ISA transactions最新文献

Physics-informed deep hidden markov model and Wasserstein Generative Adversarial Networks for hydraulic system condition monitoring 基于物理信息的液压系统状态监测深层隐马尔可夫模型和生成对抗网络。

IF 6.5 2区计算机科学

ISA transactions Pub Date : 2026-03-01 Epub Date: 2026-01-23 DOI: 10.1016/j.isatra.2026.01.026

Nahid Jafari, Maliheh Maghfoori Farsangi

{"title":"Physics-informed deep hidden markov model and Wasserstein Generative Adversarial Networks for hydraulic system condition monitoring","authors":"Nahid Jafari, Maliheh Maghfoori Farsangi","doi":"10.1016/j.isatra.2026.01.026","DOIUrl":"10.1016/j.isatra.2026.01.026","url":null,"abstract":"<div><div>Hydraulic systems are vital in industrial settings, and reliable Condition Monitoring (CM) is crucial to preventing failures. This paper introduces a Physics-informed Deep Hidden Markov Model (PiDHMM) combined with a Wasserstein Generative Adversarial Network (WGAN) for enhanced fault detection. PiDHMM improves traditional Hidden Markov Models (HMMs) by embedding physical constraints into state transitions and leveraging a Convolutional Neural Network (CNN) to model emission probabilities and capture complex sensor behavior. To address data scarcity in rare failure modes, WGAN is employed to generate realistic synthetic sensor data. The proposed framework is validated on a multi-sensor hydraulic dataset with known failure events. Comparative results show that PiDHMM outperforms both standard HMMs and deep HMMs without physics constraints, achieving a significant increase in accuracy for fault classification. The inclusion of physics-informed transitions enhances temporal consistency and interpretability, while the WGAN-based augmentation addresses issues of data imbalance, further improving model performance. These results demonstrate that the PiDHMM-WGAN approach offers a more precise, interpretable, and robust solution for hydraulic system monitoring.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"170 ","pages":"Pages 102-114"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146069397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Safety-critical data-enabled predictive control for wheeled mobile robot 轮式移动机器人的安全关键数据预测控制。

IF 6.5 2区计算机科学

ISA transactions Pub Date : 2026-03-01 Epub Date: 2026-01-23 DOI: 10.1016/j.isatra.2026.01.035

Ali Can Erüst , Fatma Yıldız Taşcıkaraoğlu , İbrahim Beklan Küçükdemiral

{"title":"Safety-critical data-enabled predictive control for wheeled mobile robot","authors":"Ali Can Erüst , Fatma Yıldız Taşcıkaraoğlu , İbrahim Beklan Küçükdemiral","doi":"10.1016/j.isatra.2026.01.035","DOIUrl":"10.1016/j.isatra.2026.01.035","url":null,"abstract":"<div><div>This paper addresses the real-world, safety-critical planning problem for a wheeled mobile robot with an unknown model, focusing on obstacle avoidance in complex environments. Data-enabled predictive control (DeePC) is a renowned optimal control framework for unknown linear time-invariant systems, offering the ability to predict future system trajectories using only past input/output measurements, without requiring explicit system identification. To enable its application to nonlinear systems, a local linear approximation technique with online data updates is adopted. To further improve robustness, a novel adaptive Lasso-based regularization term is incorporated into the cost function. Safety is a critical challenge for data-enabled control of nonlinear systems, which is addressed by incorporating discrete-time control barrier functions into a quadratic programming–based safety filter operating alongside the DeePC. We provide a formal proof of the practical stability of the closed-loop system, ensuring bounded trajectory tracking. Real-time simulations in the ROS-Gazebo environment show that adaptive regularization reduces the trajectory tracking error by about <span><math><mn>20.2</mn><mi>%</mi></math></span>.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"170 ","pages":"Pages 92-101"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146095315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adaptive event-triggered scheduling control for multiple robot teleoperation systems 多机器人遥操作系统的自适应事件触发调度控制。

IF 6.5 2区计算机科学

ISA transactions Pub Date : 2026-03-01 Epub Date: 2026-01-23 DOI: 10.1016/j.isatra.2026.01.027

Hai Yang, Xia Liu, Chengyi Wan

引用次数: 0

Adaptive event-triggered-based efficient model predictive control for nonlinear systems subject to cyber attacks and actuator saturation: a decay aggregation approach 受网络攻击和致动器饱和影响的非线性系统的自适应事件触发有效模型预测控制：一种衰减聚合方法。

IF 6.5 2区计算机科学

ISA transactions Pub Date : 2026-03-01 Epub Date: 2026-01-12 DOI: 10.1016/j.isatra.2026.01.001

Xiangqi Zuo , Xiaoming Tang , Xi Su , Hongfen Yuan , Jun Wang , Jingjie Yuan , Minghong She

{"title":"Adaptive event-triggered-based efficient model predictive control for nonlinear systems subject to cyber attacks and actuator saturation: a decay aggregation approach","authors":"Xiangqi Zuo , Xiaoming Tang , Xi Su , Hongfen Yuan , Jun Wang , Jingjie Yuan , Minghong She","doi":"10.1016/j.isatra.2026.01.001","DOIUrl":"10.1016/j.isatra.2026.01.001","url":null,"abstract":"<div><div>In this paper, a novel event-triggered-based decay aggregation efficient model predictive control (DAEMPC) problem is investigated for nonlinear systems represented by interval type-2 (IT2) T-S fuzzy models subject to cyber attacks and actuator saturation. First, to make full use of communication resources, an adaptive event triggered (AET) strategy is applied to determine the data transmission in the sensor to controller link. A Bernoulli random process is introduced to denote the denial-of-service (DoS) attack, and the polytopic description method is utilized to characterize the actuator saturation. Second, the efficient model predictive controller concerning the decay aggregation approach is designed for the considered nonlinear networked control system (NCS). It involves offline solving feedback control law and designing ellipse feasible sets whose projections are vertical in the <span><math><mi>x</mi></math></span>-space, and online optimizing the perturbation variable instead of the whole performance objective function. Different from the previous studies, the presented AET-based DAEMPC algorithm not only compensates for the deficiencies in the communication network, but also enlarges the initial feasible set and reduces the computational burden. Finally, the validity of the presented algorithm is illustrated through the simulation of continuous stirred tank reactor (CSTR).</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"170 ","pages":"Pages 1-10"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146127918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Observer based adaptive discrete hierarchical sliding mode control for industrial overhead crane with input saturation 基于观测器的工业桥式起重机输入饱和自适应离散分层滑模控制。

IF 6.5 2区计算机科学

ISA transactions Pub Date : 2026-03-01 Epub Date: 2026-01-23 DOI: 10.1016/j.isatra.2026.01.028

Lixin Wei , Qingshun Liu , Xin Li , Songwang Guo

引用次数: 0

A new modified low chattering fast terminal sliding mode control for non-isolated minimum-phase power converter 一种新的改进的低抖振快速终端滑模非隔离最小相功率变换器控制方法。

IF 6.5 2区计算机科学

ISA transactions Pub Date : 2026-03-01 Epub Date: 2026-01-31 DOI: 10.1016/j.isatra.2026.01.043

Güven Balta , Cagdas Hisar , Necmi Altin , Ibrahim Sefa

{"title":"A new modified low chattering fast terminal sliding mode control for non-isolated minimum-phase power converter","authors":"Güven Balta , Cagdas Hisar , Necmi Altin , Ibrahim Sefa","doi":"10.1016/j.isatra.2026.01.043","DOIUrl":"10.1016/j.isatra.2026.01.043","url":null,"abstract":"<div><div>Through modification of the strongest global fast terminal sliding mode control (GFTSMC) previously reported in the literature, a new sliding surface is proposed in this paper. Among all the FTSMC structures evaluated so far, the new surface exhibits the least chattering and the best error convergence trajectory with the addition of the logarithmic expression. The effectiveness of the low chattering GFTSMC (LCGFTSMC) is demonstrated on the non-isolated minimum-phase DC-DC power converter known as the Buck converter based on the direct SMC theory. In the direct SMC, hysteresis modulation (HM), which results in a fluctuating switching frequency, is replaced by parabolic modulation (PM), which offers a constant switching frequency. Dynamic results are obtained and compared for both modulations, taking into consideration one of the factors that cause the system’s switching frequency to fluctuate. Furthermore, and most importantly, the PM approach is compared to one of the techniques presented in the literature for fixed switching frequency, which is another significant part of this study. Because the closed loops offered for fixed switching frequencies have never been compared to each other prior to this work. A series of simulation and experimental tests have been carried out on the new sliding surface and the PM, and the results show that both provide remarkable dynamic responses compared to their counterparts.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"170 ","pages":"Pages 274-287"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146168575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Data-driven distributed EMPC for economic optimization of interconnected systems: A Hankel matrix approach 面向互联系统经济优化的数据驱动分布式EMPC：一种汉克尔矩阵方法。

IF 6.5 2区计算机科学

ISA transactions Pub Date : 2026-03-01 Epub Date: 2026-02-01 DOI: 10.1016/j.isatra.2026.01.031

Fatemeh Ostovar , Ali Akbar Safavi , Leonhard Urbas

引用次数: 0

Fault diagnosis of rolling bearing under time-varying rotational speeds via improved S high-order synchroextracting transform 基于改进S高阶同步提取变换的时变转速下滚动轴承故障诊断。

IF 6.5 2区计算机科学

ISA transactions Pub Date : 2026-03-01 Epub Date: 2026-01-13 DOI: 10.1016/j.isatra.2026.01.016

Guofeng Wang , Jianhong Yang

{"title":"Fault diagnosis of rolling bearing under time-varying rotational speeds via improved S high-order synchroextracting transform","authors":"Guofeng Wang , Jianhong Yang","doi":"10.1016/j.isatra.2026.01.016","DOIUrl":"10.1016/j.isatra.2026.01.016","url":null,"abstract":"<div><div>In rotating machinery condition monitoring, there is a growing demand for diagnosing bearing faults under time-varying rotational speeds using the tacholess order tracking (TLOT) technique. A critical step in TLOT is the rapid and accurate estimation of rotational frequency via time-frequency analysis (TFA). However, the current TFA methods often suffer from issues such as weak time-frequency energy concentration, uncertainty in window width selection, or high computational complexity. Moreover, achieving a high-resolution time-frequency representation (TFR) remains challenging, particularly for strong frequency modulation and amplitude modulation (FM-AM) signals. To overcome these limitations, this article introduces an improved S high-order synchroextracting transform (ISHSET). First, a novel single-parameter adaptive window function is designed to minimize the computational complexity while enhancing time-frequency energy concentration. Subsequently, an iterative estimator capable of estimating high-order instantaneous frequency (IF) is developed to accurately approximate the actual frequency values. Finally, the synchroextracting framework is incorporated to further elevate the resolution and readability of the TFR. Simulation analysis results indicate that ISHSET achieves a higher resolution, a more accurate and clearer characterization of the time-varying properties, and better noise robustness. Experimental validation through rolling bearing fault cases not only demonstrates the efficacy of the proposed method in estimating rotational frequency but also substantiates its superiority and practicality in extracting fault characteristics from rolling bearings under time-varying rotational speeds.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"170 ","pages":"Pages 288-310"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146000193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic event-triggered mechanism for practical bipartite tracking consensus of uncertain high-order multi-agent systems under signed switching topologies 签名交换拓扑下不确定高阶多智能体系统实际二部跟踪共识的动态事件触发机制。

IF 6.5 2区计算机科学

ISA transactions Pub Date : 2026-03-01 Epub Date: 2026-01-13 DOI: 10.1016/j.isatra.2026.01.019

Jie Li, Yu Zhang

引用次数: 0

Fully distributed adaptive dynamic event-triggered secure consensus of lipschitz nonlinear multiagent systems under DoS attacks DoS攻击下lipschitz非线性多智能体系统的全分布式自适应动态事件触发安全一致性。

IF 6.5 2区计算机科学

ISA transactions Pub Date : 2026-03-01 Epub Date: 2026-01-28 DOI: 10.1016/j.isatra.2026.01.032

Lili Wang , Shiming Chen

引用次数: 0