Torque transmission capability of composite–metal interference fit joints

2007 ◽  
Vol 78 (4) ◽  
pp. 584-595 ◽  
Author(s):  
Seung Woo Lee ◽  
Dai Gil Lee
Keyword(s):  
Interference Fit ◽  
Torque Transmission ◽  
Transmission Capability

Compliant Cardan Universal Joint

2012 ◽  
Vol 134 (2) ◽  
Author(s):  
Engin Tanık ◽  
Volkan Parlaktaş
Keyword(s):  
Universal Joint ◽  
Original Design ◽  
Element Analysis ◽  
Theoretical Approaches ◽  
Torque Transmission ◽  
Single Piece ◽  
Transmission Capability ◽  
Flexural Hinges ◽  
Planar Materials ◽  
Cardan Joint

In this study, a compliant version of the Cardan universal joint is introduced. The original design consists of two identical parts assembled at right angle with respect to each other. The single piece part can be produced from planar materials; thus, it has the advantage of easiness in manufacturing. Dimensions of the mechanism are devised in order to satisfy the Cardan joint theory and to avoid an undesired contact between the identical parts. As a design example, a mechanism is dimensioned. The resultant stresses at flexural hinges of this sample are determined via finite element analysis method and torque transmission capability of this mechanism is determined. Further, this sample is manufactured and operated under a considerable output loading. Therefore, robustness of the compliant Cardan joint is verified with this prototype. As well, it is verified that the results of experiments are consistent with the theoretical approaches.

scholarly journals Modification of the Tooth Geometry of a Polymer GEAR with a Straight Tooth Line to Adjust the Torque Transmission Capability in One Direction Only

2021 ◽  
Vol 24 (1) ◽  
Author(s):  
Piotr Strojny
Keyword(s):  
Mass Reduction ◽  
Torque Transmission ◽  
Functional Features ◽  
Methods Analytical ◽  
Transmission Capability

This paper describes a methodology for modifying a tooth for the ability to transmit torque in one direction only. It presents two methods (analytical and numerical) of tooth mass reduction while maintaining functional features of the whole transmission. The results of the above mentioned methodology are presented on the example of a mass-produced transmission.

Lubrication performance of magnetorheological fluid in shear mode magnetorheological clutch with and without groove

2021 ◽  
pp. 135065012110113
Author(s):  
Manish K Thakur ◽  
Chiranjit Sarkar
Keyword(s):  
Magnetic Particles ◽  
Magnetorheological Fluid ◽  
Shear Mode ◽  
Disc Surface ◽  
Torque Transmission ◽  
Lubrication Performance ◽  
Before And After ◽  
Wear Damage ◽  
Transmission Capability ◽  
Minimum Wear

In this work, the lubrication performance of magnetorheological fluid-filled parallel discs of shear mode magnetorheological clutch is investigated. A magnetorheological fluid contains magnetic particles responsible for the yield strength and hence torque transmission capability in the magnetorheological clutch. The wear damages of magnetic particles of a magnetorheological fluid and magnetorheological clutch discs are examined by scanning electron microscopy and optical microscopy. Energy-dispersive X-ray spectroscopy is used to investigate the variation in chemical composition before and after the experimental test. A test rig is developed to test the torque transmission for a fabricated magnetorheological clutch with a grooved and non-grooved disc. The grooves' impact on both magnetorheological clutch discs' wear and magnetorheological fluid is investigated. It has been observed that the minimum wear damage occurs in the magnetic particles and the disc surface for the circular grooved magnetorheological clutch disc surface than the non-grooved disc surface. An effect of surface texture on the temperature distribution of the magnetorheological clutch is studied through simulation. Simulation results show that the groove's presence on the disc surface can improve the magnetorheological clutch's heat transfer. Hence, the grooved texture improves the lubrication performance and durability of both magnetorheological fluid and magnetorheological clutch.

Simulation and Test Study of Multidisc Magneto-Rheological Fluid Clutch

2014 ◽  
Vol 599-601 ◽  
pp. 464-467
Author(s):  
De Min Chen ◽  
Qing Ge Cai ◽  
Hong Zhang
Keyword(s):  
Work Performance ◽  
Testing Machine ◽  
Simulation Software ◽  
Test Study ◽  
Element Simulation ◽  
Torque Transmission ◽  
Power Machine ◽  
Magneto Rheological ◽  
Transmission Capability ◽  
The Magnetic Field

A Magneto-rheological Fluid Clutch (MRC for short) which has a novel and simple structure is designed; the research on the magnetic field distribution is based on the finite element simulation software which is named Ansoft; In order to test the work performance, the electronic torsion testing machine is used for the torque transmission capability and controllability test. The experimental results reveal that the MRC could meet the torque transmission demand of high power machine and response quickly and reliably.

Exact Solution of Stress and Radial Displacement of Elastic Tapered Interference Fit

2013 ◽  
Vol 423-426 ◽  
pp. 1438-1443 ◽  
Author(s):  
Ling Xiong ◽  
Peng Shang ◽  
You Lin Xu
Keyword(s):  
Rotation Speed ◽  
Structure Design ◽  
Elastic Plane ◽  
Interference Fit ◽  
Stress Theory ◽  
Tangential Stresses ◽  
Torque Transmission ◽  
Screw Propeller ◽  
Connection Design ◽  
Large Vessels

Tapered interference fits, which can transfer large torques, are widely used in the connection design for propeller hubs and shafts of large vessels. In this paper, a model was developed to study the influences of torques, rotational speeds and tapers on the tapered interference fit between a propeller hub and a shaft. Using the classic elastic plane stress theory, the exact solutions of the radial stresses, tangential stresses and radial displacements of the propeller hub and shaft are derived. Then the calculation method of the magnitude of the tapered interference fit was presented. Finally taking a screw propeller system as an example, the above solutions were calculated using the numerical method. The results show that improving the stress distribution of the propeller hub is an effective approach to increase the connection strength and torque transmission capacity. If the rotation speed has to be considered, the stress and displacement would be increased significantly due to the centrifugal force. The present analytical solutions are expected to be useful in the structure design of tapered interference fits for propeller hubs and shafts.

Finite Element Simulation of Tire-Rim Interface

1989 ◽  
Vol 17 (4) ◽  
pp. 305-325 ◽  
Author(s):  
N. T. Tseng ◽  
R. G. Pelle ◽  
J. P. Chang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Contact Pressure ◽  
Element Model ◽  
Experimental Measurements ◽  
Inflation Pressure ◽  
Interference Fit ◽  
Element Simulation ◽  
Rubber Composite

Abstract A finite element model was developed to simulate the tire-rim interface. Elastomers were modeled by nonlinear incompressible elements, whereas plies were simulated by cord-rubber composite elements. Gap elements were used to simulate the opening between tire and rim at zero inflation pressure. This opening closed when the inflation pressure was increased gradually. The predicted distribution of contact pressure at the tire-rim interface agreed very well with the available experimental measurements. Several variations of the tire-rim interference fit were analyzed.

ON THE INTERACTION OF A VISCOELASTIC CYLINDRICAL PIPE WITH INNER UNIFORM COATING AND INSERTS WITH A COMPLEX PROFILE

2020 ◽  
Author(s):  
Kirill Kazakov
Keyword(s):  
Complex Shape ◽  
High Accuracy ◽  
Contact Stresses ◽  
Basis Functions ◽  
Complex Profile ◽  
Cylindrical Pipe ◽  
Interference Fit ◽  
Uniform Coating ◽  
Special Basis ◽  
Insert Region

This work is devoted to the formulation and construction of an analytical solution to the problem of contact between a cylindrical viscoelastic aging pipe with an internal thin coating and an insert having a complex shape placed inside the pipe with an interference fit. In practice, the presence of such coatings is required, for example, to protect the main structure from aggressive external or internal environments, for its electrical insulation, etc. The manufacturing process of the inner coating determines its possible heterogeneity (dependence of properties on coordinates). An insert placed inside a pipe can have a complex profile that has a rapidly changing function. Taking these features into account is important when analyzing the stress-strain state of pipes with an internal coating. Using an approach based on the use of special basis functions and the type of solution, a representation for the contact stresses in the pipe in the region of the rigid insert is obtained. This approach makes it possible to distinguish functions that describe the properties of the inner coating and the shape of the outer profile of the insert in the form of separate terms and factors in the expression for the contact stresses in the insert region. Therefore, in order to achieve high accuracy when carrying out calculations, it is sufficient to restrict ourselves to a relatively small number of terms

Interest interchangeability of planting with an interference fit

2020 ◽  
pp. 41-44
Author(s):  
M.N. Erokhin ◽  
O.A. Leonov ◽  
N.Zh. Shkaruba ◽  
Yu.V. Kataev ◽  
Yu.G. Vergazova
Keyword(s):  
Interference Fit ◽  
Theoretical Substantiation

The theoretical substantiation of the method of relative interchangeability in cylindrical joints with preload is given. Examples of connection of shafts with a repairable defect and parts with holes with an irrepairable defect and on the contrary at maintaining of required accuracy of joint on limiting preload are given. Keywords interchangeability, tolerance, size, fit, preload, repairable and irrepairable defect [email protected]

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