Results 11 to 20 of about 139 (117)

Epicycloids and Blaschke products [PDF]

open access: yesJournal of Difference Equations and Applications, 2017
14 pages, 4 ...
Cao, Chunlei   +2 more
openaire   +2 more sources

Roullete curves, coin paradox and Aristotle’s wheel paradox [PDF]

open access: yesRevista Brasileira de Ensino de Física
This work discusses the concept of roulette, the generated curves that occur when one curve rolls without slipping along another, tracing the path of a fixed point.
Osvaldo L. Santos-Pereira
doaj   +1 more source

Starlike functions associated with an epicycloid

open access: yesHacettepe Journal of Mathematics and Statistics, 2022
For a natural number $n\geq 2$, the function $\phi_{n\mathcal{L}}(z)=1+nz/(n+1)+z^n/(n+1)$ maps the open unit disk onto a domain bounded by an epicycloid with $(n-1)$ cusps. A class of starlike functions associated with $\phi_{n\mathcal{L}}$ is defined in the unit disk and its sharp bounds on initial coefficients, various inclusion relations and radii ...
Shweta GANDHİ   +3 more
openaire   +2 more sources

Three Special Forms of Epicycloid Profiles of Cam Rotors and Their Performance Analysis

open access: yesJixie chuandong, 2022
Focusing on optimal profile construction of epicycloid cam rotors for pump, using the bisymmetric method and taking the rolling radius ratio as the structural variables, an equation of inner conjugate curve corresponding to epicycloid is derived; and ...
Chen Qinghong, Li Yulong, Zhang Pingshan
doaj  

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

Influence of tooth profile on rotation error of eccentric gearing satellite

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2020
In the article a cycloid internal engagement of gears that form an eccentric gearing, is considered. This engagement is investigated in point of insensitivity to assembly error. Only one type of assembly error – error of center distance i.
P. N. Gromyko   +2 more
doaj   +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

CYCLING CURVES AND THEIR APPLICATIONS

open access: yesJournal of Industrial Design and Engineering Graphics, 2015
This paper proposes an analysis of the cyclic curves that can be considered as some of the most important regarding their applications in science, technique, design, architecture and art.
Lucian Raicu, Ana Maria Mihaela Rugescu
doaj   +4 more sources

Change of the radial force in locking of planetary-lantern transmission

open access: yesИзвестия высших учебных заведений. Поволжский регион:Технические науки, 2023
Background. The value of the radial force transmitted to the satellite support of the planetary- lantern transmission from locking is characterized by radial force coefficient. The available information about it in the non-operating transmission is not
E.A. Tchufistov, O.E. Tchufistov
doaj   +1 more source

A novel design on smooth rotor profile with meshing clearance for screw vacuum pump

open access: yesAdvances in Mechanical Engineering, 2022
Cross-section profile of rotor takes a great effect on the performance of dry-screw vacuum pump. A novel smooth rotor profile consisting of eight segments of curves, including arcs and conjugate correction curves is proposed.
Li Zhang   +3 more
doaj   +1 more source

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