A Multidisciplinary Optimization Architecture for A Distributed Computing Environment

ＡＭｕｌｔｉｄｉｓｃｉｐｌｉｎａｒｙＯｐｔｉｍｉｚａｔｉｏｎＡｒｃｈｉｔｅｃｔｕｒｅｆｏｒＡＤｉｓｔｒｉｂｕｔｅｄＣｏｍｐｕｔｉｎｇＥｎｖｉｒｏｎｍｅｎｔＯｕＳｏｎｇ，ＺｈｏｎｇＭｕｌｉａｎｇ，ＭａｏＺｏｎｇｙｕａｎａｎｄＺｈｏｕＱｉｊｉｅＤｅｐａｒ...     

A Modification of SOM Network(SLFM) and Its Applications in Tool Wear Monitoring and Quality Control

ＡＭｏｄｉｆｉｃａｔｉｏｎｏｆＳＯＭＮｅｔｗｏｒｋ（ＳＬＦＭ）ａｎｄＩｔｓＡｐｐｌｉｃａｔｉｏｎｓｉｎＴｏｏｌＷｅａｒＭｏｎｉｔｏｒｉｎｇａｎｄＱｕａｌｉｔｙＣｏｎｔｒｏｌ★ＺｈｕＭｉｎｇｑｕａｎＣａｉＹｏｎｇｘｉａＤｅｐａｒｔｍｅｎｔｏｆＡｅｒｏｎ...     

A Measuring Technique of Dynamic Torque on Continuous-drive Friction Welding

ＡＭｅａｓｕｒｉｎｇＴｅｃｈｎｉｑｕｅｏｆＤｙｎａｍｉｃＴｏｒｑｕｅｏｎＣｏｎｔｉｎｕｏｕｓｄｒｉｖｅＦｒｉｃｔｉｏｎＷｅｌｄｉｎｇＬｉｕＪｉｎｈｅＣｈｅｎＪｉｎｇＬｕｏＪｉａｎＮｏｒｔｈｗｅｓｔｅｒｎＰｏｌｙｔｅｃｈｎｉｃａｌＵｎｉｖｅｒｓｉｔｙ...     

A Web-based Condition Monitoring and Diagnostic System of Rolling Mill

1　ＩｎｔｒｏｄｕｃｔｉｏｎＢｅｉｎｇｔｈｅｅｓｓｅｎｔｉａｌｅｑｕｉｐｍｅｎｔ,ｏｎｃｅｔｈｅｒｏｌｌｉｎｇｍｉｌｌｂｒｅａｋｓｄｏｗｎｕｎｅｘｐｅｃｔｅｄｌｙｔｈｅｌｏｓｓｅｓｃａｕｓｅｄｂｙｕｎｓｃｈｅｄｕｌｅｄｓｈｕｔｄｏｗｎａｎｄｑｕａｌｉｔｙａｂｎｏｒｍａｌｉｔｙｃａｎｂｅｖｅｒｙｓｅｖｅｒｅ.Ｔｏｄｅａｌｗｉｔｈｔｈｉｓｐｒｏｂｌｅｍ ,ｍｏｒｅａｎｄｍｏｒｅｌａｒｇｅｓｔｅｅｌｗｏｒｋｓｉｎｔｈｅｗｏｒｌｄｒｅｓｅａｒｃｈｅｄｏｎｔｈｅＣＭＡＦＤＳｏｆａｒｏｌｌｉｎｇｍｉｌｌａｎｄｄ…     

Time-Frequency（scale） Analysis and Diagnosis for Nonstationary Dynamic Signals of Machinery

ＴｉｍｅＦｒｅｑｕｅｎｃｙ（ｓｃａｌｅ）ＡｎａｌｙｓｉｓａｎｄＤｉａｇｎｏｓｉｓｆｏｒＮｏｎｓｔａｔｉｏｎａｒｙＤｙｎａｍｉｃＳｉｇｎａｌｓｏｆＭａｃｈｉｎｅｒｙＨｅＺｈｅｎｇｊｉａＭｅｎｇＱｉｎｇｆｅｎｇＺｈａｏＪｕｙｕａｎＬｉｕＸｉｎｍｉｎｇＤｅ...     

Study on The Identification System of Deteriorated Conditions for The Model of Cable-stayed Bridges Applying A Self-Organizing Feature Map

ＳｔｕｄｙｏｎＴｈｅＩｄｅｎｔｉｆｉｃａｔｉｏｎＳｙｓｔｅｍｏｆＤｅｔｅｒｉｏｒａｔｅｄＣｏｎｄｉｔｉｏｎｓｆｏｒＴｈｅＭｏｄｅｌｏｆＣａｂｌｅｓｔａｙｅｄＢｒｉｄｇｅｓＡｐｐｌｙｉｎｇＡＳｅｌｆＯｒｇａｎｉｚｉｎｇＦｅａｔｕｒｅＭａｐＨｕＸｉｏ...     

Mercury Lamp Asisted MOCVD of Doped Stannic Oxide

ＭｅｒｃｕｒｙＬａｍｐＡｓｉｓｔｅｄＭＯＣＶＤｏｆＤｏｐｅｄＳｔａｎｎｉｃＯｘｉｄｅＲｅｎＰｅｎｇｃｈｅｎｇＴａｎＺｈｏｎｇｋｅＬｕｏＷｅｎｘｉｕ（ＣｅｎｔｒｅｆｏｒＦｕｎｃｔｉｏｎａｌＭａｔｅｒｉａｌｓＲｅｓｅａｒｃｈ，ＱｉｎｇｄａｏＩ...     

Technical Innovation in a Balancing Machine with Microcomputer

ＴｅｃｈｎｉｃａｌＩｎｎｏｖａｔｉｏｎｉｎａＢａｌａｎｃｉｎｇＭａｃｈｉｎｅｗｉｔｈＭｉｃｒｏｃｏｍｐｕｔｅｒＺｈａｎｇＪｉｎＤｏｎｇｆｅｎｇ－ＣｉｔｒｏｅｎＡｕｔｏｍｏｂｉｌｅＣｏｍｐａｎｙＬｔｄ．ＡｂｓｔｒａｃｔＴｈｉｓｐａｐｅｒｄｉｓｃｕｓｅｓ...     

A Novel Parsimonious Neurofuzzy Model Applied to Railway Carriage System Identification and Fault Diagnosis

ＡＮｏｖｅｌＰａｒｓｉｍｏｎｉｏｕｓＮｅｕｒｏｆｕｚｚｙＭｏｄｅｌＡｐｐｌｉｅｄｔｏＲａｉｌｗａｙＣａｒｉａｇｅＳｙｓｔｅｍＩｄｅｎｔｉｆｉｃａｔｉｏｎａｎｄＦａｕｌｔＤｉａｇｎｏｓｉｓＳ．Ｃ．Ｚｈｏｕ，Ｏ．Ｌ．Ｓｈｕａｉ＋，Ｔ．Ｔ．Ｗｏｎｇ?..     

Introduction of IJPEM

ＡＩＭＳＡＮＤＳＣＯＰＥＴｈｅＩｎｔｅｒｎａｔｉｏｎａｌＪｏｕｒｎａｌｏｆＰｌａｎｔＥｎｇｉｎｅｒｉｎｇａｎｄＭａｎａｇｅｍｅｎｔ（ＩＪＰＥＭ）ｉｓａｎｅｗｊｏｕｒｎａｌｐｕｂｌｉｓｈｅｄｂｙｔｈｅＮｏｒｔｈｗｅｓｔｅｒｎＰｏｌｙｔｅｃｈｎｉｃａｌＵ...     

机械教学动态图形演示系统

本文介绍了新开发的计算机辅助机械教学动态图形演示系统．本系统可用于机械设计和机械制造方面的教学．对于提高教学质量具有一定的意义．     

自适应结构振动主动控制技术及实验研究

本文详细论述了采用自适应滤波技术实现结构振动主动控制的原理和方法，并研制出自适应结构振动主动控制系统。自适应算法为最小均方（ＬＭＳ）算法，硬件是由ＴＭＳ３２０Ｃ２５组成的信号处理系统。运用该系统对一矩形薄板进行了振动主动控制实验，取得了良好的抵消振动效果和降低噪声辐射效果。     

粘土/橡胶的复合效应研究

本文着重研究以疏水性的橡胶为连续相、以经偶联改性的粘土矿物为分散相的多相体系的复合效应及其偶联反应条件,并利用红外吸收光谱对亲水性粘土矿物的表面偶联方式进行初步的探讨。     

A digital filter-based approach to the remote condition monitoring of railway turnouts

Railway operations in Europe have changed dramatically since the early 1990s, partly as a result of new European Union Directives. Performance targets have become more and more exacting, due to reductions in state support for railways and the need to increasing traffic. More intensive operations also place greater demands on the hardware of the railway. This is true for both rolling stock and infrastructure subsystems and components, particularly so in the case of the latter where the time available for maintenance is being reduced. The authors of this paper focus on the railway infrastructure, and more specifically on points. These are critical elements whose reliability is key to the operation of the whole system. Using intelligent monitoring systems, it is possible to predict problems and enable quick recovery before component failures disrupt operations. The authors have studied the application of remote condition monitoring to point mechanisms and their operation, and have identified algorithms which may be used to identify incipient failures. In this paper, the authors propose a Kalman filter for the linear discrete data filtering problem encountered when using current sensor data in a point condition monitoring system. The reason for applying Kalman filtering in this study was to increase the reliability of the model presented to the rule-based decision mechanism.     

A general solution to low-aspect-ratio flat-ship theory

A common characteristic of the various methods of modern planing analysis has been the assumption that the Froude number is high enough that gravity has negligible effect relative to convection in the fluid pressure. There are some experimental indications that it is not, with differences conjectured to be due to wave lift and drag associated with the divergent gravity-wave system in the surface flow field generated by the boat. Maruo (Schiffstechnik 72 (1967) 57) presents an integral equation for flat low-aspect-ratio planing hulls. Previous authors have attempted to develop a general solution to this integral equation with limited success. A general solution has been developed and the infamous singularity has been eliminated. The lift coefficients computed with the general solution agree with those presented by previous authors and more realistic (elliptical) pressure distributions have been obtained.     

论我国发展无石棉摩阻复合材料的途径

本文分析了无石棉摩阻复合材料研究的必要性及国外研究动态后,对我国摩阻材料增强纤维采用的玻纤、碳纤维、有机纤维、kevlar纤维、钢纤维和矿纤维作了各种比较试验,并论述了采用的可能性及现实性,提出在现阶段应当采用软玻璃纤维、碳纤维预氧丝、混杂纤维来研制中国的无石棉摩阻复合材料。      

采用改进Bingham模型的非线性汽车悬架的主共振

采用一种改进的Bingham模型描述汽车悬架中的非线性阻尼力，模型中的各参数具有明确的物理意义。都与阻尼器的特性有关。利用平均法研究了单自由度多频激励非线性汽车悬架系统的主共振，得到了一次近似解。然后，对理论解进行了数值验证，并研究了系统参数对主共振的影响，从而可以更加有效地控制汽车振动。     

Management of climatic heat stress risk in construction: A review of practices,methodologies, and future research

Climatic heat stress leads to accidents on construction sites brought about by a range of human factors emanating from heat induced illness, and fatigue leading to impaired capability, physical and mental. It is an occupational characteristic of construction work in many climates and the authors take the approach of re-engineering the whole safety management system rather than focusing on incremental improvement, which is current management practice in the construction industry. From a scientific viewpoint, climatic heat stress is determined by six key factors: (1) air temperature, (2) humidity, (3) radiant heat, and (4) wind speed indicating the environment, (5) metabolic heat generated by physical activities, and (6) “clothing effect” that moderates the heat exchange between the body and the environment. By making use of existing heat stress indices and heat stress management processes, heat stress risk on construction sites can be managed in three ways: (1) control of environmental heat stress exposure through use of an action-triggering threshold system, (2) control of continuous work time (CWT, referred by maximum allowable exposure duration) with mandatory work-rest regimens, and (3) enabling self-paced working through empowerment of employees. Existing heat stress practices and methodologies are critically reviewed and the authors propose a three-level methodology for an action-triggering, localized, simplified threshold system to facilitate effective decisions by frontline supervisors. The authors point out the need for “regional based” heat stress management practices that reflect unique climatic conditions, working practices and acclimatization propensity by local workers indifferent geographic regions. The authors set out the case for regional, rather than international, standards that account for this uniqueness and which are derived from site-based rather than laboratory-based research.     

高声强声源及其应用

本文介绍了４种高声强声源：１．单孔旋转阀；２．带中心杆的哈特曼发声器阵；３．喷流点声源；４．喷流反馈旋转发声器。本文还给出４种声源的用途，即分别应用于：１．流动管道中有限振辐波的传播研究；２．进气道吸声内衬的声阻抗测量技术；３．风洞声学环境的研究；４．利用高强的能来清灰除尘。     

一种新型的语音分析编辑合成系统

作者根据语音研究的需要，研制了一套集语音采集，分析，合成，修改，比较，放音、调整为一体。通过参数修正，中值平滑，Ｈａｎｎｉｎｇ窗滤波，鼠标画线式，数值直接修改参数的语音分析，编辑，合成系统。该系统对语音研究来说，可以大大地缩短分析合成时间，提高效率，探导各种参数的作用，各种分析合成方法的优劣，对整个语音的研究有其使用价值。本文通过语音分析编辑合成系统的结构，功能，应用３个部分来介绍这套系统。