Results 21 to 30 of about 1,916 (114)

Synthesis and Analysis of a Novel Linkage Mechanism with the Helical Motion of the End-Effector

Robotics, 2020
The proposed study is focused on the development of a novel modification of the slider-crank mechanism, the kinematic scheme of which is organized by coupling planar and spatial (screw) kinematic chains.
Alexey Fomin, Daniil Petelin, Andreas Jahr   +2 more
doaj   +1 more source

Dynamic Simulation of Crank-Group Driving Mechanism with Clearance

The Open Mechanical Engineering Journal, 2015
For the crank-group driving mechanism, the assembly clearances can offer the possibility to remove overcoming processing errors. But the clearances inevitably affect the dynamic characteristics of the mechanism. In this paper, the dynamic simulation model of the crank-group driving mechanism is established by NX/Motion Simulation which is based on the ...
Liu Yansong, Cao Jujiang, Cai Dongfei
openaire   +1 more source

Design and Experiment of an Integrated Automatic Transplanting Mechanism for Picking and Planting Pepper Hole Tray Seedlings

Agriculture, 2022
The operation of the semi-automatic pepper pot seedling transplanter has the problem of a low frequency of manual operation. We designed a new automatic transplanting mechanism based on a clamping stem.
Shuangyan Hu, Minjuan Hu, Wei Yan, Wenyi Zhang   +3 more
doaj   +1 more source

Expert assessment results anaylisys of machines power units in winter conditions

Вестник СибАДИ, 2020
Introduction. The implementation of production and technological processes of machines on the vast territory of the Russian Federation is related to the necessity to operate them in low temperatures conditions.
R. F. Salikhov, V. N. Kuznetsova, V. V. Dubkov   +2 more
doaj   +1 more source

The Working Cycle of the Motoring Internal Combustion Engine by a New Method with Cylinder Pressures as in Real Engine Operation

Journal of Mechanical Engineering, 2022
The current standard methods of determining the mechanical losses of the ICE by motoring do not correspond to the low pressures in the cylinders of real engine operation.
Procházka Radek, Dittrich Aleš, Beroun Stanislav, Zvolský Tomáš, Voženílek Robert   +4 more
doaj   +1 more source

New Ways to Measure Mechanical Losses by Motoring an ICE with Increased Cylinder Pressure

Applied Sciences, 2022
The article shows the results of measuring the mechanical losses of a piston engine in two new ways and explains the necessary engine modification for these measurements.
Radek Procházka, Aleš Dittrich, Robert Voženílek, Stanislav Beroun   +3 more
doaj   +1 more source

Kinematics Analysis of Multi-link Mechanism for Miniature Servo Press Based on Matlab

MATEC Web of Conferences, 2018
The degree of freedom for a multi-link drive mechanism of a 50kN miniature servo press was calculated. The kinematics equations of the mechanism was established based on the rod group method.
Lu Xinjian
doaj   +1 more source

THE REASONS OF INTENSIVE WEAR OF CYLINDERS OF YAMZ ENGINES – 238NB

Вестник СибАДИ, 2017
It is stated results of control in the course of repair of technical condition of cylinders of engines. Need of diagnosing of cylinders in structural parameters by direct measurements with partial or full dismantling of engines is proved. The description
S. A. Kornilovich
doaj   +1 more source

A Lie group variational integrator in a closed-loop vector space without a multiplier [PDF]

Mechanical Sciences
As a non-tree multi-body system, the dynamics model of four-bar mechanism is a differential algebraic equation. The constraints breach problem leads to many problems for computation accuracy and efficiency.
L. Bai, L. Xia, X. Ge
doaj   +1 more source

曲柄群驱动机构曲柄单元的动平衡研究

Jixie chuandong, 2014
A new type of transmission mechanism——crank-group driving mechanism is introduced.Taking into account the vibration problems of the mechanism in the process of high speed,and combining with the movement distribution form of crank-group mechanism,and ...
王文将, 曹巨江, 刘岩松, 任升
doaj