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Fluid coupling
Retrofitting a coupling should not be an afterthought when upgrading a system. Couplings are an integral part of a drive train and should be a major consideration. This article discusses guidelines that should be used when replacing gear couplings with diaphragm couplings. Reviewed are the coupling selection process: how and to what extent the desired diaphragm couplings should be matched to the gear coupling. Also discussed are the details of coupling modification that can be made to accommodate system performance. Included are how changes in materials, configuration and design can help tune a diaphragm coupling to meet the characteristics of the previous gear couplings. The article also discusses the retrofit process for a specific syngas train at International Minerals and Chemical Corp., Sterlington, La.
Retrofitting
Diaphragm (acoustics)
Fluid coupling
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In this paper has been shown to generate parameter model of a friction plate coupling on the basis of selection type coupling with all the characteristic of the designing details and calculation. It is made a parametric model of a friction plate coupling those changes by entering the type of coupling. Based on the entered data to generate a calculation finished friction plate coupling. Based on [1] that describe each type of coupling and provides an example of the calculation with the corresponding tables, in the paper was made parametric model of friction coupling. The calculation is made in Excel and the parameter associated with the CAD system based on parametric modeling features. Generating the appropriate value type friction coupling in Excel, CAD system parameter adjusts the model generated the type of coupling. It is also designed to connect Excel with Word so that the results of the calculation are automatically changed by changing the type of coupling in Excel.
Parametric model
Basis (linear algebra)
Coupling parameter
Fluid coupling
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Particle (ecology)
Fluid Simulation
Solid surface
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The gear coupling has been in existence for over 50 years. As advances in marine propulsion have occurred, so have advances in gear couplings. There are many variables in gear couplings that can affect their characteristics, including tooth design, materials, and lubrication methods. All couplings react on connected equipment. A system designer must consider these reactions when designing a system. If a gear coupling is chosen, there are many characteristics which are difficult to predict; therefore, one must conservatively estimate the maximum forces and moments that can be anticipated. This usually will make the system rather large and heavier than may be required. The diaphragm coupling usually has more predictable coupling characteristics, which can make a designer's life easier. This paper compares the characteristics of diaphragm couplings versus the gear (dental) type couplings in marine applications. Applications of couplings for main propulsion and auxiliary equipment are discussed. The methods used to analyze the design and calculate the forces and moments generated by both the gear coupling and the diaphragm coupling are also provided. These analyses are used to show that the forces and moments generated by a diaphragm coupling are not only predictable, but are usually lower than those of a gear coupling. The paper shows that a diaphragm coupling can provide a more predictable, reliable alternative to the gear coupling for advanced marine applications.
Diaphragm (acoustics)
Fluid coupling
Marine propulsion
Non-circular gear
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In this paper, bi-directional fluid-solid coupling numerical analysis method was introduced into the structural design of hydrodynamic coupling, this method was adopted to simulate the impeller strength and analyze the dynamic characteristics of the turbine blades, as well as the influences of turbine blades deformation the inside flow filed of hydrodynamic coupling was discussed. The work provides a theoretical basis for the design of the hydrodynamic coupling with the great power and high speed.
Fluid coupling
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Stewart platform
Fluid coupling
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Fluid coupling
Non-circular gear
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Hydrodynamic coupling is one of the important components in the vehicle transmission system, in which, the power of engine is transmitted through the circular flow of the hydro oil.The three dimensional fluid model was built, and the dynamic flow in the hydrodynamic coupling was calculated with calculation fluid dynamics software.The numerical results and graphs turn out that the pressure increases rapidly with the distance from the coupling axis, but pressure has only a small change in direction of parallel to the coupling axis.
Fluid coupling
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