⚡ electrical engineering

Design and Experimental Validation of an Integrated Downhole Motor-Drive System

This study presents and experimentally validates a high-power, integrated downhole motor-drive system utilizing a triple-closed-loop PID control architecture and dsPIC-based hardware, which successfully demonstrated stable, continuous operation for over 200 hours at 175°C with minimal current fluctuations and rapid response times under extreme logging-while-drilling conditions.

Ruiyu Qian, Xiaolong Hao, Liangchen Zhang, Yangtao Hu, Xu Yan2026-08-14
⚡ electrical engineering

Numerical Fatigue Analysis of a PMMA/ZrO₂/nHA Composite Under Biaxial In-Phase Loading: Development of a Criterion Correlated with Monotonic Response

This study numerically evaluates the fatigue performance of PMMA/ZrO₂/nHA nanocomposites under biaxial loading, establishing a novel fatigue criterion correlated with monotonic response and demonstrating that increasing nanoparticle volume fractions significantly enhances durability.

Nacer Logzit, Mohamed Said Boutaani, Laid Chaibainou, Ahmed Laichaoui, Mustapha Hazzam2026-08-14
⚡ electrical engineering

Influence of the response modification factor on the bidirectional seismic performance of reinforced-concrete buildings

This study utilizes FEMA P695 methodology and Incremental Dynamic Analysis on 3D reinforced-concrete building models to demonstrate that bidirectional seismic excitation significantly reduces collapse capacity, necessitating a reduction in the response modification factor (R) from 8 to 4–5, while validating an efficient 2DOF framework for accurate bidirectional collapse assessment.

Marco F. Garcia, Renzo J. Mejia, Victor I. Fernandez-Davila2026-08-14
⚡ electrical engineering

Multi-objective optimization of adjustable orifice valve insulation lining based on thermal-solid coupling and improved whale algorithm

This paper presents a multi-objective optimization framework combining finite element analysis, surrogate modeling, and an improved whale algorithm to determine the optimal geometric parameters for an adjustable orifice valve's insulation lining, successfully balancing thermal insulation performance with structural reliability and reducing maximum equivalent stress by approximately 36.3%.

Shuxun Li, Jian Zhang, Xinhao Liu, Yu Zhao, Jianlong Zhu2026-08-14
⚡ electrical engineering

The Value of AI-Driven Predictive Intelligence in Wildfire Relief Logistics: Evidence from the 2026 Ontario Thunder Bay 36 Wildfire

This paper evaluates a hybrid AI framework for wildfire relief logistics using the 2026 Thunder Bay 36 event and finds that while predictive models accurately forecast road disruptions, they only improve operational outcomes when network closures coincide with active service periods, as schedule slack often renders advanced routing redundant.

Hooman Razavi, Mostafa Hajiaghaei-Keshteli, Omid Titidezh, Hossein Bonakdari, M. Hamed Mozaffari, Neale R. Smith2026-08-14
⚡ electrical engineering

A Multiscale Graph Generative Adversarial Network Method for Prediction of Autoclave Curing Temperature Field in CFRP component

This paper proposes a multiscale graph generative adversarial network that leverages two-level CLJP coarsening and graph attention to accurately predict the spatiotemporal temperature field and degree of cure in CFRP autoclave processes, achieving superior accuracy and a 99% reduction in computation time compared to traditional CFD simulations.

Guangqi Qiu, Wenjing Yu, Ning Zhong, Yongqian Xu, Peng Huang, Yingkui Gu2026-08-14
⚡ electrical engineering

Optimization of Process Parameters for Binder Jetting 3D Printing of GH2132 Superalloy Based on Machine Learning

This study optimizes the binder jetting 3D printing process for GH2132 superalloy green parts by combining orthogonal experiments with an Artificial Neural Network and Bayesian optimization to identify key parameter interactions, ultimately achieving a validated relative density of 58.3% and dimensional deviations within 2%.

Yong Tao, Zhou Fan, Xia Luo, Bensheng Huang, Qianlong Wei, Manni Li, Chengchen Hu2026-08-14
⚡ electrical engineering

Aerodynamic and Ballistic Analysis of a 155 mm Rocket-Assisted Projectile

This study utilizes validated CFD simulations and ballistic modeling to demonstrate that the exhaust plume of a 155 mm Rocket-Assisted Projectile significantly alters base flow aerodynamics, increasing drag by up to 90% and reducing maximum range by approximately 720 meters, thereby providing a framework for optimizing propulsion systems to enhance artillery performance.

Lucas Gomes do Amaral, Victor Santoro Santiago, André Luiz Tenório Rezende2026-08-14
⚡ electrical engineering

Inter-System Agreement and Reliability of a Gnss-Rtk and Dual-Imu Wearable System for Soccer Performance Monitoring

This study demonstrates that a GNSS-RTK and dual-IMU wearable system offers acceptable inter-system agreement and good-to-excellent interunit reliability for monitoring key soccer external-load metrics like total distance and peak speed, though metrics for very high-speed running exhibit greater variability and require cautious interpretation.

Saeid Rostami¹, Mohammad Reza Yazdchi², Bijan Rajaeian³, Amir Shirazi⁴, Mohammad Ali Hashemipoor⁴, Iman Kamali2026-08-14
⚡ electrical engineering

Feature driven optimization design for free-form bulge-formed joint based on Kriging model

This paper proposes a feature-driven optimization framework for free-form bulge-formed joints that decomposes surface geometry into key parameters, constructs a high-accuracy Kriging surrogate model to capture nonlinear performance relationships, and validates the method's effectiveness in optimizing joint design compared to alternative modeling approaches.

Yuan Liu, Jinjin Zhai, Chen Yang, Ziyi Yang, Yuantao Sun2026-08-14