Design and simulation analysis of trimaran bulkhead based on topological optimization

Jia, Dejun; Li, Fanchun; Zhang, Cong; Li, Lanxin

doi:10.1016/j.oceaneng.2019.106304

Cited by 9 publications

(4 citation statements)

References 11 publications

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“…(1) Comparing SVR1 and SVR2 explains that the use of multiscale time-series feature maps should occur after tem (SVR2); instead of directly fusing in the feature dimension (SVR1), the main reason is that small-scale information will affect the resolution of large-scale information. (2) Comparing BSN-BASeliNe and SVR, it fully proves that SVR, a sequential action detection algorithm based on fpN, has a significant performance improvement; the main reason is the way of generating proposals at different resolutions; it can improve the recall rate of the action when the target action sequence length varies widely [21,22]. In order to better extract video features, take the output (512, 1536) before the full connection in tSN as the input of the sequential action proposal module; using 2D convolution to jointly model the timing and channel characteristics, the experimental results obtained are shown in Table 2.…”

Section: Experimental Results and Analysismentioning

confidence: 84%

Action Recognition, Tracking, and Optimization Analysis of Training Process Based on SVR Model and Multimedia Technology

Zhong

2022

Advances in Multimedia

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In order to explore the action recognition, tracking, and optimization analysis of the training process based on the SVR model and multimedia technology, the author proposes based on the radial basis function model, researching a new surrogate model technology-support vector regression (SVR). We first introduce the basic principles of SVR, select the parameters of SVR, and then elaborate the basic steps of SVR modeling. Then, we design and optimize application examples through numerical example multimedia technology; the validity of the support vector regression method is verified. Experimental results: the comparison of SVR1 and SVR2 shows that the utilization of multiscale timing feature maps should occur after tem (SVR2) rather than being directly fused in the feature dimension (SVR1), mainly because small-scale information affects the resolution of large-scale information; on data sets such as ActivityNet, in order to verify the effectiveness of SVR and DR-Dvc algorithms, the performance of the proposed algorithm and the baseline before improvement and the current mainstream algorithm are respectively compared. Experimental results show the proposed algorithm has a significant performance improvement compared to before the improvement; at the same time, it is better than most current mainstream algorithms, which proves the feasibility and effectiveness of the algorithm. Describing the introduction of regression can effectively improve the performance of sequential action proposals and event description algorithms, and compared with the current mainstream methods, it has certain performance advantages.

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Section: Experimental Results and Analysismentioning

confidence: 84%

Action Recognition, Tracking, and Optimization Analysis of Training Process Based on SVR Model and Multimedia Technology

Zhong

2022

Advances in Multimedia

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Section: Not Implemented Properlymentioning

confidence: 99%

“…For the preliminary design of the trimaran, the state of the art was taken into account. Recent investigations on the design of trimaran have researched the structure [35][36][37][38], the outrigger layout [39][40][41][42], optimization to reduce resistance [42][43][44][45], seakeeping and stability performances [46][47][48], and the design method itself [49][50][51]. From a structural point of view, Daidola et al [35] discussed preliminary structural design procedures for a large highspeed sealift trimaran, while Tang et al [36] applied structure monitoring technology, and Jia et al [37] proposed a lightweight design of a trimaran bulkhead using structural topology optimization.…”

Section: Not Implemented Properlymentioning

confidence: 99%

“…Recent investigations on the design of trimaran have researched the structure [35][36][37][38], the outrigger layout [39][40][41][42], optimization to reduce resistance [42][43][44][45], seakeeping and stability performances [46][47][48], and the design method itself [49][50][51]. From a structural point of view, Daidola et al [35] discussed preliminary structural design procedures for a large highspeed sealift trimaran, while Tang et al [36] applied structure monitoring technology, and Jia et al [37] proposed a lightweight design of a trimaran bulkhead using structural topology optimization. According to Khoob et al [38], for a wave-piercing trimaran, transverse torsion moments and shear forces are significant in head seas, while transverse bending moments have larger response magnitudes in oblique seas.…”

Section: Not Implemented Properlymentioning

confidence: 99%

See 1 more Smart Citation

Design Process and Advanced Manufacturing of an Aquatic Surface Vehicle Hull for the Integration of a Hydrogen Power Plant Propulsion System

Renau Martínez,

García Peñas,

Ibáñez Arnal

et al. 2024

JMSE

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This article presents the design and manufacturing of a hydrogen-powered unmanned aquatic surface vehicle (USV) hull. The design process comprised three stages: (1) defining the requirements for a preliminary geometry, (2) verifying the hydrodynamic hull performance using computational fluid dynamics (CFD) simulations, and (3) experimentally validating the hydrodynamic hull performance and CFD analysis results through experimental fluid dynamics in a calm water towing tank. The manufacturing process utilized additive manufacturing technologies, such as fused granular fabrication and selective laser sintering, to produce the hull and other components, including the propeller and the rudder; thermoplastic materials with carbon fiber reinforcement were employed. The experimental results demonstrate that the optimized trimaran hull exhibited low hydrodynamic resistance (7.5 N), high stability, and a smooth flow around the hull (up to 2 m/s). The design and manufacturing of the USV hull met expectations from both hydrodynamic and structural perspectives, and future work was outlined to integrate a power plant, navigation system, and scientific equipment.

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A Hollowing Topology Optimization Method for Additive and Traditional Manufacturing Technologies

Barberi

Cucinotta

Raffaele

et al. 2021

Lecture Notes in Mechanical Engineering

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Design and simulation analysis of trimaran bulkhead based on topological optimization

Cited by 9 publications

References 11 publications

Action Recognition, Tracking, and Optimization Analysis of Training Process Based on SVR Model and Multimedia Technology

Action Recognition, Tracking, and Optimization Analysis of Training Process Based on SVR Model and Multimedia Technology

Design Process and Advanced Manufacturing of an Aquatic Surface Vehicle Hull for the Integration of a Hydrogen Power Plant Propulsion System

A Hollowing Topology Optimization Method for Additive and Traditional Manufacturing Technologies

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