Results 21 to 30 of about 228,079 (166)

ENERGY STORAGE DEVICE OPTIMIZATION IN PERIPHERY-TYPE DOCKING ASSEMBLY [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
The paper considers selection of parameters of the spacecraft periphery-type docking assembly. The kinematic scheme of its docking mechanism is based on the Gough-Stewart platform. Constructive implementation of its linear elements in operation is called
Yaroslav V. Rasskazov   +1 more
doaj   +1 more source

ANALYSIS OF NONLINEAR DYNAMIC CHARACTERISTICS OF AN IMPACT-UNBALANCED SUSPENDED ROTOR SYSTEM

open access: yesJixie qiangdu, 2022
Established an impact-unbalanced suspended rotor system mechanics models, and the dimensionless motion equation of system is deduced, using the fourth order Runge-Kutta method for the numerical calculation of this model, the integrated use of bifurcation
LIU JunJie   +4 more
doaj  

Research on nonlinear dynamic characteristics of high-speed gear in two-speed transmission system

open access: yesScientific Reports, 2023
The working performance and service life of the two-speed transmission system directly affects the performance and service life of helicopters and other equipment.
Wuzhong Tan   +4 more
doaj   +1 more source

Robust Control of Heat Exchangers

open access: yesChemical Engineering Transactions, 2012
This work deals with the design and application of a neuro-fuzzy controller to a heat exchanger and with possibilities to use the coefficient diagram method for heat exchanger control. The heat exchanger is a tubular one and it is used for pre-heating of
A. Vasickaninová, M. Bakošová
doaj   +1 more source

A coefficient diagram method based AGC mechanism for an interconnected power system in coordination with UPFC and AC/DC link

open access: yesArchives of Electrical Engineering, 2020
Frequency regulation is in a first line of preference for an interconnected power system. Presence of nonlinearities in the generation systems further raises the complexity level of the problem.
A.K. Sahani   +3 more
doaj   +1 more source

Study on bifurcation characteristics of multi-clearance bending torsional coupling gear transmission based on EHL

open access: yesAdvances in Mechanical Engineering, 2020
In order to study the influence of tooth surface friction on the non-linear bifurcation characteristics of multi-clearance gear drive system, a 6 degree-of-freedom bending torsional coupled vibration model was established. The time-varying mesh stiffness,
Hao Dong, Jianwen Zhang, Libang Wang
doaj   +1 more source

Multivariable integrated evaluation of model performance with the vector field evaluation diagram [PDF]

open access: yesGeoscientific Model Development, 2017
This paper develops a multivariable integrated evaluation (MVIE) method to measure the overall performance of climate model in simulating multiple fields.
Z. Xu, Y. Han, C. Fu, C. Fu
doaj   +1 more source

A New Frequency Control Strategy in an Islanded Microgrid Using Virtual Inertia Control-Based Coefficient Diagram Method

open access: yesIEEE Access, 2019
Renewable energy sources (RESs) are growing rapidly and highly penetrated in microgrids (MGs). As a result of the replacement of the synchronous generators with a large amount of RESs, the overall system inertia might be dramatically reduced which ...
Hossam Ali   +6 more
doaj   +1 more source

Temperature Control of Autothermal Reformer System with Coefficient Diagram Method

open access: yesIOP Conference Series: Materials Science and Engineering, 2017
The objective of this paper is to design the autothermal reformer (ATR) temperature control by using a coefficient diagram method (CDM). The adiabatic temperature is a main controlled variable of the ATR which is a combination of endothermic and exothermic reactions.
N Srisiriwat, C Wutthithanyawat
openaire   +1 more source

The Influence of Switching Frequency on Control in Voltage Source Inverters

open access: yesEnergies
This paper aims to show how the switching frequency influences the properties of the digitally controlled voltage source inverter (VSI). The measurements of the Bode plots of the inverter are shown and discussed to present the existing signal delays and ...
Zbigniew Rymarski
doaj   +1 more source

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