Design and Torsional Rigidity Analysis on Frame of Formula Garuda 17 Based on Student Formula Japan 2017 Rules

When the FA pin-cycloid drive is used in high precision control drive system, especially in the robot drive, there are strict requirements to torsional rigidity .Usually in rated torque, the elastic lost motion produced by the torsional elastic deformation must meet certain precision. This paper analyzes all kinds of elastic factors which affect the rigidity, establishes mathematical model of the machine rigidity and calculates the rigidity for the FA pin-cycloidal drive. Meanwhile ANSYS is applied to build finite element analysis model, and the finite element contact analysis results coincide with the rigidity analysis theory, which confirms the correctness of the machine rigid mathematical model.

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CHASSIS TORSIONAL RIGIDITY: VALIDATION OF FEA DATA BY EXPERIMENTAL TEST

10.26678/abcm.cobem2019.cob2019-2174 ◽

2019 ◽

Author(s):

Luís Fernando Marzola da Cunha ◽

Matheus Lisboa Cardoch Valdes ◽

Rhander Viana ◽

Danilo dos Santos Oliveira ◽

Luiz Eduardo Rodrigues Vieira

Keyword(s):

Experimental Test ◽

Torsional Rigidity

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Analytical solution for torsion of cylindrical orthotropic annular wedge-shaped bars reinforced by thin shells

Archive of Applied Mechanics ◽

10.1007/s00419-021-02009-w ◽

2021 ◽

Author(s):

István Ecsedi ◽

Attila Baksa

Keyword(s):

Analytical Solution ◽

Cross Section ◽

Analytical Method ◽

Torsional Rigidity ◽

Circular Ring ◽

Thin Shells ◽

Elastic Wedge ◽

Curved Boundary ◽

Cylindrically Orthotropic ◽

Boundary Surfaces

AbstractThis paper deals with the Saint-Venant torsion of elastic, cylindrically orthotropic bar whose cross section is a sector of a circular ring shaped bar. The cylindrically orthotropic homogeneous elastic wedge-shaped bar strengthened by on its curved boundary surfaces by thin isotropic elastic shells. An analytical method is presented to obtain the Prandtl’s stress function, torsion function, torsional rigidity and shearing stresses. A numerical example illustrates the application of the developed analytical method.

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Torsional rigidity, principal frequency, electrostatic capacity and symmetrization

Quarterly of Applied Mathematics ◽

10.1090/qam/26817 ◽

1948 ◽

Vol 6 (3) ◽

pp. 267-277 ◽

Cited By ~ 98

Author(s):

George Pólya

Keyword(s):

Torsional Rigidity ◽

Principal Frequency

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Analysis of Twisting Stiffness for a Multifiber Composite Layer

Journal of Applied Mechanics ◽

10.1115/1.3423366 ◽

1974 ◽

Vol 41 (3) ◽

pp. 658-662 ◽

Cited By ~ 4

Author(s):

C. W. Bert ◽

S. Chang

Keyword(s):

Cross Section ◽

Least Squares Method ◽

Rectangular Cross Section ◽

Torsional Rigidity ◽

Composite Layer ◽

Circular Cross Section ◽

Relaxation Method ◽

Fiber Composites ◽

Numerical Results ◽

Torsion Problem

The twisting stiffness of a rectangular cross section consisting of a single row of solid circular cross-section fibers embedded in a matrix is analyzed. The problem is formulated as a Dirichlet torsion problem of a multielement region and solved by the boundary-point least-squares method. Numerical results for a single-fiber square cross section compare favorably with previous relaxation-method results. New numerical results for three and five-fiber composites suggest that the torsional rigidity of a multifiber composite can be approximated from the torsional rigidities of single and three-fiber models.

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