Simulation Analysis of Splat Deposition in Plasma Spray Forming

2011 ◽  
Vol 291-294 ◽  
pp. 505-508
Author(s):  
Zi Yu Zhao ◽  
Bi Bo Xia ◽  
Su Zhi Zhang ◽  
Li Wang
Keyword(s):  
Numerical Simulation ◽  
Plasma Spray ◽  
Particle Deposition ◽  
Simulation Analysis ◽  
Spray Forming ◽  
Impact Factors ◽  
Ansys Software ◽  
Coating Quality ◽  
Plasma Spray Forming ◽  
The Impact

Splat deposition is an important part influencing coating quality in plasma spray forming. Flatten behavior of a single Ni droplet falling on a smooth substrate is evaluated by numerical simulation of ANSYS software, this paper meanwhile researches a single Ni particle deposition in the surface of flattened Al2O3 sheet and thin Al particles, the impact factors of particles flattening and the mechanism of the interaction between particles are also studied. The results have benefit to improving the coating porosity and bond strength between particles.

Thermomechanical Simulation of Single Splat Solidification and Cooling in Plasma Spray Forming

2010 ◽  
Vol 102-104 ◽  
pp. 719-723
Author(s):  
Liang Rong Zhu ◽  
Hao Ping Zeng ◽  
Wen Ji Xu ◽  
Hong You Li
Keyword(s):  
Residual Stress ◽  
Plasma Spray ◽  
Steel Substrate ◽  
Element Model ◽  
Spray Forming ◽  
Plasma Spray Forming ◽  
Initial Stage ◽  
Minimum Residual ◽  
Thermomechanical Simulation ◽  
Stress States

Mechanical strength and service life of the coatings manufactured by plasma spray forming are significantly reduced by residual stresses. A 2D finite element model constructed for temperature and residual stress simulation of a single stainless steel splat solidifying and cooling on the carbon steel substrate is presented in this paper. Simulated results show that the temperature of the splat rim is higher than that of the central part during the initial stage of solidification, and the temperature difference between the two parts reverse thereafter. The minimum residual stress locates at the rim of the top surface of the splat, and the maximum residual stress, which decreases when the substrate is preheated to a higher temperature, situates at the rim of the interface. Stresses appear as tensile stresses within the splat and compressive stresses within the substrate. The research can provide quantitative understanding of the temperature and residual stress states at the splat level.

Plasma-Spray-Forming of Alumina Matrix Composite Reinforced with Metal Thin Wire

2000 ◽  
Author(s):  
S. Sodeoka ◽  
T. Inoue ◽  
M. Suzuki
Keyword(s):  
Plasma Spray ◽  
Spray Forming ◽  
Filament Winding ◽  
Atmospheric Plasma ◽  
Thin Wire ◽  
Alumina Matrix ◽  
Plasma Spray Forming ◽  
Inconel 600 ◽  
The Matrix ◽  
The Wire

Abstract Alumina matrix composites reinforced with metal thin wire (Inconel-600) were successfully fabricated by plasma spray forming. The atmospheric plasma sprayed matrix layers and wire layers arranged by filament-winding technique were piled up alternately. Though the matrix and the wire were partially bonded only on the side which sprayed particles came flying to, a solid structure was obtained by this technique. Spraying in one direction perpendicular to the substrate made peculiar V-shape pores around the wires, but tilting the torch was effective to reduce the pores. The flexural strength of composite did not increase in spite of some crack deflections on the fracture surface. Owing to the wire pullout, however, the composite exhibited a remarkably higher apparent fracture energy than that of monolithic alumina ceramics.

The Numerical Simulation Analysis of Irregular Frame Structure Dynamic Characteristics

2013 ◽  
Vol 739 ◽  
pp. 373-375
Author(s):  
Fang Zhang
Keyword(s):  
Numerical Simulation ◽  
Dynamic Characteristics ◽  
Simulation Analysis ◽  
Structure Design ◽  
Frame Structure ◽  
Ansys Software ◽  
Mass Percentage ◽  
Structure Dynamic ◽  
Characteristics Analysis ◽  
Dynamic Characteristics Analysis

A bump of irregular frame structure as an example, the use of ANSYS software, the structure dynamic characteristics analysis, given the cycle ratio and modal participation mass percentage, as the bump of irregular frame structure design reference.

The Impact on the Pier of Shaped Charge Ice-Breaking and Numerical Simulation Analysis

2014 ◽  
Vol 501-504 ◽  
pp. 1883-1887
Author(s):  
Wen Yuan Meng ◽  
Jia Qing Li ◽  
Ying Kui Guo ◽  
Guan Chao Xu ◽  
Jun Wei Guo
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Maximum Stress ◽  
Simulation Analysis ◽  
Shaped Charge ◽  
Ice Water ◽  
The Impact

In the process of shaped charge ice-breaking , the response of piers is great under the impact of air, ice, water etc, and relates to integral security of the bridge. For the impact on the pier with burst points of the different distances is simulated by ANSYS / DYNA software, summarizes the impact on the pier of shaped charge ice-breaking, and obtains the maximum stress curves of the pier at different distances. Simultaneously, the paper analyses critical damaging- model of the C30 reinforced concrete piers in detail. The conclusion has a major role in guiding when shaped charge ice-breaking appears.

Plasma spray forming metals, intermetallics, and composites

JOM ◽  
1993 ◽  
Vol 45 (7) ◽  
pp. 42-49 ◽  
Author(s):  
Sanjay Sampath ◽  
Herbert Herman
Keyword(s):  
Plasma Spray ◽  
Spray Forming ◽  
Plasma Spray Forming

Structure Design of the ANSYS-Based SLC9-2-Type Direct Reading Current Meter

2014 ◽  
Vol 926-930 ◽  
pp. 1412-1416
Author(s):  
Shi Ming Wang ◽  
Zhen Wang ◽  
Qing Yi He ◽  
Jie Zhang ◽  
Yu Qing Zhang
Keyword(s):  
Water Flow ◽  
Flow Measurement ◽  
Simulation Analysis ◽  
Flow Speed ◽  
Structure Design ◽  
Measurement Instruments ◽  
Ansys Software ◽  
Direct Reading ◽  
Simulation Results ◽  
The Impact

SLC9-2-type direct reading; current meter is a lightweight, reliable, affordable, low consumption of the new flow measurement instruments, available for measuring the different depth of water flow speed and direction in the ocean, bays, rivers, lakes, reservoirs, estuaries . By improving its structure, using the simulation analysis of ANSYS software, it analyzes the new structure on the impact of lowing start. Simulation results for the actual SLC9-2-type direct reading current meter provide guidance for new design.

Numerical Simulation Analysis of Collision between Ship and Steel Sheet Pile Quay-Wall

2015 ◽  
Vol 744-746 ◽  
pp. 1175-1179 ◽  
Author(s):  
Peng Liu ◽  
Hong Wang ◽  
Chao Zhu
Keyword(s):  
Numerical Simulation ◽  
Steel Sheet ◽  
Impact Force ◽  
Simulation Analysis ◽  
Sheet Pile ◽  
Time Curve ◽  
Finite Element Software ◽  
Quay Wall ◽  
Force Time ◽  
The Impact

The impact process of 50000t ship and steel sheet pile bulkhead is simulated by finite element software ANSYS/LS-DYNA. This article acquires the impact force-time curve, equivalent force-time curve of steel sheet pile and the pressure-time curve of breast wall. Comparing the impact force of numerical simulation with the result of ship-bridge collision specifications, and general rules and characteristics are obtained. At the same time, put forward some measures to prevent the damage of wharf structure under the ship of large velocity impact, which provide theoretical references during the design, maintenance, and transformation of similar wharf.

Numerical Simulation of Ship-Ship Interactions in Waves

2019 ◽  
Author(s):  
Xueshen Xie ◽  
Yuxiang Wan ◽  
Qing Wang ◽  
Hao Liu ◽  
Dakui Feng
Keyword(s):  
Numerical Simulation ◽  
Degrees Of Freedom ◽  
Simulation Analysis ◽  
Turbulence Models ◽  
Body Motion ◽  
Structured Grid ◽  
Six Degrees Of Freedom ◽  
Unsteady Rans ◽  
Small Ship ◽  
The Impact

Abstract A numerical simulation of the hydrodynamic interaction and attitude of a ship and two ships of different sizes navigating in parallel in waves were carried out in this paper. The study of the two ships navigating in parallel is of great significance in marine replenishment. This paper used in house computational fluid dynamics (CFD) code to solve unsteady RANS equation coupled with six degrees of freedom (6DOF) solid body motion equations. URANS equations are solved by finite difference method and PISO algorithm. Structured grid with overset technology have been used to make computations. Turbulence models used the Shear Stress Transport (SST) k-ω model. The method used for free surface simulation is single phase level set. In this paper, two DTMB 5415 with different scales are selected for simulation analysis. This paper analyzed the impact of the big ship on the small ship when the two ships were navigating in parallel. This paper also analyzed the relationship between interaction and velocity between hulls, which has certain guiding significance for the ship’s encounter on the sea.

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