Development of Techniques for Improving Piston Cooling Performance (Second Report)~Oil Movement and Heat Transfer Simulation in Piston Cooling Channel With CFD
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Piston (optics)
The main objective of this study is to explore the analysis of a piston with design change to attain less volume and better efficiency. This has entailed performing a detailed thermal analysis. The study deals with dynamic, model and transient thermal analysis.
A proper Finite Element Model is developed using CAD software Pro/E Wildfire 5.0. In this project we are doing the material optimization in the piston. This project we are designed the 3D model of the axle by using pro-e software and the analysis taken by different materials of the bearing and the analysis taken by the ANSYS software. This project we are analyzing the pressure acting on the piston by the two materials. Presently the piston is made by the material of AL-Mg-Si, this project we are testing the same load under SILUMIN. Then the thermal analysis is done to determine the total heat flux in the existing piston for the given temperature conditions. The temperature acting on the surface of the piston is applied. The results were also used to determine the total heat flux for a particular material.
Piston (optics)
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With the increase of strengthening degree, parts of vehicle engines are required to bear much heavier mechanical and thermal loads. Great importance is attached to the LHR (Low Heat Rejection) technique to reduce the thermal loads and heat transfer in the field of internal combustion engines. Bearing heavy mechanical and thermal loads, the piston is one of the most complicated part of engines and it is the key point of the LHR technique application. This paper presents the research work of LHR piston and its structure. The three-dimensional FEM (Finite Elements method) analysis of the piston was offered, its temperatures field distribution and the amount of heat transfer were calculated and a large amount of significant data were obtained. An experimental investigation of temperatures on the LHR Piston was made by wiry surface thermocouples and thin film thermocouples to prove the effectiveness of FEA. The LHR piston greatly reduce the heat transfer. This paper may provide some insights for the LHR piston design.
Piston (optics)
Thermocouple
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Studying thermal load of the piston of a contrapositive cam engine may provide theory for strength analysis and strucure optimization in engine development and innovation.By using finite element method(FEM) we establish a thermal model,define the boundary condition and simulate the temperature field of the piston.The results show that the temperature of whole piston is overheated,so structural parameter optimization of the piston is necessary to enhance its wearing resistance.
Piston (optics)
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Piston (optics)
Piston ring
Crank
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Material Combinations for the Piston-Cylinder Interface of Axial Piston Machines: A Simulation Study
Axial-piston pumps and motors which operate at high pressures (above 380 bar) typically incorporate a copper-alloy bushing paired with a steel piston. Manufacturers have a desire to eliminate such nonferrous heavy metals from their designs to reduce manufacturing complexity and cost. This paper explores possible alternatives to this material combination at high pressures. Simulations incorporating thermal and elastic material properties are computed using a Fluid Structure Thermal Interaction (FSTI) model. The results of simulation reveal how material properties interact to affect fluid film thickness and pressure generation during pump operation. An understanding of these phenomena points the way toward the selection of novel material combinations to improve the behavior of the piston/cylinder interface.
Bushing
Piston (optics)
Pneumatic cylinder
Piston rod
Position-sensing hydraulic cylinder
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Piston (optics)
Reciprocal
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The piston is the key parts of internal-combustion engine,in order to ensure the pistons don't be jammed in thermal deformation environment,piston skirt department should be made of a certain shapes in the cold.It's that convex-to-ellipse will gradually replacing the traditional cylinder piston.According to the characteristic of piston structure,Analyzes it's machining process,and gives a comparison on the processing method of piston.Finally summarizes the existing piston machining technology of deficiencies.
Piston (optics)
Ellipse
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Ascertains the heat transfer boundary condition.Building 3-dimensional model of the 16V280ZJA diesel engine piston and calculating the temperature fields of piston under the thermal loads are given applying the PRO/E software.And then,we know the key positions'temperature during the operations.As to engineer and technologist,the temperature values of specific points in piston space is requisite to calculate the thermal deformation and stress fields and provide a reference for further improving the structure and optimizing the design of such a combined-piston.
Piston (optics)
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The temperature field of the piston in YZ4105QF diesel engine is experimentally measured by using the hardness plug method.And the software Pro/E is used to set up a geometry model of the piston.The temperature field of the piston model is calculated by FEA software Hypermesh and ANSYS.The results provide supports for the further optimizing of the piston.
Piston (optics)
Spark plug
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As we are known numerous reciprocating parts is contained in IC Engine which are responsible for giving the motion. The abnormal piston working is given poor performance in comparison of other parts. The main intention of this research is to investigate and analyse the stress distribution of automobile piston at definite engine Condition. In this paper pressure (Mechanical), thermal (Heat) and thermo-mechanical analysis is accomplished by help of CAE Tool. The constraint used for the analysis is pressure of operating gas, temperature and material properties of piston. In this research piston are designed for a single cylinder four stroke petrol engine using CATIA V5R20 and analysis is performed by ANSYS 14. Two different material are induced in this investigation. First one is Aluminium alloy and second is Cast Iron. In this end of the Results are shown and a comparison is made to find the most suited material for splendour automobile vehicle piston by various CAE analyses.
Piston (optics)
Four-stroke engine
Reciprocating motion
Cylinder head
Stroke
Two-stroke engine
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