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The conductive and fiction properties of overbased calcium sulfonate complex grease and lithium grease containing carbon black (CB) additive were investigated in detail. The results indicate that CB can dramatically improve the conductivities of the greases. Also the tribol-test results indicate that the CB can dramatically improve the tribological properties of the greases. The lithium greases containing CB, have better tribological properties than overbased calcium sulfonate complex greases. Among the lithium greases, 5% CB contained grease performs the best friction reduction properties, and among the overbased calcium sulfonate complex greases, 6% CB contained grease performs the best friction reduction properties.

Hybrid measurement method is proposed to solve the problem that the partial or whole three-dimensional reconstruction accuracy of aviation engine parts is high. The point clouds of the aviation engine part are captured first using contact and non-contact measuring method. Feature-based parametric modeling strategy is adopted to reconstruct the aviation engine part so that it is easy to be modified in the future. Then, the point cloud data obtained by contact measurement and the reconstructed model are registrated to the same coordinate system to detect the deviation. The point cloud registration method is based upon the feature-based registration method and standard Iterative Closest Point (ICP) algorithm, which help to improve the accuracy of registration. According to the result of deviation, the three-dimensional model can be modified. The accuracy of the modified model is controlled within 0.02mm, satisfying the requirement of aviation engine parts. Three-dimensional reconstruction results have verified the feasibility of the method.

The Super-hydrophobic surface can be obtained easily by pollution accumulation on room temperature vulcanized (RTV) silicone rubber coating surface. The photos taken by digital camera show that the amount of pollution on the RTV coating surface was increased with time, and after one year, the RTV coating surface nearly could hardly be seen. The water state contact angle (CA) measurement, which was investigated by the static contact angle instrument, reveals that the CA value of RTV coating surface is increased with increasing the pollution accumulation, and in suitable amount of pollution accumulation, the super-hydrophobic surface (water contact angle of 152o and roll-off angle smaller than 5 o) was obtained. The scanning electric microscope (SEM) of RTV coating with different pollution accumulation was investigated. It shows that the continuous micro-nanobinary structure can be formed with enough dust particles on the RTV surface. The mechanism of the effect of pollution accumulation on the wetting property was analyzed, the migration of hydrophobic molecular in RTV coating onto the pollution surface and the formation of micro-nanobinary structure on the RTV coating surface have synergistic effect on the super-hydrophobic surface formation caused by the pollution accumulation.

Combined with the advantages of good protection of global robot, self-equilibrium, easy control of wheeled robot and strong obstacle surmounting ability of turbofan robot, a variable structure mobile robot which has three kinds of basic modalities of global, turbofan and three-wheel is designed. The balancing leg is retracted and the two polymorphic wheels of the robot are closed into a sphere while in the global state, and it could be conveniently threw, carried and make all directional movements on the flat grounds. When confronted with the complicated terrain environments of sand, slopes etc., the two polymorphic wheels will be outspread to the turbofan state, and the balancing leg will be opened out as a third supporting wheel so as to strengthen the ability to adapt to the environment. When the two polymorphic wheels are expanded into two wheels, the robot motions are more smoothly and easily to be controlled. A virtual prototype of the robot is designed by three-dimensional technology, as well as the motion simulation. Rationality of the mechanism design scheme of the variable structure mobile robot is verified.

Based on the current driving recorder with satellite positioning function technical standards, a pure electric vehicle driving state data collection terminal is designed in this paper. Through the interface technology, the terminal reads batteries, motor speed, current, power and other information of pure electric vehicles that is different from traditional driving recorder data from traditional power vehicles, and then establish the corresponding monitoring platform. Comparing the content of telematics services with the traditional vehicles and pure electric vehicles, this paper illustrates the basic application and market of pure electric vehicle driving state data collection terminal.

The structure designing and working principle simulating of a multi-locomotion mode spherical robot which has two basic movement patterns-globule mode and three-wheel mode is proposed in this paper. When the two hemispherical shells are closed, the robot is in a globule mode, which is easy to carry, throw and achieve all directional movements on the ground. When faced with sand and slope, it can expand to a three-wheel mode, and enhance the ability to adapt to the environment. Three-dimensional technology is used for building a virtual prototype of the spherical robot, as well as the motion simulation of the spherical robot. Compared with the traditional designing and analyzing methods, the way based on three-dimensional technology is more economical, more convenient and faster.

Based on the technical standards for driving recorder with satellite positioning function, this paper designs a driving status data acquisition terminal for hybrid electric vehicle that could increase the data collection of battery, motor speed, current, power, etc. by the interface technology, and establishes appropriate monitoring platform at the same time. The test results show that, the driving status data acquisition terminal for hybrid electric vehicle meets to the application requirements.

Based on agricultural machinery body posture detection parameters and wheels gesture detection parameters collected by gyro inertial measurement unit, an agricultural machinery operation posture rapid detection method is proposed in this paper. The test results calibrated by RBF neural network show that, the test results of the method are accurate and available, and the method is effective and available for real-time body and wheel status data to further understand the agricultural machinery.

Based on agricultural machinery body posture detection parameters and wheels gesture detection parameters collected by gyro inertial measurement unit, an agricultural machinery operation posture rapid detection method is proposed in this paper. The test results show that, the test results of the method are accurate and available, and the method is effective and available for real-time body and wheel status data to further understand the agricultural machinery.

The effect of UV radiation and surface leakage current on the hydrophobic behavior of the RTV(room temperature vulcanized silicone rubber )silicone rubber was investigated. It's found that the ultraviolet radiation and surface leakage current both could weaken the hydrophobicity of the RTV surface in different degree.

A numerical simulation approach of ventilated cavity considering the compressibility of gases is established in this paper, introducing the gas state equation into the calculation of ventilated supercavitating flow. Based on the comparison of computing results and experimental data, we analyzes the differences between ventilated cavitating flow fields with and without considered the compressibility of gases. The effect of ventilation on the ventilated supercavitating flow field structure is discussed considering the compressibility of gases. The results show that the simulation data of cavity form and resistance, which takes the compressibility of gases into account, accord well with the experimental ones. With the raising of ventilation temperature, the gas fraction in the front cavity and the gas velocity in the cavity increase, and the cavity becomes flat. The resistance becomes lower at high ventilation temperature, but its fluctuation range becomes larger than that at low temperature.