveness in protecting pedestrian ground contact injury...

Statistical and experimental study of effects of process parameters on Ti-6Al-4V coaxial wire-feed laser cladding

Three-beam wire-feed laser cladding, which generates a uniform energy distribution with a wire vertically fed into the molten pool, is a promising additive manufacturing technology. In this study, an...

Effect of alloying elements on the characteristics of metallic biodegradable materials: A review

Biomedical applications necessitate natural or synthetic biomaterials that can maintain, improve, or even replace damaged tissue or a biological function, facilitating healing for people who have suffered...

Multi-dynamic torque coordination control strategy for a power-split hybrid electric vehicle during mode shift

Mode shift is a special mechanism for a power-split hybrid electric vehicle (HEV) to realise electrically variable transmission, but the sudden change of equivalent inertia caused by topological configuration...

Structured laser vision-based measurement of GTA-weld pool

The current study of weld pool fluid dynamics in arc welding focuses on the numerical model establishment and simulation, and the x-ray combined with particle trace imaging observations, there is no...

A unified approach to study coupling behavior of friction and ball motion in ball screws

There is a strong coupling relationship between the friction characteristics of the ball-groove interface and the ball motion behavior. However, available studies tend to consider ball motion and frictional...

Degradation modeling of electrical connector insulation performance under long‐term storage conditions

To ensure reliable signal transmission of electrical connectors under long-term storage conditions, this study selected a specific type of electrical connector, a phenolic resin insulator, as the subject...

Self-recovery regulation method of rotor unbalance vibration based on GWO-ALQR

Excessive unbalanced vibrations of rotor-bearing systems significantly affect the stability and safety of high-end rotating machinery, such as aero engines, turbo-generators, and high-end machine tools....

Offset fabrication of off-axis aspherical surfaces with large off-axis amounts by slow tool servo single-point diamond turning

Off-axis aspherical mirrors are widely used in optical systems and precision measuring instruments, whereas off-axis aspherical mirrors with large sizes and off-axis are used in large optical systems...

Probabilistic fault‐tolerant fuzzy control for adaptive event‐triggered lane‐keeping system of autonomous electric vehicles

Realistic faults and failures often occur probabilistically in the lane-keeping system of autonomous electric vehicles, reducing system reliability and posing significant challenges to driving safety....

Decoupling incremental classifier and representation learning based continual learning machinery fault diagnosis framework under long-tailed distribution

Continual learning fault diagnosis (CLFD) has gained growing interest in mechanical systems for its ability to accumulate and transfer knowledge in dynamic fault diagnosis scenarios. However, existing...

Paving process of nylon powder considering mesoscopic forces in selective laser sintering

Powder paving is an intermediate process of selective laser sintering (SLS). The dimensional accuracy and mechanical properties of sintered components are directly affected by the quality of the powder...

Lubrication performance and mechanisms of ZIF-8@PDA as water-based lubricant additives

As environmental awareness, waste minimization and conscious living gain widespread attention, endeavors have been dedicated to acquiring new water-based (WB) lubricants for green manufacturing. Zeolitic...

Digital twin‐based error motion monitoring and prediction method for aerostatic spindle

The aerostatic spindle is a key component of ultra-precision machine tools, and its error motion is crucial to machining accuracy and reliability. Spindle error motion is unavoidable, and its online...

Parameter identification method of multi-particle model for lithium-ion batteries

Electrochemical models, characterized by high fidelity and physical interpretability, have been applied in various fields such as fast charging, battery state estimation, and battery material design....

Torque prediction theory and its application for full-face rock tunnel boring machine

A full-face rock tunnel boring machine (TBM) has two main parameters: cutterhead thrust and cutterhead torque. Cutterhead thrust can be predicted numerically using different methods, such as the rated...

Design of hybrid variable stiffness human–computer interaction contact unit module based on granular jamming

Existing rehabilitation exoskeleton robots suffer from poor compatibility with the human limb coupling method, large internal power loss, and poor wearable performance, which seriously affect the rehabilitation...

An Improved FMECA Method for CNC Machine Tools Based on Combined-variable Weight and Cloud Model

As core equipment in modern manufacturing, the reliability of computer numerical control (CNC) machine tools directly impacts factory production efficiency and product quality. Failure mode, effects...

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