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This paper studies the characteristics of white powder generation on the buffer layer of cables under the influence of humidity and pressure. After testing, the presence of white powder in the buffer layer leads to an increase in the volume resistivity (higher than the area without white powder). The denser the white powder, the more the volume resistivity rises. The current density and surface temperature is simulated in COMSOL and observed the process of white powder generation. The volume resistivity is also measured using an electrochemical impedance spectrometer with different contents of white powder in buffer layer. The test results show that the electrochemical corrosion increase on buffer layer under high water contents in the presence of large current density. The experimental results show that when the water content of the buffer layer is 2 mL, the formation rate of white powder is the fastest; when the pressure of the buffer layer in the range of 998.2 N/m2~9982 N/m2, the formation rate of white powder increases first, then decreases, and finally tends to be saturated; The main component of white powder is aluminum oxide, which is formed by chemical corrosion and electrochemical corrosion of aluminum, carbon black, sodium polyacrylate, water and etc.

Energy-consumption during a produce, especially an energy-used product, performances its function in its using phrase, can arise sets of environmental problem [1], which is the key problem faced by an energy-used product design engineer during a sustainable design process. This paper proposes an essential energy flow analysis methodology. Based on the product components structures units, this methodology built up the relationships between the component energy properties and its functional properties, in order to identify and describe the main energy-related parameter as well as a functional design process. A case of juicer design process illustrates that energy footprint mapping analysis methodology is of great energy-saving efficient during the early phrases of a product design process.

Conventional mechanical vibration platform vibrates not only in the direction of back and forth but also in the direction of up and down. Vibrations in both directions are achieved by two mechanisms, respectively. Three-dimensional vibration cannot be realized. In this paper, the servo motor, the gear drive mechanism, and the parallel four-bar linkage mechanism are combined with the NC system. And a type of program-controlled three-dimensional vibration platform is designed. The platform can vibrate in three directions, such as the directions of up and down, left and right, back and forth. The parametric adjustment of amplitude and frequency in three directions can be realized. The vibration platform is suitable for high-speed and light-load three-dimensional vibration. Compared with the existing mechanical vibration platform, the designed vibration platform overcomes some deficiencies to realize three-dimensional vibration with variable frequency and amplitude.

Product’s performance should be sustainable the environment, which is accepted and be accomplished by more and more companies and people. While some of these methods used well in some special fields may damage the environment in the other period of product related lifecycle phrase. This paper propose an integrated solving environmental analysis methodology based on the unified energy footprint graphic model, which can systematic describe all the produce activities impacted with the external environment by tracing the energy footprint in the uniformed energy flow maps. This frame system can also be divided into three ranks, which can be used clearly to deal with the energy-related environmental problem from the product component structure design to the manufactory processes optimization even to the product families’ research and industrial distribution as a whole.

It is an difficult step using technological contradictions definition of Theory of Inventive Problem Resolving (TRIZ). A method for defining technological conflict based on analyzing of conflict relations in Theory of Petri Net was put forward. The technological conflicts were defined by constructing and analyzing Petri Net model of product. It is a technological support to resolve conflict using TRIZ. Such a series of methods and procedures had been used in the Technical-Conflict determination and solution of Ultraviolet Cooking Oil Smoke Purifier, with a better result obtained. It is proved the validity of Theory of Petri Net for product innovation design.

We present a multi-channel PCs polarization filter, which overcomes the disadvantage of the low channel numbers in the existing filters. The multi-channel PCs polarization filter is based on one dimensional photonic crystal with a defect layer. The simulation results by transfer matrix method show that the filter can realize more than four filtering channels with the separation degree better than 0.95 and the transmission rate more than 50%, and the channels are almost distributed evenly. We also analyze the influence factors of filter performance. The results show that defect layer thickness of photonic crystal determines the number of filter channels. The thickness and number of unit layers of photonic crystals does not affect the number of filter channels, however it can adjust the location of central wavelength for each filter channel.

With the change of the relation between the Bond numbers and 1/3, the different control equations with different dispersion item for the surface wave was obtained. The equation under tension and bottom was reduced from the potential flow theory with the little parameter perturbation technique, and then was solved by using the pseudo-spectral method. The waterfall of the surface wave was simulated with software. The results show, that different surface tension has significant effect on the film surface and there are some solitary-like wave.

The reflective photoelastic experimental hybrid method for the fracture mechanics of orthotropic material was developed in this research. it was verified that the reflective photoelastic experimental hybrid method was more useful for the static plane problems of fracture mechanics, for the determination of stress intensity factors and for the separation of stress components at the vicinity of the crack-tip than the transparent photoelastic experimental hybrid method in orthotropic materials.