Customers’ Kansei information on product geometry features is obtained through Web survey system. Customers’ Kansei evaluation is in fuzzy expression and then multi-dimension fuzzy-association-rule technology is applied. Andfinally, high-frequency sets in which the geometry features of products are highly associated with customers’ Kansei information are generated. Furthermore, the learning ability of BP neural network are utilized to train, predict and integrate association rules from different time. And then customers’ Kansei knowledge mining is implemented, which provides new ideas for product aid design and enterprise decision-making.

Anticipatory failure determination (AFD) is failure analysis method developed based on TRIZ, which utilizes Algorithm of Inventive-Problem solving in TRIZ theory in failure analysis in an inverted pattern and meantime integratescontradiction analysis and solving tools in TRIZ theory to eliminate potential failure. AFD is mainly used to failure prediction analysis in product design. In this paper, principle of AFD and detailed work flow of its application in failure prediction are provided, and then an illustration of applying AFD in failure prediction analysis in design of a Chinese traditional dropping pill machine is analyzed.

Selection of response surface method with highly accurate and efficient approximation is greatly important in its application. The approximation function form, parameter estimate method and its basic features are described first; and then four representative functions are introduced and approximation of the abovementioned four functions is carried out through response surface modeling method; finally comparative analysis of this modeling method is conducted from the aspect of approximation accuracy and efficiency. The results indicate that response surface method based on radial basis function is the most suitable for practical problems.

Multi-signal modeling methodology is a simple but efficient knowledgerepresentation method which has been adopted in the application of TEAMS by ASICompany in U.S. for testability analysis, testability prediction, reliability analysis and fault diagnosis. Research on modeling and analyzing method of systemtestability based on multi-signal model is carried out. Combining illustrations, analysis process and algorithm of multi-signal modeling, fault-test dependencymatrix, undetected faults, ambiguity group, redundant tests, fault masking, FDR, FIR, etc. The result of the above algorithm is the same as the one of TEAMS. Though testability analysis based on multi-signal model can not offer a comprehensive conclusion and have defects to improve, it is easy to implement computer aid analysis, which is valuable for development of system testability tool.

To increase A-scan signals’ time resolution of thin multilayer composite materials in ultrasonic nondestructive testing (UNDT), a new approach of deconvolution technique based on wavelet multi-resolution analysis was proposed. To solve the drawbacks of limited resolution in time domain and poor stability of conventional deconvolution technique when ratio of signal and noise decreased,wavelet was used in deconvolution to decompose ultrasonic echo signal in variousbands. And then one of these bands was selected and after reconstructing this band, deconvolution was applied. Computer simulation results indicated that comparing with conventional deconvolution technique, this method improved a lot in increasing resolution in time domain (especially under low ratio of signal and noise).

The impeller of submersible mixer in some wastewater treatment plant,whose parts are imported from other countries, is heavily abased. To solve this problem and realize domestic manufacture, based on reverse engineering theory, utilizing 3 coordinates measuring machine and applications of Surface and Pro/E,3D solid model of impeller are gained. The gained impeller model accords with the physical one with high accuracy. By using this model, the manufacture of its mould and research on abrasion-resistant performance as well as the implementation of domestic manufacture of its parts are completed.  The new impeller has been employed in this plant and passed field running experiment. The results indicate that its mixing and propelling performance is excellent and abrasion does nothappen in more than three months. It has prominent economic and social benefit.

FEA of spade arm assembled in tree potter is carried out by application of Pro/E and ANSYS, to analyze the main reason why the main working components-pade arm, are broken while working. Stress and deformation of spade arm is calculated and the optimization on structure is proposed. By comparing the analysis result, it is concluded that the reason why broken is defects in structure design of spade arm and insufficient control of oil cylinder pressure, which provides reference for optimization design of spade arm.

In the supporting and leveling structure of big tonnage optical instrument, manpower leveling is replaced by automatic one. Non-interference method f three-point-supporting and mechanical lags controlled by computer is selected for leveling. The method and principle of automatic supporting and leveling is presented. The 13 different instances possibly appearing are listed and then the method for confirming the beginning state and benchmark is put forward. The whole structure of mechanical lag and parameter calculation of its main parts are introduced. The result indicates that mechanical lag structure is not only compact but can support and level steadily, and the adopted three-point-supporting and leveling are brief and fast.

3D visual and parameterized design is a tendency of modern mechanicaldesign. A 3D visual design software for gear shaper cutter is developed in the redeveloped tool of AutoCAD, Visual Basic for Application. The 3D parameterized model of gear shape cutter is established in AutoCAD. Through the generated 3D solid model, finite element analysis of gear shape cutter is conducted in Pro/Engineer and ANSYS. Moreover, a hardened straight bevel gear cutter is manufactured. Its attrition is analyzed, which provides advantages for rapid development of gear shape cutter.

Structure design of elastomer is the key step of yarn tension sensor design. Finite element model of elastomer on the yarn tension sensor was established and the structure of elastomer was analyzed by finite element modal analysis, and then the natural frequency and mode of elastomer were obtained. The natural frequency of elastomer was elevated through optimization of elastomer in computer simulation environment, and finally the stability of yarn tension sensor was improved.

Through analysis on principle of spatial rolling mechanism of a new type of rolling shear, its explicit 3D nonlinear path equation was established by taking coordinates of key points as variables. Then the solution theory of locations between guide rod and frame hinged point was modified. Depending on the development of a large-scale 2 800 mm rolling shear with single-shaft and doubleeccentricity in some large iron steel plant, the kinematics path of this mechanism is simulated. The results of calculation of overlapping between upper and lower shear blade and horizontal offset of blade arc showed that application of explicit path equation and the revised guide rod restraint theory are an important means to improve path solution accuracy, to decrease horizontal displacement of blade arc and to increase evenness degree of blade overlapping. On-site shear overlapping, horizontal comprehensive displacement of blade arc validated the correctness of the above theory and revised restraint theory.

Firstly, the static forces of multipoint and iso-pressing pile holdermechanism of hydraulic static pile driver were analyzed. And then the computation formula of pile holder force of each two-piece clamp and perpendicular acting force between each two-piece clamp and hydraulic static pressed precasting pile were obtained. Finally, research and analysis on this formula are carried out, whose conclusion is beneficial for design and use of multipoint and iso-pressing pile holder mechanism of hydraulic static pile driver.

 The FLUENT code is used to simulate the gas flow-field in flow-guidedstructure of plane vortex classifier to optimize its geometrical and operational parameters, which focuses on the effect of spiral case and guide vanes on the stable flow-field establishment. Through statistical analysis of X-Y plot data obtained from numerical simulation relation curve between average velocity deviation, average pressure deviation of outer circle of guide vanes and air volume ofinlet, eccentricity of spiral case, diameter of positioning base circle, numberof guide vanes are established and a series of optimal objectives are obtained, which provides reference for design of high efficiency air vortex classifier. Through  manufacture the prototype SX-35 and sieving residue of fly ash, the correctness of the analysis result of CFD in engineering application is qualitatively validated.

The finite-difference time-domain (FDTD) method is utilized to coupling effect of electromagnetic pulse and computer box. Physical model of computer box is established and through analyzing the changing curves of change of electromagnetic field with time and change of coupling coefficient with frequency, thecoupling regulation of electromagnetic on computer box is obtained. It is as follows: electromagnetic pulse has a great effect on components of computer box through apertures and slots, the coupling energy in the box increases first and then decreases. The existence of components decreases the shielding effectiveness and resonant frequency. The results can be employed to settle electromagnetic compatible design and protection of interference of computer box.

By integrating knowledge rule model and analysis mathematical model, the two-leveled real-time expert control system (ECS) was established. With real-time expert system (ES) with self-learning and self-adaptation ability, the optimal temperature, length and location of calcinations’ zone were obtained through expert optimization way. And real-time control system (RTCS) adopted self-adjusting algorithm based on CARMA model and least square method and classicPID algorithm to control the flux and negative pressure. The system put into operationat the end of 2003 and the long-term operation showed that this system was reliable and practical; besides, the product quality was improved with the reduction of energy consumption.

Flattening of 3D surface is one of the most difficult problems in thedevelopment of CAD system for stuffed toys. So far there is still no commercialapplication with the function of flattening 3D surface for such toys. By adopting spring-mass model, 3D surface flattening is implemented through optimizationalgorithm. The geometry constraints during optimization are solved by graphic method, and this method achieves the expecting results.

Firstly, concept and research situation of digitized mining domestic and overseas are analyzed. And then fundamental meaning of digitized mining is given from three aspects, namely business, data and technique and furthermore theapplication mode and physical system of digitized mining are proposed through the abovementioned aspects. Finally, a three-layered and four-leveled network system is developed and key techniques involved in each layer are described with details. On the basis of this system, scheme and operating situation in some coal mine are given.