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| 1 | The Innovation of CNC Machine Interface Based on DNC System显示文摘This paper describes the innovation schemes of the interface of a CNC machinewhich cannot communicate with a computer by a Direct Numerical Control(DNC)interface andthe functions of a DNC interface system.One architecture of hardware and software of a practi-cal single-chip computer based on DNC interface system developed by the authors is given.Without any change of the original hardware and software,this DNC interface system has beenused to innovate the CNC machine’s interface to implement the direct communication between acomputer and a CNC machine and to achieve no tape transmission of a part program and ma-chine parameters.It has been demonstrated that this DNC interface system has certain practicalvalues in improving the reliability,efficiency and production management of CNC/NC machine. | Luo Jianjun Fan Liuqun Liang Gongqian China Research and Education Center of Plant Engineering,Northwestern Polytechnical University Xi’an,710072,P.R.China | 1997 | International Journal of Plant Engineering and Management1997，2，1： | 11 |
| 2 | Grey GM(1,1) Model with Function-Transfer Method for Wear Trend Prediction and its Application显示文摘Trend forecasting is an important aspect in fault diagnosis and work state supervision. The principle, where Grey theory is applied in fault forecasting, is that the forecast system is considered as a Grey system; the existing known information is used to infer the unknown information’s character, state and development trend in a fault pattern, and to make possible forecasting and decisions for future development. It involves the whitenization of a Grey process. But the traditional equal time interval Grey GM (1,1) model requires equal interval data and needs to bring about accumulating addition generation and reversion calculations. Its calculation is very complex. However, the non equal interval Grey GM (1,1) model decreases the condition of the primitive data when establishing a model, but its requirement is still higher and the data were pre processed. The abrasion primitive data of plant could not always satisfy these modeling requirements. Therefore, it establishes a division method suited for general data modeling and estimating parameters of GM (1,1), the standard error coefficient that was applied to judge accuracy height of the model was put forward; further, the function transform to forecast plant abrasion trend and assess GM (1,1) parameter was established. These two models need not pre process the primitive data. It is not only suited for equal interval data modeling, but also for non equal interval data modeling. Its calculation is simple and convenient to use. The oil spectrum analysis acted as an example. The two GM (1,1) models put forward in this paper and the new information model and its comprehensive usage were investigated. The example shows that the two models are simple and practical, and worth expanding and applying in plant fault diagnosis. | LUO You xin 1 , PENG Zhu 2 , ZHANG Long ting 1 , GUO Hui xin 1 , CAI An hui 1 1Department of Mechanical Engineering, Changde Teachers University, Changde 415003, P.R. China 2 Engineering Technology Board, Changsha Cigare | 2001 | International Journal of Plant Engineering and Management2001，6，4： | 11 |
| 3 | Grey Problems of a Mechanical Transmission System in a Reliability Study显示文摘In the light of the Grey characters of reliability on a mechanical transmission system, Grey problems that could assist in the study on mechanical transmission system were analyzed. For example, the factors of time function,the factors of environment and the factors of people have some relationships with the system in this paper. And then, the methods and procedures, which were based upon the theory of Grey system, were elaborated. | LUO You-xin, CAI An-hui, ZHANG Long-ting, GUO Hui-xin Department of Mechanical Engineering, Changde Normal College, Changde 415003, P. R. China | 2001 | International Journal of Plant Engineering and Management2001，6，2： | 8 |
| 4 | Grey System Judgment on Reliability of Mechanical Equipment显示文摘The Grey system theory was applied in reliability analysis of mechanical equipment.It is a new theory and method in reliability engineering of mechanical engineering of mechanical equipment. Through the Grey forecast of reliability parameters and the reliability forecast of parts and systems, decisions were made in the real operative state of equipment in real time. It replaced the old method that required mathematics and physical statistics in a large base of test data to obtain a pre check, and it was used in a practical problem. Because of applying the data of practical operation state in real time, it could much more approach the real condition of equipment; it was applied to guide the procedure and had rather considerable economic and social benefits. | LUO You xin, GUO Hui xin, ZHANG Long ting, CAI An hui, PENG Zhu Department of Mechanical Engineering,Changde Teachers University, Changde 415003, P.R.China | 2001 | International Journal of Plant Engineering and Management2001，6，3： | 7 |
| 5 | Research on Transmission Accuracy Characteristic Analysis of RV Reducer显示文摘The accuracy of RV reducer transmission is mainly affected by the transmission accuracy. Taking the high precision RV-80E reducer as the research object, aiming at its structural characteristics, the rigid-flexible coupling model of RV reducer is established by using ADAMS multi-body dynamics simulation software, and the correctness of the model is verified. At the same time, the rigid-flexible coupling model is used to design several groups of simulation prototypes with different errors, and the influence of different error factors on the transmission accuracy of the whole machine is analyzed by simulation. Finally, through different error factors, it is concluded that the error combination of positive equidistance+negative offset or negative equidistance+positive offset can effectively reduce the influence of transmission error on the transmission accuracy of the whole machine. | TAN Peng QI Houjun HAN Lin FENG Juntao MA Dongsheng | 2019 | International Journal of Plant Engineering and Management2019，24，3： | 7 |
| 6 | Adaptability Study of Intelligent Well Systems in East China Sea Oil Field显示文摘Intelligent well system is the well that has a set of equipment fixed in the down hole including sensing devices,data transmission system and operating devices for information acquiring,data gathering and decision analysis.By this remote control process,the smart well system can ultimately optimize well deliverability;it is used more and more often in oil fields with its stability and control technique.At present,the main intelligent well systems in the world include SCRAMS,Direct Hydraulic,Digital Hydraulic that belongs to WellDynamics Company,InForce and InCharge that belongs to Baker Oil Tools Company,RMC that belongs to Schlumberger Company.This paper compares different types of systems and their characteristics,recommending the InCharge system as the intelligent well system for East China Sea Oil Field according to its geological and reservoir conditions. | HAN Dan-xiu LI Xiang-fang FU Li-xia | 2008 | International Journal of Plant Engineering and Management2008，13，4： | 6 |
| 7 | A Review of the Discrete Facility Location Problem显示文摘In this paper we attempt to classify discrete facility location problems in the right perspective and propose discrete facility location problems that include: median problems, covering problems, center problems, multi-commodities problems and dynamic problems on the basis of former research by other scholars. We consider vehicle routing location problems, inventory-location problems and hub problems as a recent research field of discrete facility location problems according to literature from the last 10 years. | WANG Fei XU Yu LI Yi-xue | 2006 | International Journal of Plant Engineering and Management2006，11，1： | 6 |
| 8 | Study of Failure Diagnostic Methods and Intelligent Diagnostic System for Reciprocating Compressors显示文摘Three categories of failure diagnostic methods for reciprocating compressors are classified according to the signals adopted by the diagnosis. They are parameter method, vibration method, and oil analysis method. In this paper, the applicable range and operational difficulties of these methods are discussed on the basis of analysis and induction upon normal failure. It is proposed that a compressor’s normal failure can be divided into thermodynamical property failure and mechanical function failure. As to the former, the parameter method that takes a cylinder pressure signal as the main diagnostic signal may be applied; and as to the latter, the vibration signal frequency spectrum can be used to diagnose. At the same time, the structure of an intelligent diagnostic system based on neural networks is introduced, and its schematic is given. | LIU Wei hua, ANG Hai song Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P.R.China | 2002 | International Journal of Plant Engineering and Management2002，7，3： | 5 |
| 9 | Wear Fault Diagnosis of Machinery Based on Neural Networks and Gray Relationships显示文摘In this paper, the regular characteristic of wear particles related to fault type of machines based on condition monitoring of reciprocal machinery is discussed. The typical wear particles spectrum is established according to the equipment structure, friction and wear rule and the characteristic of wear particles; The identification technology of wear particles is proposed based on neural networks and a gray relationship; an intelligent wear particles identification system is designed. The diagnosis example shows that this system can promote the accuracy and the speed of wear particles identification. | CHEN Chang zheng, LI Qing, SONG Hong ying Diagnosis and Control Center, Shenyang University of Technology, Shenyang 110023, P.R.China | 2001 | International Journal of Plant Engineering and Management2001，6，3： | 5 |
| 10 | Application of Multi-sensor Information Fusion in the Fault Diagnosis of Hydraulic System显示文摘Aiming at the problem of incomplete information and uncertainties in the diagnosis of complex system by using single parameter,a new method of multi-sensor information fusion fault diagnosis based on BP neural network and D-S evidence theory is proposed. In order to simplify the structure of BP neural network,two parallel BP neural networks are used to diagnose the fault data at first; and then,using the evidence theory to fuse the local diagnostic results,the accurate inference of the inaccurate information is realized,and the accurate diagnosis result is obtained. The method is applied to the fault diagnosis of the hydraulic driven servo system( HDSS) in a certain type of rocket launcher,which realizes the fault location and diagnosis of the main components of the hydraulic driven servo system,and effectively improves the reliability of the system. | LIU Bao-jie YANG Qing-wen WU Xiang FANG Shi-dong GUO Feng | 2017 | International Journal of Plant Engineering and Management2017，22，1： | 5 |
| 11 | Resource-constrained Project Scheduling with Overlapping Activities Based on Extended Dependency Structure Matrix显示文摘Dependency Structure Matrix( DSM) is a successful and powerful tool for representing and analyzing dependencies between the items,but for external influencing factors it cannot charge effectively. This paper sets the stage for connecting the activities and resources,which not only considers information flow but also resources constrains.We first introduce the DSM to represent the degree of overlapping between the activities in a project. Then we present the Extended DSM combined former DSM and resource factors to calculate the project duration. Finally,the practical significance of the Extended DSM is confirmed by an illustrative example. | BAI Li-biao SONG Hong-yan BAI Si-jun GUO Yun-tao | 2013 | International Journal of Plant Engineering and Management2013，18，4： | 4 |
| 12 | CFD Analysis and Optimization of Automobile Radiator based on STAR-CCM+显示文摘This research talks about the radiator cooling system of the automobile engine,the radiator' s fluidstructure interaction dynamics based on computational fluid dynamics( CFD) STAR-CCM+ software. The linear regression model of coolant determined by MATLAB software was imported into the user-defined field function of the software,using the standard K-Epsilon turbulence model to analyze temperature,pressure and velocity changes of the coolant in the radiator channel. In order to improve the efficiency of the radiator,it is necessary to analyze the structure of two kinds of heat sinks,and get better heat transfer effect. | XU Xiao-wen SUN Hou-huan HUA Guang-sheng YIN Zhen-hua | 2017 | International Journal of Plant Engineering and Management2017，22，4： | 4 |
| 13 | A Method for Gear Fault Diagnosis Based on the Empirical Mode Decomposition显示文摘According to the characteristics of gea r fault vibration signals, a method for gear fault diagnosis based upon the empiri cal mode decomposition (EMD) is proposed in this paper. By using EMD, any compli cated signal can be decomposed into a finite and often small number of intrinsic mode functions (IMFs), which are based upon the local characteristic time scale of the signal. Thus, EMD is perfectly suitable for non-stationary signal proce ssing and fault characteristics extracting. It is well known that a gear vibrati on signal consists of a number of frequency family components, each of which is a modulated signal. Thus, we can use EMD to decompose a gear fault vibration sig nal into a number of IMF components, some of which correspond to the frequency f amilies, and the others are noises. Therefore, the frequency families can be sep arated and the noise can be decreased at the same time. The proposed method has been applied to gear fault diagnosis. The results show that both the sensitivity and the reliability of this method are satisfactory. | CHENGJun-sheng YUDe-fie YANGYu | 2004 | International Journal of Plant Engineering and Management2004，9，4： | 4 |
| 14 | Structure Design and Finite Element Analysis of a Connection Assembly Program显示文摘The new connection assembly program contains four cone-shapes of fixed welders and four bolts.It is used for connecting the cover assembly of a Down-The-Hole( DTH) drill rig and its chassis.The design feasibility and reliability are evaluated according to the mechanical calculation and finite element method. | WANG Ru-ling | 2014 | International Journal of Plant Engineering and Management2014，19，1： | 4 |
| 15 | Identifying Human Capital Externality:Evidence from China显示文摘Using data from two well-known individual surveys in China,we estimate human capital externality.We find a positive and statistically significant effect of city-level human capital on individual earnings.Fixed-effects estimates show a one-year increase in city average education could increase individual earnings between 7.3%and 8.9%.Our IV estimate indicates a 7.6%increase.This finding confirms a long-held belief by economists that there are external benefits of education that are not captured by the individuals who invested in human capital.By extension our finding also offers a justification for an active role of the government in promoting education.We also find that the estimated effect of human capital externality is larger in coastal cities than in non-coastal cities and is larger in the non-state sector than in the state sector.We ascribe these heterogeneities to differences in institutional and technological environments across cities and sectors. | Yunling Liang Zhiqiang Liu Haizheng Li | 2016 | Journal of Management Science and Engineering2016，1，1： | 4 |
| 16 | Maintenance and Condition-Based Maintenance显示文摘The evolution of maintenance management is briefly introduced in this paper, from corrective maintenance to preventive maintenance. First, a range of condition monitoring and fault diagnosis techniques developed in different industries are surveyed; Second, many methods of condition monitoring are presented; Third, mathematical methods used in condition monitoring are given; Then the merits and shortcomings are discussed.Efficient maintenance policies are of fundamental importance in system engineering because of their fallbacks into the safety and economics of plant operation. Applying condition-based maintenance to a system can reduce the cost and extend the availability of facilities. With the advent of personal computers as fast and cost effective machines for data acquisition and processing of multiple signals some shortcomings mentioned in condition monitoring could be solved or reduced to some extent. These PCs can be a solution as a condition monitoring based maintenance system. | DING Jin-hua WANG Xue-Jun ZHOU Rong LIN Min Olsson Erland | 2005 | International Journal of Plant Engineering and Management2005，10，3： | 4 |
| 17 | Comparison of Two Control Charts for Correlated High Dimensional Data Streams显示文摘Detecting high dimensional correlated data streams is becoming more and more popular for real alarming time out of control in many practical application. But in order to finding the stopping time as soon as possible after the drift occurred in the activity,we should choose appropriate control chart. This article compared the ARL' s of the CUSUM and EWMA charts out of control based on same average run length in control.Calculating the sum and max of CUSUM and EWMA statistics respectively,giving appropriate control limit for control charts,and comparing the balance between robustness and sensitivity. | BIAN Shui-xian ZI Xue-min | 2017 | International Journal of Plant Engineering and Management2017，22，1： | 4 |
| 18 | A dynamic panel data approach and HCW's method:Assessing the effect of China(Shanghai)Free Trade Zone on local GDP显示文摘We propose a simple-to-implement dynamic panel data method to evaluate the impacts of place-based policies.The idea is to exploit both the cross sectional dependence and the serial correlation within a panel and implement a semi difference-in-difference decomposition.Different from the method by Hsiao et al.(2012),the proposed model is easy to implement statistical inferences and can incorporate multiple treated groups at different time thresholds.We use the proposed method to explore the effect of the Free Trade Zone(FTZ)policy implemented in Shanghai at the end of 2013 on local GDP growth rate and compare it with that from Hsiao et al.(2012).The empirical results show that the FTZ does have a positive effect on the local GDP growth rate and it adds 1:21:8 percent point to the growth rate of the GDP per capita for Shanghai in 2014 which is about one fourth to one third of the total GDP growth rate per capita.This effect largely comes from the growth of the tertiary sector.The results lend support to the duplication of FTZ policy to other cities and provinces in China. | Jun Cai Kai Xin Yahong Zhou | 2021 | Journal of Management Science and Engineering2021，6，3： | 4 |
| 19 | Information Technology Applications to Maintenance Management显示文摘Application of IT (Information Technolo gy ) to equipment management have not been adequately made. A system using Benefit Evaluation Ladder is described for evaluating the need for IT applications to ma intenance management. A systematic evaluation scheme for Computerized Maintenanc e Management System (CMMS) is presented. | Abdul Raouf S.I. | 2003 | International Journal of Plant Engineering and Management2003，8，3： | 4 |
| 20 | Plans and Measures for Avoiding Casting-Air-Pollution显示文摘This article presents plans of preventi ng casting-air-pollution in practice, and some avoiding methods in detail. In mo dern times, environment protection is looked high upon day by day; green-castin g thus becomes more and more important. | ZHOU Jian Department of Mechanical Engineering, Hunan Building Material College , Henyang 421008, P.R.China | 2003 | International Journal of Plant Engineering and Management2003，8，3： | 4 |
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