Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Electronic National ...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
addClaim

This Research product is the result of merged Research products in OpenAIRE.

You have already added 0 works in your ORCID record related to the merged Research product.

Оптимизация параметров быстроходных кулачковых и кулачково-рычажных механизмов

Оптимизация параметров быстроходных кулачковых и кулачково-рычажных механизмов

Abstract

Обсуждается вопрос постановки задач оптимизации параметров кулачковых и кулачково-рычажных механизмов в свете системного подхода к проектированию. Анализируется современное состояние оптимизационного синтеза рассматриваемых типов механизмов. Исходными данными при оптимизации параметров являются: перемещения ведомого звена на всех участках интервала движения, соответствующие им фазовые углы поворота кулачка и закон изменения внешней нагрузки. Искомыми являются параметры передаточного механизма, параметры кулачкового механизма (межцентровое расстояние, длина коромысла, радиус ролика, минимальный радиус-вектор профиля кулачка) и параметры законов движения ведомого звена на каждом интервале его перемещения, которые задаются в виде алгебраических многочленов либо сплайнов. Также искомыми могут быть и конструктивные параметры механизма, например, ширина линии контакта пары кулачок- ролик, размеры низших кинематических пар, жесткость и предварительное сжатие пружины в случае силового замыкания высшей пары. Общее количество искомых параметров зависит от выбранного в процессе реализации алгоритма комплексной оптимизации уровня решения задачи оптимизации рассматриваемого механизма. К числу обязательных ограничений при оптимизации параметров кулачково-рычажных механизмов следует отнести габаритные, которые позволяют разместить механизм в отведенном для него пространстве. Кроме того, могут встречаться специфические ограничения, отражающие особенности выполняемых технологических операций и условий работы механизма. В указанной постановке решены задачи оптимизации параметров ряда тестовых и реальных кулачковых и кулачково-рычажных механизмов полиграфических и текстильных машин. The problem of optimization task setting for cam and cam-lever mechanisms parameters is discussed in the light of design systematic approach. The current state of optimization synthesis of mechanisms under consideration is analyzed. The initial data for optimization parameters are: the movement of the slave link in all parts of motion range, the corresponding phase angles of cam rotation and the law of change in external loading. The required parameters are: the transmission mechanism, the parameters of the cam mechanism (center-to-center distance, the length of the rocker arm, the roller radius, the minimum radius vector of the cam profile) and the parameters of the laws of motion of the driven member at each interval of its movement, which are specified in the form of algebraic polynomials or splines. Also, the mechanism design parameters can be required parameters, for example, the width of the contact line of a cam-roller pair, the dimensions of the lower kinematic pairs, stiffness and spring pre-compression in the case of the force closure of the higher pair. The total number of required parameters depends on the level of solving optimization problem of the mechanism under consideration chosen during the implementation of the algorithm for complex optimization. The number of mandatory restrictions in parameters optimization the of cam-lever mechanisms should be attributed to the overall dimensions, which allow to place the mechanism in a space allocated for it. In addition, there may be specific limitations reflecting the features of the technological operations performed and the operating conditions of the mechanism. In this formulation, parameters optimization tasks are solved for a number of test and real cam and cam-lever mechanisms of printing and textile machines.

Country
Ukraine
Related Organizations
Keywords

objective function, normal reaction, целевая функция, optimization criteria, кулачковые механизмы, cam mechanisms, критерии оптимизации, коэффициент контактных напряжений, коэффициент износа, профиль кулачка, cam-lever mechanisms, cam profile

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green