搜索结果: 1-15 共查到“知识库 机械工程 systems”相关记录32条 . 查询时间(0.687 秒)
New Linkage with Linear Actuator for Tracking PV Systems with Large Angular Stroke
solar tracking linkage linear actuator angular stroke transmission angle
2011/8/5
This paper focuses on the development of an optimized photovoltaic tracking system involving low-cost, relative simple mechanisms, with linear actuators able to insure strokes comparable with those re...
Stability Analysis on Rotor Systems Supported by Self-acting Tilting-pad Gas Bearings with Frequency Effects
bearing-rotor system tilting-pad bearing logarithm attenuation rate
2011/8/4
The recent research on stability of gas bearing-rotor systems still mostly adopts the same method as in oil-lubricated bearing-rotor systems. The dynamic coefficients of gas bearings in the case that ...
Chaos synchronization between two different sprott systems
chaos synchronization Sprott systems adaptive synchronization
2010/9/26
This letter presents chaos synchronization of two different Sprott systems. Chaos
synchronization of them by using active control is achieved. Based on the
Lyapunov stability theory an adaptive cont...
Large unified symmetries of Emden dynamics systems
Large Unified Symmetry conserved quantity Emden dynamics system
2010/11/25
We propose a new concept of the Large Unified Symmetries and conserved quantities for Emden dynamics systems. We work on the Large Unified Symmetries and conserved quantities by the Noether symmetry, ...
An Approach to the Design Calculation of Sucker Rod Pumping Systems in Coalbed Methane Wells
sucker rod pump kinematic analysis polished rod load
2011/8/3
The existing design of the pumping systems mainly focuses on the approximate computational formulae and procedures, which are developed based on the analytic approaches of conventional oil/gas fields....
Virtual Reality Toolkit for the Assembly of Nanotube-based Nano-electro-mechanical Systems
virtual reality nano-assembly nano-electro-mechanical systems
2011/8/3
Nano assembly and manipulation technologies are the basis for nano-electro-mechanical systems(NEMS). Atomic force microscopy(AFM) is widely used to manipulate nanotubes to assemble NEMS. Manipulating ...
Sequencing Mixed-model Production Systems by Modified Multi-objective Genetic Algorithms
mixed-model production system sequencing parallel machine buffers
2011/8/3
As two independent problems, scheduling for parts fabrication line and sequencing for mixed-model assembly line have been addressed respectively by many researchers. However, these two problems should...
Configuration Selection for Reconfigurable Manufacturing Systems by Means of Characteristic State Space
reconfigurable manufacturing system configuration selection
2011/8/3
The configuration selection for reconfigurable manufacturing systems(RMS) have been tackled in a number of studies by using analytical or simulation models. The simulation models are usually based on ...
Longitudinal vibrations of mechanical systems with the transportation effect
Applied mechanics Longitudinal vibrations Multibody systems
2009/12/14
Purpose: this thesis purpose is a new way of modelling systems working with high speeds of mechanisms. Systems are analyzed with taking into consideration the rotational movement and with criterions o...
Half-shaft undercarriage systems – designing and operating problems
Cad/Cam Constructional design Materials Metallography
2009/12/14
Purpose: The paper discuss designing and operating problems of half-shafts undercarriage systems of open pit machines. Example of failure of such system and investigation of its reasons are presented....
MATHEMATICAL MODELING AND OPTIMIZATION OF TRI-GENERATION SYSTEMS WITH RECIPROCATING ENGINES
co-generation tri-generation optimization, pay-back period primary energy savings
2010/10/11
Tri-generation systems are used to simultaneously produce electrical, heating, and cooling energy. These systems are usually more efficient than conventional systems for separate production and have s...
Analysis of complex damped longitudinally vibrating systems in transportation
Numerical techniques Computational mechanics Applied mechanics
2010/1/19
Purpose: of this thesis is dynamical analysis of complex systems in transportation. Analyzed systems are composed of rotatable rods. Transportation was defined as main motion of rods and the overall s...
Performance Comparison of Single-Stage and Cascade Refrigeration Systems Using R134a as the Working Fluid
Refrigeration Cascade system Single-stage system Coecient of performance R134a
2009/10/10
This study presents an experimental comparison of single-stage and cascade vapour-compression refrigeration systems using R134a as the refrigerant. The experimental plants employ a vapour-compression ...
Prediction of Wind Speed and Power in the Central Anatolian Region of Turkey by A Fuzzy Inference Systems (ANFIS)daptive Neuro-
Wind speed Wind power Adaptive neuro-fuzzy inference systems (ANFIS) Central Anatolian region
2009/10/10
An adaptive neuro-fuzzy inference systems (ANFIS) model was used for predicting regional average wind speed and power values in the Central Anatolian region of Turkey. In model development, longitude,...
异构数控系统的网络化集成制造技术（Networked Integration Manufacturing Based on Different Numerical Control Systems）
网络化制造 信息集成 公共对象请求代理体
2009/8/11
为适应网络化制造的功能要求，构建了基于车间异构数控系统的网络化集成通信体系结构。该结构体系融合了设备层信息与车间层控制、管理信息，可实现底层设备与上层应用系统之间的信息交换与融合集成；建立了通信体系的网络通信机制，并论述了应用设备的信息集成，以及与企业内部系统基于公共对象请求代理体系结构的信息集成和与外部系统基于Web服务的信息集成。该方案有助于网络化制造环境下企业内部或企业间的制造信息集成。