本文给出了一种以模块化生产系统(MPS系统,Modular Production System)为实训设备的机电设备综合实训项目设计方案。实践证明,该方案能够全面提升学生机电一体化技术的综合应用能力和设备维修维护技能,并能更好地培养学生的生产管理能...本文给出了一种以模块化生产系统(MPS系统,Modular Production System)为实训设备的机电设备综合实训项目设计方案。实践证明,该方案能够全面提升学生机电一体化技术的综合应用能力和设备维修维护技能,并能更好地培养学生的生产管理能力、实践动手能力以及团队协作能力,具有一定的借鉴和参考价值。展开更多
A numerical model has been developed to study sloshing of turbulent flow in a tank with elastic baffles. The Moving-Particle Semi-implicit method(MPS) is a kind of meshless Lagrangian calculation method. The large edd...A numerical model has been developed to study sloshing of turbulent flow in a tank with elastic baffles. The Moving-Particle Semi-implicit method(MPS) is a kind of meshless Lagrangian calculation method. The large eddy simulation(LES) approach is employed to model the turbulence by using the Smagorinsky Sub-Particle Scale(SPS)closure model. This paper uses MPS-FSI method with LES to simulate the interaction between free surface flow and a thin elastic baffle in sloshing. Then, the numerical model is validated, and the numerical solution has good agreement with experimental data for sloshing in a tank with elastic baffles. Furthermore, under external excitations,the MPS is applied to viscous laminar flow and turbulent flow, with both the deformation of elastic baffles and the wave height of the free surface are compared with each other. Besides, the impact pressure with/without baffles and wave height of free surface are investigated and discussed in detail. Finally, preliminary simulations are carried out in the damage problem of elastic baffles, taking the advantage of the MPS-FSI method in computations of the fluid–structure interaction with large deformation.展开更多
文摘本文给出了一种以模块化生产系统(MPS系统,Modular Production System)为实训设备的机电设备综合实训项目设计方案。实践证明,该方案能够全面提升学生机电一体化技术的综合应用能力和设备维修维护技能,并能更好地培养学生的生产管理能力、实践动手能力以及团队协作能力,具有一定的借鉴和参考价值。
基金financially supported by the National Natural Science Foundation of China(Grant Nos.51479116 and 11272213)
文摘A numerical model has been developed to study sloshing of turbulent flow in a tank with elastic baffles. The Moving-Particle Semi-implicit method(MPS) is a kind of meshless Lagrangian calculation method. The large eddy simulation(LES) approach is employed to model the turbulence by using the Smagorinsky Sub-Particle Scale(SPS)closure model. This paper uses MPS-FSI method with LES to simulate the interaction between free surface flow and a thin elastic baffle in sloshing. Then, the numerical model is validated, and the numerical solution has good agreement with experimental data for sloshing in a tank with elastic baffles. Furthermore, under external excitations,the MPS is applied to viscous laminar flow and turbulent flow, with both the deformation of elastic baffles and the wave height of the free surface are compared with each other. Besides, the impact pressure with/without baffles and wave height of free surface are investigated and discussed in detail. Finally, preliminary simulations are carried out in the damage problem of elastic baffles, taking the advantage of the MPS-FSI method in computations of the fluid–structure interaction with large deformation.
