2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS)最新文献_第2页

Numerical investigation on the flow past three cylinders in staggered symmetrical arrangement 交错对称布置三圆柱流场的数值研究

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779051

Xiao-Qiu He, Y. Xiong, Dan Yang

引用次数: 1

Performance evaluation of acoustic network for underwater autonomous vehicle in confined spaces 水下自主航行器密闭空间声网络性能评价

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8778974

Siyuan Zheng, Xiuling Cao, Feng Tong, Gangqiang Zhang, Yangze Dong

引用次数: 6

Analysis of Effective Sound Velocity Spatial Characteristic of Typical MUNK Deep Sea Channel 典型蒙克深海航道有效声速空间特性分析

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8778987

Jin-jin Wang, Tao Lin, Jin Fu

引用次数: 0

Influence of FE modeling on ultimate strength of Y-shape stiffened panels under axial compression 有限元模拟对y形加筋板轴压极限强度的影响

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779029

M. Xu, Meng Jia Ren, B. Zhang, J. Pan

引用次数: 0

Multi-AUV SOM Task Allocation Considering Initial Orientation of AUV 考虑AUV初始方向的多AUV SOM任务分配

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8778982

Yun Qu, Daqi Zhu, Mingzhi Chen

引用次数: 2

Platoon Formation Control of USVs With Output Tracking Error Constraints 具有输出跟踪误差约束的无人潜航器编队控制

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8778951

Qingzhao Ye, Shude He, Shi‐Lu Dai

{"title":"Platoon Formation Control of USVs With Output Tracking Error Constraints","authors":"Qingzhao Ye, Shude He, Shi‐Lu Dai","doi":"10.1109/USYS.2018.8778951","DOIUrl":"https://doi.org/10.1109/USYS.2018.8778951","url":null,"abstract":"In this paper, we investigate the platoon formation control problem for a group of unmanned surface vehicles exposed to external time-varying disturbances with output tracking error constraints, where the topology of the communication network is described by a spanning directed tree. To guarantee that the follower could preserve within the communication range between the follower and its predecessor while avoiding the collision with its predecessor, the line-of-sight (LOS) range is required to be constrained. By introducing a desired distance, the constraints on connectivity preserving and collision avoidance could be transformed into the constraints of LOS range error, i.e., the LOS range error is required to stay within a prescribed region composed of two constant bounds. To quantify the transient and steady-state performances of the orientation error and LOS range error, the tan-type barrier Lyapunov functions with exponential decaying boundary functions are employed to guarantee the satisfaction of the prescribed tracking error constraints. Since the vehicle system is exposed to the time-varying disturbances, the disturbance observers are incorporated into the controller such that the robustness of the control system is improved. Based on backstepping procedure, barrier Lyapunov functions, and disturbance observers, robust formation controller is proposed to ensure the prescribed tracking error constraints, i.e., the connectivity preserving as well as the collision avoidance constraints between the follower and its predecessor are also satisfied. Simulation results demonstrate the efficacy of the proposed control scheme.","PeriodicalId":299885,"journal":{"name":"2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS)","volume":"14 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":"126761717","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: 3

Vision-Based Dynamic Positioning System Design and Experiment for an Underwater Vehicle 基于视觉的水下航行器动态定位系统设计与实验

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779234

Chen Li, Jian Gao, Puguo Wu, Lei Feng

引用次数: 2

A hybrid PSO-WG algorithm for AUV path planning in unknown oceanic environment 未知海洋环境下AUV路径规划的混合PSO-WG算法

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779121

Zheping Yan, Jiyun Li, J. Zou, Juan Li, Rong Zhong

引用次数: 0

Hydro-resistance and Running Stability Investigation for Twin Floats Seaplane 双浮筒水上飞机的水阻力及运行稳定性研究

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779210

Miao Huang, Yongsheng Liu, Bin Wu, Xinying Li

{"title":"Hydro-resistance and Running Stability Investigation for Twin Floats Seaplane","authors":"Miao Huang, Yongsheng Liu, Bin Wu, Xinying Li","doi":"10.1109/USYS.2018.8779210","DOIUrl":"https://doi.org/10.1109/USYS.2018.8779210","url":null,"abstract":"Twin floats seaplane requires good resistance and planning stability performance for safe operations in rough water. The hydro-resistance and running stability of floats varies significantly depending on their float hull forms, the coupling influence of aerodynamic and hydrodynamic. Four float hulls that have almost the same displacement and principal dimension are designed and the hydrodynamic characteristics including water resistance and stability limits of those hulls are estimated by high-speed model tests, in which only single float model is used and aero-lift and moment are simulated, this model test method is sufficient to gain characteristics and stability limits and convenient to conduct especially during the float design process. As to the CFD computation of planning problem, a kind of method which is divided into two phase is brought out, in the first phase water viscidity is ignored so we get a relatively exact computation results of trim and heave, this results are treat as the initial status for the second phase so mesh grid distortion or stretch could be avoided, result in computation efficiency and accuracy increase. As compared to the test results, the error of hydro-resistance and trim are within 20% and 15% respectively.","PeriodicalId":299885,"journal":{"name":"2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS)","volume":"os-42 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":"130411414","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

Explanation for Fluid Effect on Flexural Vibration of a Finite Submerged Cylindrical Shell with Modal Added Mass 流体对含模态附加质量有限淹没圆柱壳弯曲振动影响的解释

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI: 10.1109/USYS.2018.8779198

Peng Wang, Tianyun Li, Xiang Zhu

引用次数: 0