scholarly journals Structure Optimization Design of the Electronically Controlled Fuel Control Rod System in a Diesel Engine

2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
Hui Jin ◽  
Haosen Wang
Keyword(s):  
Cooperative Control ◽  
Optimization Design ◽  
Engine Speed ◽  
Ride Comfort ◽  
Key Factors ◽  
Control Rod ◽  
Rod System ◽  
Design Cycle ◽  
Vehicle Systems ◽  
Automated Manual Transmission

Poor ride comfort and shorter clutch life span are the key factors restricting the commercialization of automated manual transmission (AMT). For nonelectrically controlled engines or AMT where cooperative control between the engine and the transmission is not realizable, applying electronically controlled fuel control rod systems (ECFCRS) is an effective way to solve these problems. By applying design software such as CATIA, Matlab and Simulink, and MSC Adams, a suite of optimization design methods for ECFCRS drive mechanisms are developed here. Based on these new methods, design requirements can be analyzed comprehensively and the design scheme can be modified easily, thus greatly shortening the design cycle. The bench tests and real vehicle tests indicate that the system developed achieves preferable engine speed following-up performance and engine speed regulating performance. The method developed has significance as a reference for developing other vehicle systems.

Neutronic analysis of absorbing materials for the control rod system in reactor ALLEGRO

Kerntechnik ◽  
2016 ◽  
Vol 81 (4) ◽  
pp. 445-451
Author(s):  
F. Čajko ◽  
M. Sečanský ◽  
T. Chrebet ◽  
R. Zajac ◽  
P. Dařílek
Keyword(s):  
Control Rod ◽  
Rod System ◽  
Absorbing Materials

Application research of automobile modeling optimization design based on virtual reality technology

2021 ◽  
pp. 1-13
Author(s):  
Jingfeng Shao ◽  
Zhigang Yang
Keyword(s):  
Virtual Reality ◽  
Optimization Design ◽  
Evaluation Process ◽  
Design Stage ◽  
Virtual Reality Technology ◽  
Automobile Design ◽  
Field Of Vision ◽  
Development Cycle ◽  
Design Cycle ◽  
Long Time

Automobile styling design is an important part of the design chain. In the traditional automobile modeling evaluation, the process of project evaluation is more in-depth, and designers exchange ideas. Different designers have different evaluations of automobile styling. The evaluation process lasts a long time, which leads to the design cycle being too long and the efficiency of automobile modeling evaluation is greatly reduced. The introduction of virtual reality in automobile modeling evaluation can effectively optimize the evaluation process and promote the rapid adjustment of the model on the basis of development. From the virtual reality system based on mechanical engineering, we only need the parameters of the car model to observe the actual situation through VR technology, and use the measurement tools to directly and accurately evaluate the driver’s field of vision. Through the application of virtual reality technology in the automobile design stage, the interactive and network-based remote research on automobile modeling will also make the automobile design process more convenient, easier to communicate with designers, and reduce the development cycle and cost of automobile design.

Study on Vibration Signal Marginal Spectrum of Paper-Transferring System in Printing Press Based on EMD

2010 ◽  
Vol 139-141 ◽  
pp. 2464-2468
Author(s):  
Yi Ming Wang ◽  
Shao Hua Zhang ◽  
Zhi Hong Zhang ◽  
Jing Li
Keyword(s):  
Empirical Mode Decomposition ◽  
Optimization Design ◽  
Impact Load ◽  
Vibration Signal ◽  
Key Factors ◽  
Mode Function ◽  
Mode Decomposition ◽  
Marginal Spectrum ◽  
Periodic Signals ◽  
The Moment

The precision of transferring paper is key factors to decide the print overprint accuracy, and vibration has an important impact on paper transferring accuracy. Empirical mode decomposition (EMD) can be used to extract the features of vibration test signal. According to the intrinsic mode function (IMF) by extracted, it is useful to analyze the dynamic characteristics of swing gripper arm on motion state. Due to the actual conditions of printing, the vibration signal of Paper-Transferring mechanism system is complex quasi periodic signals. Hilbert-Huang marginal spectrum that is based on empirical mode decomposition can solve the problem which is modals leakage by FFT calculated in frequency domain. Through the experimental research, the phase information of impact load at the moment of grippers opening or closing, which can be used for the optimization design of Paper-Transferring system and the improvement in the accuracy of swing gripper arm.

Comparative Analysis of the Control Rod Drive System

2012 ◽  
Vol 614-615 ◽  
pp. 1558-1561
Author(s):  
Wen Wei Han ◽  
Wei Shi Han ◽  
Qing Guo
Keyword(s):  
Comparative Analysis ◽  
Drive System ◽  
Hydraulic Control ◽  
Control Rod ◽  
Rod System ◽  
Drive Systems ◽  
Research Situation

This article has systematically summarized the recent research situation of control rod system in China and comparatively analyzed the features of a variety of control rod drive systems on a basis of brief introduction of common types of control rod drive system. It has been proposed to that the hydraulic control rod drive system have a great potential in a wide application concerning on ships, warships power reactors and protable desalination system.

The Research and Application on Optimization Design of Lifting Mechanism - The Hydraulic Cylinder Structure Design

2014 ◽  
Vol 945-949 ◽  
pp. 503-508
Author(s):  
Li Xie ◽  
Qi Sun
Keyword(s):  
Optimization Design ◽  
Lower Cost ◽  
Hydraulic Cylinder ◽  
Structure Design ◽  
Optimal Parameters ◽  
Modern Computer ◽  
Optimal Value ◽  
Design Cycle ◽  
General Mechanic ◽  
Modern Computer Technology

As general mechanic designing methods take long design cycle and consume many resources, though it could find a good design, it could not get the optimal one.Optimization design is the fruit of the combination of optimization mathematical method and modern computer technology, which enables to get the optimal parameters under various constrains, so that the optimal value could be achieved. Optimization design is a method to ensure better usability, lower cost and reducing weight and volume when normally use it. This method can also shorten the design cycle and enhance the design efficiency.

ICONE15-10466 DESIGN OF THE CONTROL ROD SYSTEM FOR THE 2400 MW_ GENERATION IV GAS-COOLED FAST REACTOR

2007 ◽  
Vol 2007.15 (0) ◽  
pp. _ICONE1510-_ICONE1510
Author(s):  
G. Girardin ◽  
P. Coddington ◽  
F. Morin ◽  
G. Rimpault ◽  
R. Chawla
Keyword(s):  
Fast Reactor ◽  
Control Rod ◽  
Rod System

Tolerance Optimization Design Based on Physical Programming Methods and PSO Algorithm

2011 ◽  
Vol 346 ◽  
pp. 584-592 ◽  
Author(s):  
H.B. Qiu ◽  
Y. Y. Dong ◽  
Y. Wang ◽  
L. Gao
Keyword(s):  
Optimization Design ◽  
Pso Algorithm ◽  
Tolerance Allocation ◽  
Dimensional Chain ◽  
Effective Solution ◽  
Key Factors ◽  
Physical Programming ◽  
Tolerance Optimization ◽  
Product Features ◽  
Mechanical Products

Product tolerance is one of the key factors which can determine the good or bad performance of mechanical products. Its size not only affects the manufacturing and assembly process, but also affects product features [1]. Thus tolerance optimization design gets more and more attention. In this paper, an improved physical programming method is used to make mathematical modeling for tolerance allocation problem of assembly dimensional chain, and PSO algorithm is also used to improve solving ability. And the effective solution for tolerance optimization is designed.

Object-Oriented Modeling and Simulation of Railway Vehicle Systems

2010 ◽  
Vol 26-28 ◽  
pp. 900-904 ◽  
Author(s):  
Yong He ◽  
Guo Fu Ding ◽  
Yi Sheng Zou ◽  
Mei Wei Jia ◽  
Ming Heng Xu
Keyword(s):  
Software Package ◽  
Ride Comfort ◽  
Object Oriented ◽  
Simulation Software ◽  
Contact Forces ◽  
Railway Vehicle ◽  
Vehicle Systems ◽  
Hunting Stability ◽  
Multi Body ◽  
And Behavior

An object-oriented modeling method was proposed to develop a simulation software package named GVDS which could be used to predict some aspects of dynamic behavior of railway vehicle. The package based on multi-body dynamics mainly consists of three parts, an interactive pre-processor, the solver and an interactive post-processor. With UML, demands and structure of the software package are represented. By modeling of the geometry and behavior of each object, virtual prototype of railway vehicle is formed and by the simulation, the critical speed of hunting stability, wheel-rail contact forces and so on can be determined and the hunting stability, curving behavior and ride comfort can be analyzed and evaluated. Finally, some cases are simulated. The simulation results show the effectiveness of the proposed method.

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