Hydroelastic simulation of the acoustic behaviour of ship-propeller configurations with and without cavitation
有空化和无空化的船舶螺旋桨结构的声学行为的水弹性模拟
基本信息
- 批准号:344826971
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2017
- 资助国家:德国
- 起止时间:2016-12-31 至 2021-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Recently, noise pollution in the oceans due to ships has raised a lot of attention from the corresponding authorities. It is expected that the shipbuilding industry will have to take according actions - already at the design stage - for the sake of noise reduction, and also to comply with respective regulations that are expected in the near future.Having developed a numerical simulation approach that allows for a detailed investigation of the acoustic signature of flexible marine propellers in the first phase of the project, we aim to employ this approach in the scope of an optimization algorithm in the second phase of the project. The developed partitioned coupling of boundary elements (for the fluid sub-problem) and high-order finite elements (for the structural sub-problem) in combination with an acoustic evaluation based on the Ffowcs Williams-Hawking equation yields very efficient simulations. However, the fully coupled solution approach is still too costly to be used directly for optimization purposes. Accordingly, the focus of the second phase lies on the development of a suitable optimization process that incorporates uncoupled simulations, which will greatly reduce the computation time. Further, we plan to consider composite materials, as they offer a higher flexibility when designing propellers with passively adaptive deformation behavior that reduces the radiated noise.Accordingly, we aim at a multi-stage optimization process, where in a first stage, uncoupled hydrodynamic simulations are used to find optimal deformed shapes for propellers without actually considering their dynamic behavior. In a second stage, uncoupled structural simulations shall be used to find an initial propeller configuration (shape and composite structure), which yields the deformed shapes from the first stage when the hydrodynamic loads are applied. These two stages yield suitable initial guesses for a final stage, where coupled FSI simulations are used to further optimize the initial propeller configuration.
近年来,船舶造成的海洋噪声污染引起了有关部门的高度关注。预计造船业必须在设计阶段就采取相应的措施来降低噪音,并遵守预计在不久的将来的相关法规。开发了一种数值模拟方法,允许为了详细研究项目第一阶段柔性船用螺旋桨的声学特征,我们的目标是在项目第二阶段的优化算法范围内采用这种方法。所开发的边界元(对于流体子问题)和高阶有限元(对于结构子问题)的分区耦合与基于 Ffowcs Williams-Hawking 方程的声学评估相结合,可以产生非常有效的模拟。然而,完全耦合的解决方案方法仍然成本太高,无法直接用于优化目的。因此,第二阶段的重点在于开发合适的优化过程,其中包含非耦合模拟,这将大大减少计算时间。此外,我们计划考虑复合材料,因为它们在设计具有被动自适应变形行为的螺旋桨时提供了更高的灵活性,从而降低了辐射噪声。因此,我们的目标是多阶段优化过程,其中在第一阶段进行非耦合流体动力学模拟用于寻找螺旋桨的最佳变形形状,而无需实际考虑其动态行为。在第二阶段,应使用非耦合结构模拟来找到初始螺旋桨配置(形状和复合结构),当施加水动力载荷时,该配置会产生第一阶段的变形形状。这两个阶段为最后阶段提供了合适的初始猜测,其中耦合 FSI 模拟用于进一步优化初始螺旋桨配置。
项目成果
期刊论文数量(7)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Advanced Methods for Partitioned Fluid-Structure Interaction Simulations Applied to Ship Propellers
应用于船舶螺旋桨的分区流固耦合模拟的先进方法
- DOI:10.1115/omae2022-80507
- 发表时间:2022
- 期刊:
- 影响因子:0
- 作者:J. Lund;D. Ferreira González;L. Radtke;M. Abdel-Maksoud;A. Düster
- 通讯作者:A. Düster
A partitioned solution approach for the simulation of dynamic behaviour and acoustic signature of flexible cavitating marine propellers
柔性空化船用螺旋桨动态行为和声学特征仿真的分区求解方法
- DOI:10.1016/j.oceaneng.2019.106854
- 发表时间:2020
- 期刊:
- 影响因子:5
- 作者:T. Lampe;L. Radtke;M. Abdel-Maksoud;A. Düster
- 通讯作者:A. Düster
Optimally Blended Spectral Elements in Structural Dynamics: Selective Integration and Mesh Distortion
结构动力学中的最佳混合光谱元素:选择性积分和网格畸变
- DOI:10.1142/s0219876221500420
- 发表时间:2021
- 期刊:
- 影响因子:1.7
- 作者:L. Radtke;D. Müller;A. Düster
- 通讯作者:A. Düster
Validation of a partitioned fluid-structure interaction simulation for turbo machine rotors
涡轮机转子分区流固耦合仿真的验证
- DOI:10.1080/17445302.2022.2069389
- 发表时间:2022
- 期刊:
- 影响因子:2.1
- 作者:J. Lund;D. Ferreira González;J. C. Neitzel-Petersen;L. Radtke;M. Abdel-Maksoud;A. Düster
- 通讯作者:A. Düster
Partitioned simulation of the acoustic behavior of flexible marine propellers using finite and boundary elements
使用有限元和边界元对柔性船用螺旋桨的声学行为进行分区模拟
- DOI:10.1002/pamm.202000315
- 发表时间:2020
- 期刊:
- 影响因子:0
- 作者:L. Radtke;T. Lampe;M. Abdel-Maksoud;A. Düster
- 通讯作者:A. Düster
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Professor Dr.-Ing. Moustafa Abdel-Maksoud其他文献
Professor Dr.-Ing. Moustafa Abdel-Maksoud的其他文献
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{{ truncateString('Professor Dr.-Ing. Moustafa Abdel-Maksoud', 18)}}的其他基金
Minimization of undesired wave reflections at the boundaries of the computational domain in flow simulations with free surface based on the Navier-Stokes equations
基于纳维-斯托克斯方程的自由表面流动模拟中计算域边界处的不良波反射最小化
- 批准号:
321791315 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grants
Development of numerical and experimental methods for resolving of concentrated vortex structures
开发解决集中涡结构的数值和实验方法
- 批准号:
263936466 - 财政年份:2015
- 资助金额:
-- - 项目类别:
Research Grants
Simulation von Kaviationseffekten in Wirbelströmungen
涡流空化效应的模拟
- 批准号:
28668472 - 财政年份:2006
- 资助金额:
-- - 项目类别:
Research Grants
Ein Verfahren zur Optimierung von aus Mehrkomponenten bestehenden Schiffsantrieben
优化由多个组件组成的船舶驱动器的过程
- 批准号:
5451362 - 财政年份:2005
- 资助金额:
-- - 项目类别:
Research Grants
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