Product technology forecasting is an effective method to keep enterprises' competitive advantage for a long term. Technology evolution theory in TRIZ can provide theory guidance for technology forecasting. On the basis of introducing technology evolution mode and route in TRIZ, a method of how to search technology evolution potential of product and constructing radar plot of evolution potentials were proposed. And then product technology evolution potential forecasting technology is systematically summarized. Product technology evolution potential mapping system (EPMS), a special software based on product technology evolution potential forecasting technology was developed. This system can assist enterprises to rapidly, accurately grasp the technical trend of product. As an illustration, the evolution potential of seal technology of butterfly valve is mapped by EPMD.

This paper summarized several function and behavior representation methods for mechatronic products, in which these methods were classified according to both semantic and syntactic representation schemes. It was proposed that “natural language sentences” could be used to represent not only function but also behavior, and the “input\|output flow” could be either “flow of object (i.e. energy, material and signal)” or “flow of action (physical interaction)”. Furthermore, the feasibility of these representation methods for different types of design problems were discussed. Finally, future research prospects were proposed.

By taking the maximum of information about the features of parts and assembly relationship in assembly as objective, the elements in assembly was described with words. The concept of target size and relevant size was presented, the forming process of target size by taking assembly datum as a clue was explored to establish the word expression, assembly dimension formula, of the relationship between target size and relevant size. This is a new way to automatically establish dimension relationship with computer.

null

Due to the reason that the numeric result of magnetic field FEM is a magnetic vector， it should be transformed to engineering physical parameters. To directly observe the distribution situation of magnetic field， it is necessary to qualitatively represent the distribution of magnetic field by distribution diagram. The magnetic vector contour and magnetic flux density cloud contour were implemented using object\|oriented programming method. The smoothness method was proposed in cloud contour. The property of magnetic field， reflected by distribution diagram， accords well with the result of practical experiment. 

null

null

 Actively driving an inner micro-robot by an outer magnetic field for diagnosis is a feasible and crucial driven method. However, How to generate suitable outer magnetic is a complex problem. Comparing with the common methods adopting assembled electromagnetic loops to generate a driving field， an innovative and simple method was presented， by which permanent magnets were assembled to generate a rotational magnetic field. The circumferentially arrayed permanent magnet was adjusted to the corresponding original azimuth， and then synchronization rotation generated rotating magnetic field in the center of the array to work as the driving field of micro-robot. Furthermore， theoretic analysis and numeric calculation of the magnetic induction intensity distribution of the array center was carried out and a test-bed was established. The experimental results indicate that when circumferentially array six cubic magnets with 50 mm×50 mm×18 mm at the diameter of 275 mm， an even magnetic field of 0.012T can be generated in the central space，±50 mm×±50 mm×±20 mm， of the array. This magnetic field rotates with the same velocity as the outer magnet does， but in the reverse direction. The method， with wide application foreground， can be applied to generate a magnetic field to drive a micro robot， for diagnosis and treatment．

Conventional system of measuring thickness adopts industrial control computer or PLC, while its speed to process data is low and has poor human-machine interact capability. Aiming at these drawbacks, research on the application of AT mega 16 single chip on thickness gauge was conducted. Compare of the advantages and disadvantages of conventional electric control system taking industrial control computer as the kernel and system with AT mega 16 single chip as the electric control kernel was carried out. The composition and principle of electric control system of thickness gauge was introduced in details. Meantime, the measured thickness data process method based on Delphi was expounded. Practice indicates that control structure of this system is simple and it has high operating efficiency and reliability.

Optical dynamic target was one of the crucial equipments to test photoelectric theodolite indoor. To test the capability of simulating space-flying objective of a new-type optical dynamic target, its measuring performance was evaluated and its structural advantages were validated. The usual target's traces were simulated by Matlab, and multiple forms of space flying targets were calculated and simulated. The changing curves of the parameters of targets in simulating space target process, including changing curve of angle and error curve of target's angle. Simulating result indicates that velocity and acceleration of targets can match flexibly; the target area that can be simulated is wide; the forms to simulate these targets are multiple and finally this new-type dynamic target is more close to reality. Comparing with conventional targets, it is obviously more innovative and practical. Furthermore, its performance can fulfill the requirements of indoor test on the photoelectric theodolite. By real time compensating error using target's error curve, a theoretic reference is provided to improve the target's accuracy.

Theoretical and experimental research on the existing key problems in wall-follwing strategies using single ultrasonic sensor was carried out. On the basis of geometric analysis, the constraint problem of wall-following navigation using single ultrasonic sensor was proposed and then sloved. Furthermore, a self-adjusting wall-following using single rotary ultrasonic sensor to implement precise wall-following navigation of mobile robot was put forward. Testified by experiments, the proposed method is effective, convenient and highly reliable. And it has general application significance and wide application prospect.

Compact power divider is a crucial part in microwave signal dividing and antenna array feeds. A composite right/left-handed transmission line (CRLH-TL) was applied to design of a small-size series power divider and theoretic analysis of its dispersion characteristics was conducted. A novel CRLH-TL by utilizing chip capacitors and micro-strip inductors was presented. The CRLH-TL at zero-order resonant frequency does not induce phase shift and supports an infinite wavelength, and then based on its vibrating properties, a 4 series microwave power divider working at 2.45 Hz was designed and manufactured. This divider equally divided input power to each output port and the position of output port had no influence on it. The manufactured divider was measured by a vector network analyzer. The magnitude difference between output ports is less than 1 dB from 2.20 GHz to 2.65 GHz,and the phase difference between output ports is less than 15° from 2.22 GHz to 2.56 GHz. The measured results well accord with the simulated results. In addition, this divider is very compact and flexible, and can be extended to an random number of output ports．

Through the investigation on kelp comprehensive process workflow, the drawbacks of in this process was proposed as well as the feasible technical scheme of adding dehydration step and reducing the salt amount putting into kelp to create considerable economic profit and decrease the resource waste. After completely analyzing the dehydration step in kelp comprehensive process, automatic dehydration by adopting centrifugal effect, natural dehydration by prolonging the producing line and dehydration by pressing were proposed. Multiple experiments indicate that the effect of natural dehydration is not satisfactory, and the implementation of centrifugal dehydration is hard and the most feasible design scheme is dehydration by pressing. Finally, a feasible design scheme of pressing dehydration is put forward and the assembly drawings of the whole pressing mechanism are provided. The application in field demonstrates that this dehydration mechanism is reasonable and it has high efficiency in dehydration. Additionally, it is practical and can fulfill the requirements of producing. 

To improve the tire performance of puncture-proof, explosion prevention, safety and bullet-proof, and weight decrease, a kind of airless tire used for military vehicle was put forward. A new type of tire design method was figured out. Through mechanism analysis, tire structure model was established. By utilizing ANSYS, a static nonlinear large deformation contract analysis between the tire and ground was carried out. The relationship between force and deformation and stress distribution of vehicle under static load was obtained, and meantime some crucial design parameters were gained too, through which, designer can reasonably select material, improve the tire structure and finally optimize the design scheme. The tire radial stiffness curve gained from the relationship between deformation and stress provides principal stiffness parameters for further simulation analysis.

According to the technical characteristics of control-staff-type car collision platform car test system, the work principles of control-staff-type mechanism of absorbing collision energy and computation model of control-staff design were analyzed. By adopting object-oriented technology, computation software of car collision simulation control-staff was developed. The absorbing energy mechanism of the control-staff designed with this software can simulate the dynamic process of car collision with high design accuracy.

Advancing the research on rapid prototyping machining tool for ceramic parts has great significance on shortening the manufacture period of ceramic parts and enhancing enterprises'  production efficiency. The developing situation of rapid prototyping machining tool for ceramic parts was introduced briefly. And the basic structure, process workflow and working principle of the paving stock mechanism on a new type of rapid prototyping machining tool for ceramic parts based on laminated coalition and rapid concreting prototyping for ceramic parts was introduced in details. The design of this PLC control system of this paving stock mechanism was presented. After putting into use, this system operates well, can fulfill the requirements of product automatic production and increase the work efficiency. 

The impact of side length value of honeycomb core on compression characteristics of honeycomb paperboard was analyzed. Firstly, the compressing principle of honeycomb paperboard and then the compression process was divided into four stages. Secondly, analysis model of honeycomb paperboard was established. Analytical model of honeycomb paperboard were built by FEA software, MSC. MARC and the compression process was obtained. Meanwhile, this process was validated by experiments. Finally, by comparing the compression situation of honeycomb paperboard with various side lengths, it is demonstrated that side length has a great impact on the compression performance of honeycomb paperboard. 