Recent Articles

Open access

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

Dynamic performance improvement of high-speed on/off valve based on pre-excitation bootstrap control

High-speed on/off valve (HSV) is the core control component of digital hydraulic system (DHS), its dynamic performance determines the response speed and control accuracy of DHS. Initial current and...

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...

Fault diagnosis of rolling bearing based on two-dimensional composite multi-scale ensemble gramian dispersion entropy

One-dimensional ensemble dispersion entropy (EDE1D) is an effective nonlinear dynamic analysis method for complexity measurement of time series. However, it is only restricted to assessing the complexity...

A review on research of system dynamics and multi-source fault diagnosis of key components in high-speed train

As China’s high-speed railway technology advances, high-speed trains have emerged as a pivotal mode of transportation, instrumental in facilitating passenger and freight mobility while fostering robust...

Study on noise dissipation effects of porous materials in suppressing tire acoustic cavity resonance noise

The tire acoustic cavity resonance (TACR) noise is a significant source of the structure-borne noise inside a vehicle in the low-frequency range. This paper studies the noise dissipation effect of porous...

Adaptive robust control of multi-DOF hydraulic manipulator with precise online load estimation

Hydraulic manipulator shows vast application potential in heavy load working conditions. However, achieving high control precision in these devices is notably more challenging compared to electric manipulators,...

Opening torque of a butterfly vent valve considering pollution particle intrusion

A surge is an unstable flow characterized by airflow interruption in a compression system that seriously affects the performance of the entire compression system, including the compressor. A butterfly...

Arapaima-inspired NiTi bionic lattice structures with excellent energy absorption and splendid recoverability fabricated by laser powder bed fusion

Bionic lattice structures with high-energy absorption and compression reversibility play crucial roles in aerospace and other engineering applications. However, the realization of these functions depends...

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...

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...

Analysis, modeling, and experimental evaluation of a double-stator piezoelectric inertial actuator driven by different phase angles of the driving current

In dual-stator inertial piezoelectric actuators, the effect of the phase angle of the driving current (PADC) on output performance is poorly understood. In particular, the influence of different phase...

Improved drag reduction properties of biomimetic surface with cross-scale arrayed structures based on a comparative simulation study

Current drag reduction research predominantly focuses on micro-scale surface modifications inspired by sharkskin or riblet textures, often overlooking the synergistic effect of macro- and micro-scale...

Stiffness evaluation and experimental test of a novel redundantly actuated parallel machining robot

Parallel machining robot is a new type of robotized equipment for high-efficiency machining structural components with complex geometries. Terminal rigidity is of great importance index for such type...

A general construction method of reconfigurable deployable polyhedral mechanisms with the circumscribed sphere

The current research of the construction of reconfigurable deployable polyhedral mechanisms (RDPMs) has predominantly focused on regular and Archimedean polyhedra. However, the construction methods...

Fully flexible wearable pouch pneumatic artificial muscle based on asymmetric expansion

Pneumatic artificial muscle (PAM) is the core actuating component in wearable devices and soft robots. It typically incorporates rigid elements to enhance actuation performance, leading to reduced wear...

Research on the reliability of motion accuracy for ammunition conveyor in artillery automatic loading system

The automatic loading systems of artillery are critical for the accurate, efficient, and reliable delivery of projectiles and propellants into the gun chamber. In modern artillery, the ammunition conveyor...

Optimal design of a novel dual-axis parallel solar tracker

Being renewable and readily available, solar energy has gained significant attention in addressing the global energy crisis and climate change. The efficiency of solar-energy harvesting using a concentrator...

Mechanical-thermal coupling model and fatigue life analysis of axle-box bearings of high-speed train

The axle box bearings of high-speed trains often operate in extremely harsh environments, bearing loads from different directions. Long-term operation and frequent changes in working conditions can...

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....

Achieving favorable surface quality of titanium alloy during electropolishing process with recyclable alcohol-based electrolyte

The alcohol-based electrolyte exhibits excellent electropolishing properties for titanium alloys. However, its polishing effectiveness diminishes and the ability to polish is weakened or even lost after...

Integrated topology optimization method for crashworthiness of metal-FRP hybrid thin-walled tubes: A review and analysis

Based on the demands for crashworthiness and lightweight in the passive safety of transportation vehicles, metal-fiber reinforced polymer (FRP) hybrid thin-walled tubes (MFHTWTs) integrate the toughness,...

Research on hill start assist control with ASR for electric vehicles on split-μ road

When the vehicle is on a split-μ ramp and is restricted by the differential's torque-equalizing characteristic, a significant functional conflict may occur between the driving force limitation requirement...

Prediction of laser welding deformation using a deep learning model optimized by a differential evolution algorithm

Welding deformation adversely affects the quality and precision of structural components, and traditional methods require significant material resources and time. Machine learning has demonstrated exceptional...

Design, analysis, and test of novel compliant rotation-reduction mechanism

Designing and analyzing compact micro rotation stages are key issues in precision engineering. The serial connection of a compliant motion-scaling mechanism to a rotary microdriving component enhances...

A predictive modeling for the variation of orifice throttling coefficient of hydraulic spool valve caused by erosion behavior

Hydraulic spool valves are crucial components of hydraulic systems. Solid pollution particles mixed in hydraulic oil could result erosion wear of the valve orifice, then lead to a decrease in the performance...

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