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2009 Vol. 35, No. 2

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New technique of contour adjustment for high precision reflector panels
Zhou Xianbin, Hao Changling, Li Dongsheng, Li Xiaoxing
2009, 35(2): 127-131.
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Abstract:
The high precision of antenna reflector panels is the key to develop the technique of high performance compact antenna test range. A new technique of contour adjustment for high precision sandwich reflector panels was developed. The principle of the contour adjustment of panels was analyzed. The cor...
Microstructure and property analysis of 0Cr18Ni9Ti joints welded by ultra-sonic pulse tungsten-inert-gas welding technology
Qi Bojin, Xu Haiying, Zhang Wei
2009, 35(2): 132-136.
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Abstract:
An ultra-sonic pulse tungsten-inert-gas (TIG) welding power source based on new type IGBT topology was developed. 0Cr18Ni9Ti austenitic stainless steel workpieces were welded by ultra-sonic pulse TIG welding and conventional direct current TIG welding respectively. In order to study the difference b...
Human-computer interaction technology of virtual assembly system for complex products
Zhao Gang, Wang Chao, Hou Wenjun, Jin Yue
2009, 35(2): 137-141.
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Abstract:
Based on the dual computer synchronized desktop virtual reality equipment, a virtual assembly system for the complex products was introduced. The human-computer interactive technology in the system was studied. The product information management technology was proposed on an algorithm of the SOP (st...
Static tensile crack behavior of brazed joints of dissimilar metals tubes in aerospace system
Qu Wenqing, Lu Jiehong, Zhuang Hongshou
2009, 35(2): 142-145.
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Abstract:
The dissimilar metals(such as Titanium alloy and stainless steel) thin-wall small-diameter tube structrues in aerospace propulsion system were bonded, using high frequency induction brazing process. Their qualities and properties are largely superior to the bolt connection tubes structures. The stat...
Analyzing and controlling distortion of aircraft aluminium alloy structural part in NC machining
Mei Zhongyi, Gao Hong, Wang Yunqiao
2009, 35(2): 146-150.
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Abstract:
NC machining distortion and the reason which leads to machining distortion were studied by analyzing the typical aircraft wing rib aluminium alloy structural part on which distortion often occurs. The part NC machining distortion was analyzed and compared by using the methods of theoretical model, f...
Forming press and spring-back analysis of curving sandwich structure
Guan Shiwei
2009, 35(2): 151-153.
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Abstract:
Aiming at the mechanics problem during the manufacture process of curving sandwich structure, the changes of the bending stiffness were analyzed, the forming theories were explained and the calculation formulas of bending stiffness were found. By discussing the calculation method of the forming pres...
Experiment of sheet metal on laser bending
Cai Yougui, Wang Xiufeng, Chen Guangnan, Jurgen Silvanus
2009, 35(2): 154-157.
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Abstract:
The process of laser bending for aluminium alloy AA6056 used to produce large airplane panel was studied through experiment. The thickness of specimens was selected 1.0 mm and 2.5 mm separately. The different groups of the technological parameters were used to analyze contrastively in the process of...
Redundancy and hot swap technology in industrial Ethernet EtherCAT
Huan Ji, Xiao Wenlei, Liu Yanqiang
2009, 35(2): 158-161.
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Abstract:
EtherCAT is a type of real-time industrial Ethernet protocol for data communication in automation control system. Redundancy is an important way for hot swap and improving the communication reliability. The architecture, principle and frame structure of the EtherCAT were introduced. The fault tolera...
Elastic constant matrix measurement of SiCp reinforced aluminum metal matrix composites
Zhou Zhenggan, Gao Yifei, Lü Yan, He Fangcheng
2009, 35(2): 162-165.
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Abstract:
In order to reveal the relationship between SiCp volume content and mechanical property of SiCp reinforced aluminum metal-matrix composites (MMC) fabricated by powder metallurgy, the elastic constant matrix of the standard samples with different SiCp volume content were measured with elastic wave me...
Basal worm-designing method of face-gear hob
Wang Yanzhong, Wu Canhui, Ge Xuyang, Zhang Li
2009, 35(2): 166-169.
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Abstract:
Face-gear drives become the main direction of research for aeronautical drives because of their special advantages. The applied coordinate systems of face-gear were set up and the equation of face-gear tooth surface was established, then the face-gear tooth surface constrain conditions for dedendum ...
Modified Grangeat algorithm as apply to a circular scan orbit
Wei Dongbo, Zhang Likai, Fu Jian
2009, 35(2): 170-173.
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Abstract:
To compensate for artifacts in reconstructed images of industrial computed tomography (ICT), Grangeat type exact cone beam reconstruction algorithm was studied. Grangeat algorithm based on flat detector was implemented by the steps of computing first partial derivatives of cone-beam projection data ...
Modeling and finite element analysis of thermal barrier coatings in IR NDT
Guo Xingwang, Ding Mengmeng
2009, 35(2): 174-178.
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Abstract:
The transient heat conduction of TBC(thermal barrier coatings) structures in TNDT(thermal non-destructive testings) was described by an axisymmetrical model in a cylindrical coordinate, and the corresponding physical model was constructed. The temperature field of TBC structures stimulated by a heat...
Experimental analysis of minimal quantity lubrication in milling high-strength steel
Yuan Songmei, Liu Xiaoxu, Yan Lutao, Liu Qiang
2009, 35(2): 179-182.
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Abstract:
In order to validate the influences that MQL(minimal quantity lubrication)brings to the tool wear and surface roughness, a MQL system was developed. It used the difference of pressure that caused by the compressed air flow through the decrescent areas to imbibe the cooling fluid in the box, and tran...
Dynamic analysis of lunar lander
Wang Chunjie, Guo Yong
2009, 35(2): 183-187.
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Abstract:
By the modal analysis of lunar lander based on MSC.Patran/Nastran, the main factors affecting the mode frequency were retrieved, including the dimensions of the machine and the method of the assembled part. The influence brought about by modifying the thickness of the piston barrel and piston rod on...
Finite element simulation of machining deformation for aeronautical monolithic component
Zhang Yidu, Zhang Hongwei
2009, 35(2): 188-192.
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Abstract:
Machining deformation has been a bottle-neck issue in aeronautical manufacturing field. Based on finite element simulation, the influence of original residual stresses on the deformation in the process of machining for aeronautical monolithic component was studied. The redistribution law of residual...
Topological modeling system of engineering CAD based on template data library
Liu Jinghua, Wang Lei
2009, 35(2): 193-196.
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Abstract:
Topological pipe-net models of engineering CAD were established using templates data library. The topological templates data library was constituted of many topological models each of which was abstracted from engineering object and had its unique characters. The loosely coupled three-tier architect...
Fuzzy recognition and object-capture algorithm for robot vision systems
Huang Rongying
2009, 35(2): 197-200.
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Abstract:
With reference to the object recognition process of human eyes and minds, the region segmentation and fuzzy recognition algorithms were established for robot vision systems in order to deal with the problem of the object-capture recognition. The gray-scale and chromaticity of images were taken as a ...
Information modeling of product design process for virtual prototyping
Xiao Lifeng
2009, 35(2): 201-204.
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Abstract:
To control the various simulation models and design activities, the features of information modeling of virtual prototyping design were discussed, and an integrated information model was proposed. Product design object was abstracted as property unit of static and dynamic characters and operating un...
Distortion mechanism and mechanics performance of eggshell-like gore structure
Jiao Hongjie, Zhang Yidu, Chen Wuyi, Zhang Hongwei
2009, 35(2): 205-208.
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Abstract:
From the point of structure biomimetic, the model of eggshell-like thin core structure was put forward. From the test of model, the press distortion mechanism was concluded and the carrying capacity of egg-like thin shell core structure was depended on material, size and form angle. Applying thin sh...
Evolution process of quality BOM for product process
Tang Xiaoqing, Hu Yun
2009, 35(2): 209-214.
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Abstract:
A method based on BOM (bill of material) was proposed to organize quality data throughout product process. Quality assurance process for product process was proposed, and then the characteristics of quality management for product process were ascertained. The definition of quality BOM was specified ...
Application of online simulation in production planning and scheduling
Yang Jianjun, Kou Yi
2009, 35(2): 215-218.
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Abstract:
Several critical technologies of planning and scheduling including data modal, application frame of online simulation system and system integration were studied. The application of the object-oriented simulation system was proposed and implemented to solve the problems of system initialization and s...
Architecture and accomplishment techniques of agile manufacturing data source
Qiao Lihong, Liu Wei
2009, 35(2): 219-222.
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Abstract:
To satisfy the agility requirement of manufacturing data management in product lifecycle management, an approach of agile source of manufacturing data (ASMD) for data management was proposed. Based on the analysis of the application requirement of agile manufacturing data, the ASMD was defined as ar...
Ontology-based semantic similarity computation for maintenance CBR
Wen Jingqian, Li Qing
2009, 35(2): 223-226.
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Abstract:
CBR(case-based reasoning) finds solutions for new problems based on previous experience. It is suitable for such applications as aircraft maintenance knowledge acquisition, representation and reuse. With consideration of some special characteristics of aviation maintenance, such as spot recording, r...
Method of multi-domain topology optimization for continuum structures
Guo Lianshui, Punit B, i
2009, 35(2): 227-230.
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Abstract:
To solve the problem of continuum-based structural topology optimization under large deformation loading, the hybrid cellular automata (HCA) paradigm for multi-domain topology optimization technique was proposed, a relative density-based material parameterization was developed to model both elastic ...
Hybrid location method for home service robot based on intelligent space
Wang Tianmiao, Tao Yong, Wei Hongxing, Chen Diansheng
2009, 35(2): 231-235.
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Abstract:
Based on the requirement of service robot operation in home environment, an intelligent space framework for service robot was proposed,which was composed of smart objects, RFID (radio frequency identification) tags, wireless access points, home server and a service robot. After that, the hybrid loca...
Super-harmonic resonance and complex movement analysis of flexible manipulator in temperature field
Yun Chao, Cui Yihui, Wang Wei, Tang Qing
2009, 35(2): 236-240.
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Abstract:
In order to study on nonlinear vibration of flexible manipulator, a mathematical model of mechanical system considering damping, material nonlinearity, temperature variation and axial excitation was established using the Garlerkin method. Furthermore, the adequate and essential conditions for homocl...
Pose error analysis of robot in three dimension
Ding Xilun, Zhou Lelai, Zhou Jun
2009, 35(2): 241-245.
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Abstract:
In terms of 5 parameters model as the kinematics model of robots, according to the transferring relationship of errors between the adjacent linkages, with the position and orientation modeling matrix method, the position and orientation error model of robot in three dimension was built, and the posi...
Multiscale fyzzy-adaptive Kalman filtering methods for MEMS gyros random drift
Chen Diansheng, Shao Zhihao, Lei Xusheng, Wang Tianmiao
2009, 35(2): 246-250.
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Abstract:
A new time series method was proposed to construct the random drift model for the micro electro mechanical sensor (MEMS) gyro. Based on the wavelet multi scale analysis method, the gyro random drift data was decomposed to a series of scale gyro drift data with depth of 4 using bior1.5 wavelet, each ...
Basic research on configuration of climbing worm robot
Wang Wei, Wang Kun, Li Dazhai, Zong Guanghua
2009, 35(2): 251-255.
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Two novel module climbing caterpillar kinematics models according to the vermicular motion of the pine caterpillar and inchworm were presented. The differences of two models were indicated after the analysis of the valid gaits and climbing safety of them. Although the pine caterpillar model with all...
Locomotion gait control algorithm for climbing worm robot
Li Dazhai, Wang Wei, Wang Yingying, Qi Jinghao
2009, 35(2): 256-260.
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Abstract:
A wall-climbing worm-like robot based on the bionics principle was designed and the structure feature of the climbing worm robot was analyzed. According to the structure and locomotion feature of the climbing worm robot and the bionics principle, the trapezoidal wave gait and triangular wave gait we...
Optimal design for passive robot in rough terrain based on VCM
Liu Jinhua, Bi Shusheng, Sun Minglei, Pei Xu
2009, 35(2): 261-265.
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Abstract:
The mechanism with the characteristics of virtual center of motion (VCM) is one of the limited degree of freedom (DOF) mechanisms substantively. The VCM was employed in robots which were mobile on rough terrain for its special characteristics. The front mechanism was optimized through analyzing the ...

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