2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS)最新文献_第8页

Positioning aiding using LiDAR in GPS signal loss scenarios 在GPS信号丢失情况下使用激光雷达进行定位辅助

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779060

S. Krupinski, F. Maurelli

引用次数: 3

Trajectory Tracking and Obstacle Avoidance Control of Unmanned Underwater Vehicles Based on MPC 基于MPC的无人潜航器轨迹跟踪与避障控制

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779160

Bing Sun, Wei Zhang, Aiguo Song, Xixi Zhu, Daqi Zhu

{"title":"Trajectory Tracking and Obstacle Avoidance Control of Unmanned Underwater Vehicles Based on MPC","authors":"Bing Sun, Wei Zhang, Aiguo Song, Xixi Zhu, Daqi Zhu","doi":"10.1109/USYS.2018.8779160","DOIUrl":"https://doi.org/10.1109/USYS.2018.8779160","url":null,"abstract":"To solve the problem of autonomous obstacle avoidance in unmanned underwater vehicle (UUV) trajectory tracking, the model predictive control algorithm is applied to design obstacle avoidance controller from the point of view of trajectory re-planning. Deal with the reference target position, the obstacle information and the actual state information of the underwater vehicle, the obstacle avoidance controller plans a local reference trajectory which can avoid the obstacles. Based on the study of kinematics control, the trajectory tracking and obstacle avoidance control at the dynamic level is further expanded. Focusing on the modeling uncertainty and current disturbance in underwater environment, a model prediction and sliding mode cascaded control algorithm for UUV trajectory tracking is proposed. Considering about the constraint ability of model predictive control and the robustness of sliding mode control algorithm, the controller can realize robust trajectory tracking and obstacle avoidance control of underwater vehicle. The simulation results show that the proposed algorithm can effectively solve the speed jump and thruster saturation problem, and realize the smooth and stable trajectory tracking and obstacle avoidance control.","PeriodicalId":299885,"journal":{"name":"2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115971766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Nonlinear disturbance observer-based finite-time Trajectory Tracking Control of Unmanned Underwater Vehicles 基于非线性扰动观测器的无人潜航器有限时间轨迹跟踪控制

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779108

Ma Chuan, Liu Yan Cheng

引用次数: 0

Novel data-driven performance degradation state monitoring of rolling bearing 新型数据驱动的滚动轴承性能退化状态监测

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779034

Yiwei Cheng, Haiping Zhu, Jun Wu, Zuoyi Chen, Guoqiang Li

引用次数: 0

Research on Hydrodynamic Interference of a DSRV and a Wrecked Submarine 水下潜航器与失事潜艇的水动力干扰研究

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779109

Hao Tan, Duanfeng Han, L. Ju, H. Zhu, Yiran Miao

{"title":"Research on Hydrodynamic Interference of a DSRV and a Wrecked Submarine","authors":"Hao Tan, Duanfeng Han, L. Ju, H. Zhu, Yiran Miao","doi":"10.1109/USYS.2018.8779109","DOIUrl":"https://doi.org/10.1109/USYS.2018.8779109","url":null,"abstract":"In this paper, the viscous flow method based on Computational Fluid Dynamics (CFD) is used to simulate the hydrodynamic interaction of the Deep Submergence Rescue Vehicle (DSRV) involved in the rescue of a wrecked submarine. As the object of study, the drag of the DSRV moving in unbounded flow field is numerically calculated and the calculation results are compared with the experimental values to validate the accuracy of the numerical method. When the DSRV approaches the wrecked submarine in a positive flotation in quasi-static way, the effects of different inflow velocities and the distance between the two objects on the DSRV’s drag, lift and pitching moment are simulated and monitored. The results show that when the DSRV is far away from the wrecked submarine, it is subject to the repulsive force from the submarine; when the distance is gradually reduced, the repulsive force is reduced until becoming suction; when the two objects are docking, the DSRV is subjected to the repulsive force from the submarine. This study will provide a reference for the operation of DSRV drivers.","PeriodicalId":299885,"journal":{"name":"2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS)","volume":"250 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115005720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Semi-Supervised Fault Diagnosis Framework for a Gearbox Based on Generative Adversarial Nets 基于生成对抗网络的齿轮箱半监督故障诊断框架

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8778851

Pengfei Liang, C. Deng, Jun Wu, Zhixin Yang, Yuanhang Wang

{"title":"A Semi-Supervised Fault Diagnosis Framework for a Gearbox Based on Generative Adversarial Nets","authors":"Pengfei Liang, C. Deng, Jun Wu, Zhixin Yang, Yuanhang Wang","doi":"10.1109/USYS.2018.8778851","DOIUrl":"https://doi.org/10.1109/USYS.2018.8778851","url":null,"abstract":"It is very significant to realize effective fault diagnosis of a gearbox in modern industrial systems. Undeniably, the traditional intelligent fault diagnosis methods such as back propagation (BP) neural network, recurrent neural network (RNN), extreme learning machine (ELM), Long Short-Term Memory (LSTM) and convolutional neural network (CNN) might have a satisfactory performance in accuracy. However, the premise of this high accuracy is to add labels to all samples manually, which will undoubtedly increase the cost of failure detection. In this article, a semi-supervised fault diagnosis framework for a gearbox is proposed by utilizing GAN. First of all, fast Fourier transform (FFT) is adopted transform 1-D vibration signals into 2-D frequency spectrograms to fit the input format of GAN. Then, the frequency spectrograms are input into the GAN model to achieve fault diagnosis with few marked samples. Finally, an experiment study is carried out to confirm the excellent result of our approach in accuracy and stability. The results indicate that its performance in stability and accuracy is quite excellent.","PeriodicalId":299885,"journal":{"name":"2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS)","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122771901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Optimum Design of the Hydraulic System with Supercharger in Argo Based on AMESim 基于AMESim的Argo增压器液压系统优化设计

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779042

Fengxiang Guo, Yanjun Liu, Gang Xue, Zhitong Li, Shizhen Li

引用次数: 1

Study on Numerical Maneuverability Prediction Approach of Underwater Vehicles 水下航行器机动性能数值预测方法研究

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8778855

Changli Yu, Miao Dong, X. Zhang

引用次数: 1

Influence of polymer additive on flow past an underwater slender body 聚合物添加剂对水下细长体流动的影响

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8778921

Ruyi Hou, Sai Peng, Y. Xiong, Dan Yang

引用次数: 0

A Long-stroke Pushing and Rotating Device for Seafloor Natural Gas Hydrate Pressure Core 海底天然气水合物压力岩心长冲程推转装置

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779156

Ziqiang Ren, Jia-wang Chen, Jing Xiao, Hao Wang, Yue Huang, Qiaoling Gao, C. Cao

{"title":"A Long-stroke Pushing and Rotating Device for Seafloor Natural Gas Hydrate Pressure Core","authors":"Ziqiang Ren, Jia-wang Chen, Jing Xiao, Hao Wang, Yue Huang, Qiaoling Gao, C. Cao","doi":"10.1109/USYS.2018.8779156","DOIUrl":"https://doi.org/10.1109/USYS.2018.8779156","url":null,"abstract":"Because of the special occurrence condition of natural gas hydrate, it is important for scientists to study sample of natural gas hydrate under in-situ pressure. This paper mainly introduces a long-stroke pushing and rotating device for natural gas hydrate pressure core, which is an important component of the Analysis and Transfer System of Seafloor Natural Gas Hydrate Pressure Core. Then the working process of this device is described in detail. In addition, the static analysis and modal analysis on the integrity of the device with or without the auxiliary support slider structure are carried out by finite element analysis software ANSYS workbench, and the deflection of the two structures due to their own weight is obtained in the static state, and the first six order natural frequencies of the two structures are obtained. The research results show that this device with auxiliary supporting slider structure produces less deflection; moreover, the natural frequency of the device with auxiliary supporting slider structure is significantly higher than that device without auxiliary supporting slider structure. Therefore, it can be known that the device with the support slider structure has a large rigidity, whose stability is better. Finally, the stability is verified by experiments.","PeriodicalId":299885,"journal":{"name":"2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133615621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0