Results 21 to 30 of about 175 (152)

N-Division Points of Hypocycloids [PDF]

open access: yesArnold Mathematical Journal, 2016
We show that the $n$-division points of all rational hypocycloids are constructible with an unmarked straightedge and compass for all integers $n$, given a pre-drawn hypocycloid. We also consider the question of constructibility of $n$-division points of hypocycloids without a pre-drawn hypocycloid in the case of a tricuspoid, concluding that only the $
Mani, Nitya, Rubinstein-Salzedo, Simon
openaire   +2 more sources

Optimization of Geometric Characteristics of Cycloidal Profiles of Gerotor Hydraulic Machines

open access: yesAdvanced Engineering Research, 2023
Introduction. The performance and reliability of gerotor hydraulic machines depend on the geometry of the cycloidal gearing  profile.  The  existing  methods  of  calculating  and  optimizing  the  profile  parameters  are  cumbersome,  multicriteria and
S. O. Kireev   +2 more
doaj   +1 more source

The Magnetic field for an n-cusped Epi-and Hypo-Cycloids loop current [PDF]

open access: yesRevista Brasileira de Ensino de Física, 2021
We calculate the magnetic field generated by a steady current that takes the shape of two types of special curves: hypocycloids and epicycloids with n numbers of sides. The computation was performed in the center of the referred curves. For this purpose,
David Romero Abad
doaj   +1 more source

Analysis of hypocycloid drive application in a high-pressure fuel pump

open access: yesMATEC Web of Conferences, 2017
This paper undertakes the problem of applying a hypocycloid mechanism in the drive of pumping sections of high-pressure pumps for Diesel combustion engines.
Bor Mateusz   +4 more
doaj   +1 more source

Organisierte mesoskalige Störungen in der stabilen planetaren Grenzschicht

open access: yesMeteorologische Zeitschrift, 1995
In der nächtlichen stabilen Grenzschicht treten regelmäßig Störungen mit einer Periodendauer von einigen Stunden auf, deren horizontale Komponenten eine Phasenverschiebung gegeneinander aufweisen, so daß die Hodographen der Windvektoren in einer Höhe ...
Ch. Jacobi, Rainer Roth
doaj   +1 more source

On One Problem of the Nonlinear Convex Optimization

open access: yesAppliedMath, 2022
In this short paper, we study the problem of traversing a crossbar through a bent channel, which has been formulated as a nonlinear convex optimization problem.
Robert Vrabel
doaj   +1 more source

Efek Diskritisasi pada Modifikasi Hypocycloid Menjadi CSCPP (Curve Stitching Connected Pseudo Polygon)

open access: yesJambura Journal of Mathematics, 2020
Tulisan ini membahas tentang pembuatan Curve Stitching berdasarkan efek diskritisasi kurva Hypocycloid yang dimodifikasi. Kurva yang dihasilkan dinamakan Connected Pseudo Polygon (CPP) karena berupa segibanyak yang berbentuk berdasarkan urutan cara ...
Hanna Arini Parhusip
doaj   +1 more source

Strength analysis of critical components of high-pressure fuel pump with hypocycloid drive [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
Most high-pressure fuel pumps for compression-ignition engines manufactured today are cam driven. These pumps have numerous advantages, such as low energy consumption and limited production costs.
M. Bajerlein   +4 more
doaj   +1 more source

Coefficient Conditions for Harmonic Close‐to‐Convex Functions

open access: yesAbstract and Applied Analysis, Volume 2012, Issue 1, 2012., 2012
New sufficient conditions, concerned with the coefficients of harmonic functions f(z)=h(z)+g(z)¯ in the open unit disk 𝕌 normalized by f(0) = h(0) = h′(0) − 1 = 0, for f(z) to be harmonic close‐to‐convex functions are discussed. Furthermore, several illustrative examples and the image domains of harmonic close‐to‐convex functions satisfying the ...
Toshio Hayami, Roman Simon Hilscher
wiley   +1 more source

MODELLING WITH GENERALIZED CYLINDER SURFACES

open access: yesJournal of Industrial Design and Engineering Graphics, 2019
This paper presents several of the most interesting surfaces generated by the spine curve of a generalized cylinder surface, with known parameters exhibiting advantages related to the calculation and drawing of the surface.
Radu TRIMBITAS   +3 more
doaj   +4 more sources

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