Focusing on the problem of model dissevering from modeling to analysis of functionally gradient material, this paper proposed concurrent modeling and heat conduction analysis both using NURBS basis function, used poison equation as the control function of material field considering manufacture process to model functionally gradient material, solved material distribution with the method of isogeometric analysis, performed the optimization model of material distribution of functionally gradient material part with analyzing of the transient thermal conduction of the material, retrieved the optional result of material distribution by the method of active set. The result shows that the method of concurrent modeling with NURBS basis function of functionally gradient material and material distribution optimizing realized integrated modeling, analyzing and optimizing of gradient material.

      In order to achieve 3D digital measurement of large-scale equipment, based on OpenMVG (Open Multiple View Geometry), a technical framework, which is suitable for industrial photogrammetry, is generated. Firstly, the coded points in the set of images were identified and positioned, the matching relationships between multiple images were built by ID number, and the data interface for OpenMVG was established. Then, by means of OpenMVG solver, the 3D coordinates of the coded points at the normalized scale were solved. The actual scale factor was restored by using multiple scale bars arranged in the scene. Finally, the coordinates of the code points, the transformation matrix between the images and the camera parameters were obtained, which constitute the core parameters of the industrial photogrammetry framework and can meet many applications of industrial photogrammetry. Taking an airplane as a test object, which is in the space of 10m × 3m × 4m, the number of images by photogrammetry capturing is more than 500. The finally measured error with our method is less than 0.085mm. Compared with the current commercial photogrammetry system, the proposed method can achieve the same accuracy level with greater efficiency and expansibility.

      The 12th European conference on non-destructive testing was held in Gothenburg, Sweden, in June 2008. The conference brought together non-destructive testing technicians from all over the world to exchange the latest development and application of non-destructive testing technology in different fields. Components in the aerospace field often have the characteristics of complex surface structure and material properties, which makes it difficult for traditional ultrasonic testing methods to effectively evaluate the internal defects. Aiming at the research and application status of ultrasonic nondestructive testing technology in aerospace field, the latest research and development achievements of ultrasonic array, aircoupled ultrasonic and laser ultrasonic et al are introduced. The future development direction and trend of advanced ultrasonic testing technology in aerospace field are discussed. The key technologies and research difficulties of current ultrasonic testing technology are summarized.

      Based on the fast detection problem of aero-engine turbine Blades, a new differential eddy current sensor is developed with mechanical self-compensation, the research of automated eddy current testing experiment on turbine blade of aero-engine is developed with the five axis linkage contour automatic detection system. The results show that using the eddy current sensor with the automatic detection system is able to eliminate the lift-off signal, reduce jitter interference, and effectively improve the signal-to-noise ratio compared with manual detection. This method is expected to be applied to the metal with complex curved surface like turbine blade.

      With composite materials more and more widely used in the aerospace industry, the laser ultrasonic technique has been considered as an emerging advanced nondestructive testing technique. The principle and advantages of the laser ultrasonic technique have been analyzed, and the current development of the application of the technique in the areas of nondestructive testing of Laminate structure, complex composite structure, honeycomb sandwich structure, thermoplastic composites, and the evaluation of porosity has been discussed. A brief cost analysis of this technique has also been given in this paper. Finally, the existing problems and the future development trend of the application of the nondestructive testing technique in composite structures have been described. It has certain reference for the research and application of laser ultrasonic on the composite structure.

      Ceramic matrix composite is increasingly wide used because of many advantages such as high temperature resistance, corrosion resistance and high specific strength. However, various defects can be created in the production because of the limitation of raw material and manufacturing process, and those defects can be detected by ultrasonic inspection, CT, infrared thermal imaging, X-ray inspection and so on. Based on the micro-focus CT system, this article investigates the testing method of adjustment sheet parts made of ceramic based composite. It is verified that micro-focus CT system is capable of detecting sub-millimeter holes in the production, and the result of measurement is accuracy. Besides, the micro-focus CT can obtain clear images of defects such as inclusion, crack and wire break-off. Furthermore, this CT system can achieve the calculation of porosity rate in the material.

      There are a lot of difficulties in the process of CNC machining for open disk, such as small leading/trailing edge radius, difficult-to-machine materials, short tool life, complex CNC programming, long machining time, hard-tocontrol machining deformation, etc. The blisk grinding technique with CBN grinding wheels presented in this paper aims to solve the above-mentioned problems. To ensure this, firstly, cantilever grinding method and strip-width-maximization grinding method with barrel-shape grinding wheels are employed to realize high accuracy machining of blisk profile, the machining errors of suction/pressure surface are fluctuant in the range of 15~20μm, and the minimum leading/trailing edge radius is near 28.7μm. Secondly, a geometry-based adaptive machining method is suitable for the make up machining of leading/trailing edge, the residual error between machining area and its adjacent area is less than 10μm. Finally, 3-axis cylindrical CNC grinding method and cylindrical coordinate array grinding method are proposed and verified through simulation, which can shorten blisk (its blade length is less than 60 mm) machining time from hundreds of hours to 3 hours or so.

      Too fast tool wear is a difficult problem in the cutting process of Ni-based superalloy GH4169, so it is of great significance to study the tool wear characteristics. The simulation model of groove characteristic tool is established by DEFORM software. The influence of the wear on the cutting process is revealed. The accuracy of the simulation model is verified by turning experiment, and the influence of different flank wear on cutting force and cutting temperature is obtained. At the same time, the blunt standard of cemented carbide cutting tools is also obtained. The analysis results have good guiding significance for process optimization during finishing process of Nibased superalloy.

      The overall composition and design principles of the fuselage automatic docking platform are expounded, and the mechanical composition of automatic docking platform and electrical control system architecture are analyzed in detail. The positioning accuracy of the automatic docking platform, stress control and automatic docking function are tested by using a laser interferometric device, the front fuselage sample and the rear fuselage section sample. The test results showed that: The NC locator positioning accuracy is 0.015mm, which may meet the requirements of the fuselage docking assembly precision; During the attitude adjustment, the X, Z-axis stress of the front and rear section samples is less, the body is not damaged; The fuselage automatic docking platform can complete the adjusting posture of the front and rear fuselage and the fuselage technical indicators detection after adjusting posture, docking and assembly.

      The instantaneous power consumption of 100kW laser weapon is about 500–700kW. At present, airborne power supply is difficult to meet the demand directly. In order to satisfy the requirement of instantaneous high energy output of airborne laser weapon, high energy storage is required between the airborne generator and the laser weapon input stage. According to the laser weapon with output power of 100 kW, the power supply idea of laser weapon is analyzed. The idea of combining power supply of airborne generator, energy storage device and laser excitation source is put forward by the comparison of power supply mode and energy storage device. The research on the power supply technology of airborne laser weapon is carried out by using the super capacitor group as an energy storage device, and the feasibility of the airborne super capacitor energy storage power supply is verified.

      This paper describes the formulated basis and the implementary requirements for a composite autoclave curing process research plan, emphasis on the selecting of the materials, sampling, critical process parameter and testing items. This paper also specifies the critical control requirements for the cutting, plying, machining and non-destructive testing requirements during the fabrication and analyzes the influence of above factors on the quality of final composite parts, meanwhile introduces the experimental design for the composites autoclave curing process and the establishment  of process specification. Finally, the paper introduces the product quality-keeping method and airworthiness verification method for composite parts fabrication process. For the airworthiness verification of composite process specifications, the stability of the process is the key point, which can be tested by using representative test panel and components.

      Inertial sensors are widely used in the field of national defense. However for a long time, the production mode of inertial sensors based on artificial adjustment has the disadvantages of low efficiency, poor consistency and low qualified rate. Through expatiation on the advantage of robotic technology, the idea of making use of the robotic technology to help inertial sensor precise adjustment is proposed. Three typical application cases of robotic technology in ring laser gyro assembly are proposed and analyzed. The application results show that the assembly efficiency, qualified rate and consistency have been significantly improved. In the end, the application effect of robotic technology in inertial sensor precise adjustment is summarized, and the developing trend of inertial sensor precise adjustment is prospected.