Investigate of Mechanical Fuse in Cardan Shaft Using FEM

Rabiei, Sayed Poorya; Azarafza, Reza

doi:10.18488/journal.79/2014.1.1/79.1.1.10

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…Dynamic angle changes between co-working, connected shafts strongly argue for the application of cardan joints, which are used in ship drives, rolling mills, or automobiles [22,23]. For this reason, modelling and analysis of transient states in drive systems that include susceptible motion transmissions including cardan joints is very topical [9][10][11]. In some cases of rotational systems operating in difficult conditions, a mathematical model of motion transmission should be analysed addressing a variety of latent motions, both internal and external [4].…”

Section: Drive Systems Including Cardan Jointsmentioning

confidence: 99%

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Mathematical Modelling of Transient Processes in an Asynchronous Drive with a Long Shaft Including Cardan Joints

et al. 2021

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Beginning with the classic methods, a mathematical model of an electromechanical system is developed that consists of a deep bar cage induction motor that, via a complex motion transmission with distributed mechanical parameters, drives a working machine, loading the drive system with a constant torque. The electromagnetic field theory serves to create the motor model, which allows addressing the displacement of current in the rotor cage bars. Ordinary and partial differential equations are used to describe the electromechanical processes of energy conversion in the motor. The complex transmission of the drive motion consists of a long shaft with variable geometry cardan joints mounted on its ends. Non-linear electromechanical differential equations are presented as a system of ordinary differential equations combined with a mixed problem of Dirichlet first-type and Poincaré third-type boundary conditions. This system of equations is integrated by discretising partial derivatives by means of the straight-line methods and successive integration as a function of time using the Runge–Kutta fourth-order method. Starting from there, complicated transient processes in the drive system are analysed. Results of computer simulations are presented in the graphic form, which is analysed.

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Section: Drive Systems Including Cardan Jointsmentioning

confidence: 99%

“…Drive systems including cardan joints are free from this shortcoming of non-aligned shafts [9][10][11]. A cardan joint is a mechanical element serving to transmit torque and normally used to connect driving and driven shafts that cannot be connected directly due to the distance or the need to allow some relative motion between them.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modelling of Transient Processes in an Asynchronous Drive with a Long Shaft Including Cardan Joints

et al. 2021

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Additive Manufacturing of Locally Weakened Parts to Obtain a Designed Fracture

Galati

Defanti

2023

Met. Mater. Int.

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Today, the additive manufacturing (AM) approach has led to profound changes in part and process design, enabling previously impossible material properties. With the freedom to create the material as components are built layer by layer, AM has permitted precise spatial control of the material properties in manufactured parts. In this work, an original approach is proposed to locally control component and process design and create intentionally weakened regions with designed fracture, which paves the way to tuneable mechanical properties. Tensile tests of specimens with embedded weakened area of various geometries are used to verify the feasibility of a-priori-designed fracture modes and to characterise the variation in material behaviour. The results show that an ad hoc design of the artificially weakened areas is effective for predictable breakage, with load and strain being the precursor for active control of the mechanical behaviour. The attainability of a quantitative relationship between the defect and the mechanical response is exemplified by the fact that, e.g. for a flat geometry, the maximum stress and strain are reduced by half when the thickness of the weak region is doubled. Graphical abstract

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Investigate of Mechanical Fuse in Cardan Shaft Using FEM

Abstract: ABSTRACT

Cited by 2 publications

References 7 publications

Mathematical Modelling of Transient Processes in an Asynchronous Drive with a Long Shaft Including Cardan Joints

Mathematical Modelling of Transient Processes in an Asynchronous Drive with a Long Shaft Including Cardan Joints

Additive Manufacturing of Locally Weakened Parts to Obtain a Designed Fracture

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