2026 October - 141 articles
Investigating pressure-dependent laser powder bed fusion (LPBF) requires equipment capable of performing repeated layer cycles in a sealed pressurized environment. This study describes a pressurized LPBF platform integrating internal powder feeding a...
This paper presents a vector-control-based strategy to regulate the current in a dual three-phase voltage-source inverter (VSI)-fed Six-terminal nine-phase (6T9P) induction motor. The 6T9P winding layout offers the benefits of a lower inverter leg co...
Interstroke fluctuations in the main cutting force in gear shaping cause uneven tool loading and localized overloading. This study develops a stroke-by-stroke circumferential feed optimization method for constant-cutting-force gear shaping. An elemen...
The second rotational-frequency component (2X) is commonly used as a misalignment-related vibration feature, but its amplitude stability after reassembly remains uncertain. This exploratory study compares three independent normal-bearing reassembly s...
High-pressure seawater pumps are essential in underwater systems, yet their broader application is constrained by substantial volume, heavy weight, and limited miniaturization. To overcome these obstacles, this study proposes a novel prototype design...
Accurate three-dimensional digitization of cultural stone surfaces is important for their documentation and quantitative characterization. This work presents the design, implementation, and experimental evaluation of a portable, low-cost laser triang...
The bogie transmission system is the core power chain of a railway vehicle, and the health of its traction-motor bearings, gearbox bearings and gears directly determines running safety. Early-stage fault impulses, however, are weak and are usually bu...
Machining deformation causes local variations in wall thickness in large rotational thin-walled components, while limited access to the inner surface complicates measurement and compensation. This study uses raw points (RPs) on accessible reference r...
Battery capacity and resistance affect different vehicle responses, and their apparent importance depends on the range criterion. This study compares these effects in a fixed 2011 Nissan LEAF ZE0 model using measurements linked to the same vehicle id...
Modern intermittent electromechanical drive systems demand reliable heavy-load startup capability, while conventional squirrel-cage induction machines suffer from an inherent trade-off between high starting torque and severe transient inrush current....
Conventional ball bearing interference fit verification relies heavily on labor-intensive finite element (FE) simulations, while existing data-driven approaches suffer from non-standard dataset preparation, single-objective optimization, and a lack o...
Nonlinear factors such as inertia and friction in the feed system of CNC machine tools, along with non-minimum phase characteristics, can induce significant tracking errors and directly degrade the contour accuracy of the machined workpiece. Conventi...
This study investigated the effects of the steering wheel center module mass on driver airbag deployment and driver injury through finite element analyses under FMVSS 208 frontal-impact conditions. The module mass was varied up to 500 g and extended...
Conventional stability analysis of hydropower units focuses on damping ratios, which characterize how fast oscillations decay but cannot explain why different mechanical variables exhibit distinct waveforms under the same disturbance. This paper prop...
The secure operation of a hybrid AC/DC grid requires not only a stable/unstable decision but also the voltage recovery margins of vulnerable buses. This paper presents a cascaded dual-criterion assessment and severity warning framework using a 0.75 p...
Changes in operating speed and load shift vibration-signal distributions, limiting the transfer of fault diagnosis models across operating conditions. Temporal offsets between sampled windows introduce an additional source of variability. This study...
Conventional object pickup strategies utilize multi-point contact by grippers or an enveloping grasp by multi-finger hands, both of which require as high a number of degrees of freedom (DOFs) as possible, in addition to precise control to maintain th...
Bridge cranes are essential material-handling equipment, and their main girders must simultaneously satisfy the requirements of lightweight design, stiffness, strength, and fatigue life. Existing optimization studies on crane main girders are mostly...
Multi-inverter photovoltaic plants connected to weak grids can satisfy point-of-common-coupling requirements while individual converters approach internal limits. This paper develops a critical-mode-aware two-stage safety projection for constraint-aw...
To address the issue of significant torque ripple in axial flux permanent magnet stepper motors with multi-air-gap coupling structures, a torque ripple suppression method based on the coordinated adjustment of rotor misalignment and structural parame...
To investigate the dynamic characteristics of a double-pressure-angle helical face gear transmission system, a digital tooth surface of a double-pressure-angle helical face gear, considering tooth surface modification, was established based on the ge...
The transition from conventional manufacturing processes to flexible production systems represents a key enabler for improving adaptability for faster product change and therefore manufacturing efficiency. However, the increased complexity of such ma...
Structural deformation of large-scale phased-array antennas under complex service environments seriously degrades the electromagnetic performance of radar systems. It is critical to achieve high-precision full-field deformation reconstruction of ante...
Condition monitoring in injection moulding commonly relies on dedicated in-mould sensing, whereas the potential of routinely collected production data for indirect tooling-condition surveillance remains less established. This study proposes an interp...
Artificial intelligence (AI) is rapidly expanding computer-aided design (CAD) from shape generation toward generative, conversational, and agentic engineering. However, most AI–CAD evaluations remain dominated by geometric similarity and execut...
Grid decarbonization forces Francis turbine runners into frequent start–stop and part-load duty, where vortex rope and repeated transients accumulate high-cycle fatigue damage; existing studies isolate conditions and rarely attribute damage to...
Sliding-mode control (SMC) is valued in automotive applications for its robustness and its low computational cost, although chattering remains a practical obstacle. Higher-order and adaptive formulations reduce chattering, but each carries limitation...
Excessive vibrations in rotating machinery accelerate wear and component failures, causing undesired downtime in industrial plants. To assess the severity of these vibration levels, ISO 10816-7 classifies pump condition into four zones. Zone A repres...
Light Commercial Vehicles (LCVs) need to be manufactured faster than ever, placing immense pressure on engineering teams to shorten development cycles. The double wishbone steering knuckle perfectly illustrates this challenge, as it must endure massi...
In this paper, a Rigid Press Device (RPD) is proposed for robotic stack drilling in aircraft assembly. Although robots have widened their applicability, robot machining is rarely applied, mainly due to their low stiffness. Meanwhile, the interlayer g...
This study proposes a highway trajectory-planning method integrating a risk-pulse driving risk field (RPDRF) with a spatiotemporal semantic corridor (SSC) to strengthen forward-looking risk quantification and its transfer between behavioral decisions...
The instrumentations, devices, and machines used in biomedical applications have a highly intricate structure that necessitates not just a substantial number of components (i.e., medical imaging machines; medical sensing devices; robotics; wearable d...
This study develops a compact apparent-wind framework for high-performance sailing craft and uses vertical-axis wind-turbine (VAWT) kinematics as a bounded comparison. By establishing closed-form equations, the model connects key variables: sailing a...
Dissolved gas analysis is universally used to identify power transformer faults; however, direct neural network optimization can be underpowered when highly correlated gas variables are fed to a small classifier. This study evaluates a leakage-contro...
This study investigates a dynamic parallel-machine scheduling problem with human–robot collaboration (DPMS-HRC), where dynamically arriving jobs are assigned to eligible workstations and processed by workers, robots, or human–robot collab...
Manufacturing-cell digital twins increasingly combine independently developed services that can influence shared physical resources. When several state-changing services are individually admissible but request incompatible values for the same control...
The hybridization of directed energy deposition (DED) machines is commonly made by integrating an additive head into an existing CNC machine but there is no instance in the literature of the opposite being done. A commercial DED machine was integrate...
The final geometry of a three-dimensional chip is commonly described by a combination of geometric parameters, including curl radius, pitch, and axis orientation. However, parameter combinations that are mathematically admissible do not necessarily c...
This study examines a cantilever-driven sectorial-grating sliding triboelectric nanogenerator (TENG) for vibration energy harvesting. The prototype converts cantilever motion into relative sliding of PTFE and PVC layers and modulates electrode overla...
In make-to-order (MTO) flexible job shops, frequent and dynamic job arrivals place stringent demands on the real-time responsiveness of scheduling systems. Dispatching rules are widely used in real-time scheduling because they can generate decisions...
Magnetic field ripple in the audible-frequency range can induce magnetostriction in ferromagnetic components, causing vibration and noise even in non-rotating systems such as electric vehicle battery systems. Magnetic shielding can reduce such excita...
Hybrid-actuated linkage mechanisms combine a main drive with a controllable auxiliary input to shape motion while distributing actuator demand. This narrative review examines mechanism design, control strategies, and energy management for presses and...
Fast and selective faulted-section identification is challenging in multiterminal medium-voltage DC (MVDC) ring networks because the initial fault transient is affected by converter dynamics, fault resistance, line parameters, and multiple feeding pa...
The closedness of solution trajectories around singular points is a central question in the qualitative analysis of nonlinear oscillators, but it is rarely established rigorously when the restoring force has a finite-distance singularity. This work a...
Dynamic warehouse task allocation must coordinate loading, transport and unloading robots under changing conditions. We propose a versioned neuro-symbolic architecture in which DeepSeek proposes facts and restricted rules, an authenticated semantic s...
With the increasing use of massage robots as direct-contact rehabilitation devices, their evaluation must address both equipment failures and use-related risks. This study presents a prototype-stage assessment framework for a seated knee-adjustment b...
Small pose errors in contact-rich manipulation can cause rapid force buildup, restricting exploration and complicating demonstration collection and policy learning. This study presents observable passive compliance, which combines mechanical accommod...
As a powerful tool for sparse signal representation, dictionary learning has gained traction in data-driven fault diagnosis. However, noise interference exists in actual industrial environments; noise as a common feature across all classes inevitably...
Numerical prediction of high-order nonlinear oscillators using conventional physics-informed neural networks (PINNs) is severely hampered by spectral bias, which prioritizes low-frequency components and leads to significant errors in capturing multi-...
Local navigation in dynamic indoor environments is challenging, as a single 2-D LiDAR scan contains no obstacle motion information, and control commands must satisfy the robot’s velocity and acceleration constraints. This paper proposes ST-DRL,...
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