In order to strengthen the application of TRIZ (Tip for innovation problem solving) in biomedical engineering (BME) and promote twoway interaction and development of TRIZ and BME, the application of TRIZ in BME was summarized and a general process of using TRIZ in BME was constructed based on the theoretical basis, application and analysis tools, knowledge database of TRIZ. 〖JP2〗This process was then applied in the design of a respiratory gases sampling and enrichment device and an expected result was obtained.It provides the references for the designers use of TRIZ in the field of BME.

For nonprobabilistic reliability analysis of uncertainty structure with implicit limit state function, a method for nonprobabilistic reliability analysis of uncertainty structure was presented on the basis of support vector regression, and analysis process of the method was given. Taking data samples and optimizing support vector regression parameters, the support vector machine after training was used to replace implicit limit state function. Using interval analysis method of nonprobabilistic set theory and introducing size scale factor, suitable nonprobabilistic reliability index iterative algorithm of uncertainty structure was presented. Finally, a numerical example and an engineering example were used to test the presented method. The numerical example shows that support vector regression model forecast precision is high, and using the model instead of implicit limit state function to analyze nonprobabilistic reliability is feasible. The engineering example shows that the presented method has three virtues of feasibility, correctness and high accuracy. Therefore, the presented method is of good practical engineering value, and it also has a certain useful value for other uncertainty structure nonprobabilistic reliability analysis with implicit limit state function．

The processing quality at the bottom of the bottle directly affects the safe operation for CNG(compressed natural gas) onvehicle bottle. The strength of the bottle was weakened for installation error when the workpiece was machining and the processing principle error caused by the traditional open CNC machine tool feed ways. So the new tool control system of modular machine used imagebased feedback to identify and compensate the tool path error. And a model of imagebased feedback and detailed outline of the digital image technology were constructed. The algorithm and progress of toolpath error identification and compensation when processing the CNG bottle were presented. The results show that imagebased feedback of selfadaptive feed method is a quick and economical error compensation technique, avoiding the expensive hardware and complicated process of NC program in the other way. It can adjust the cutting parameters selfadaptively according to the cylinders contour, ensuring the strength of the CNG cylinder bottle. This method is also suitable for other contours NC processing．

The main function of roll\|over protection is to protect the drivers safety and minimize loss of property caused by the accident, when the construction vehicle rolls over or other accidents occur. The article analyzed the reliability and reliability sensitivity of the two\|column roll\|over protection device. The FEM software was used to estabilish the parametric model and the corresponding design variables. According to the experimental design theory, the relationship between the design variables and the stress were obtained through the random FEM method. In order to get the explicit expression of the performance function, we used the BP(back propagation) neural network to make the nonlinear fitting. According to stress\|strength interference theory, first\|order second\|moment method was employed to compute the reliability. Using matrix differential technology, we analyzed the influence of design variables on the reliability of the structure, and thats the reliability of the sensitivity. The results provide a theoretical basis for the design of roll\|over protection device. To a certain extent, it has significant meaning for engineering．

To solve the difficulity of transforming a topology optimization design proposal of a midbed of vertical computer numerical control gear shaping machine tool to a manufacturable design in engineering, topology optimization model with manufacturing constraints was established. Topology optimization for midbed was conducted on OptiStruct package. Two topology optimization results of volume fraction constraints and volume fraction with manufacturing constraints were obtained. Comparing and analyzing the topology optimization results of two constraints, the optimal design shows that the midbed structure based on topology optimization with manufacturing constraints has a better castibility．

According to the characteristics of Chinese traditional massage and the analysis of kinematics and dynamics characteristics of common massage manipulations: rolling, vibrating, rubbing, pressing and kneading, a design scheme was put forward, in which a kind of practical series mechanical arm with parallel mechanism at the end of the actuator realized the common massage manipulation. Series mechanical provided massage position and posture, and parallel mechanism realized massage manipulations as the massage end actuator. The design combined the advantages of seriesparallel mechanism, guaranteeing mechanism have enough rigidity, precision and working space movements. The kinematics model of the mechanical arm was established, and its kinematics positive solutions and inverse solutions were solved using DH transformation. The threedimensional model of the arm was created by Pro/E and was imported into ADAMS for the kinematics characteristic analysis of its displacement, velocity and acceleration. The simulation results showed that the design of mechanical arm could meet the massage requirements and its correctness was verified. Using the practical series mechanical arm with parallel end actuators could achieve good massage effect. It provides a theoretical basis for the practicability of Chinese massage robot．

This paper studies the running deviation and vibration of EBZ160 diganchor machine in the climbing process and analyzes various factors affect the stability of the whole machine through establishing mechanical climbing model. Applying RecurDyn, the virtual prototype model of the diganchor and the mine excavation roadway pavement model were established. The simulation of the diganchor machine in the climbing process researched on the forces and torque characteristics of the track tension cylinders and the driving wheels then studies the whole machine velocity, acceleration, and the changes of the elevation angle. The results of the simulation indicate that in the climbing process there exists certain impact in the force on the track key parts. When the climbing angle is the extreme value, vibration of the gravity center will become larger, and the phenomena of running deviation will come up. Through the analysis of simulation results, enlarging the tension cylinder pretension and adding the machine weight to reduce the gravity centers migration can decrease the whole machine running deviation and vibration．

In order to establish the virtual prototyping model of a certain FSAE racing car and to assess its handling stability, the model of a certain Formula SAE racing car was established by applying the ADAMS/CAR module of mechanical system simulation software ADAMS. The main points and process of the modeling were introduced. The model of the race track was built and the best path of racing car in the track was obtained by ADAMS/CHASSIS. The extreme driving performance of the racing car in the track was calculated through Smart driver module simulation. By comparison to the actual results of competition, the correctness of the virtual prototyping model is verified, which provides a strong basis for the design and optimization of Formula SAE racing car. Based on the above results, the handling stability test of virtual prototype was performed. 〖JP2〗The research results show that the understeer tendency of the racing car is obvious, which achieves the design goal.

Generally, the head lamp on the automobile has the fixed illumination scope. When the automobile turns at night, it can frequent appear “the blind spot” in the bend, because the lights are unable to adjust the illumination angle. At first, three models, including twofreedom auto model and horizontal adjusting model of the car frontlight axis and stepper motor model for AFS of vehicle running on a crooked road were established. The AFS control algorithm based on onedimension cloud model was put forward. The control system for AFS was established and MATLAB simulation was carried out. The result indicates that the control method,compared with increment PID algorithm,has better adaptability and greater robustness, and it has great significance to improve the night driving safety．

Parallel vibration sieves have good screening effects. They have got wide attention in sieve studying. To implement the optimal control of a parallel vibration sieve, its screening characteristics should be studied in detail. Investigating the structure of a parallel vibration sieve and its work process, its screening characteristics curve was gotten and a screening model based on parametric regression method and leastsquare method was proposed. The theoretical calculation results were compared with the expriment results. And error analysis was performed. The maximum error gotten this way was smaller than 084%, and the average error gotten was smaller than 026%. The screening model has a high precision and is easy to be implemented.

In order to calculate the critical speed of multidiameter agitating shaft with several impellers, a simple and convenient algorithm was proposed based on traditional algorithms. First, multidiameter agitating shaft with impellers was simplified as twodiameter shaft without any impeller. The critical speed value of this part can be calculated by traditional algorithm. Then, recover the agitating shaft, critical speed value of the added components was calculated by Dunkerley formula and integral method. Eventually, the critical speed algorithm of multidiameter agitating shaft with several impellers was obtained. The algorithm is verified correct by ANSYS software and has been used in engineering design．

The relationship between system frequency response functions and model parameters which defines system nonlinearities has been studied based on output frequency response functions(OFRF). A new method which could be used to study nonlinear system was proposed. This method clearly expressed the relationship between system frequency response functions and model parameters by a polynomial. This method would be the basis of nonlinear system studying and fault diagnosis. The mathematical model of automotive shock absorbers was provided. OFRF were determined by system simulation and experimental data, and then the system output was estimated by OFRF. Simulation results prove that OFRF method is an effective way to study nonlinear system and of great practical value．

Perforation pressure between gun and casing could not directly reflect the perforation process,in order to better assess the perforation gun,the test system which could immediately test pressure in perforation gun was designed. The system overall design scheme and technology target of the test system were introduced,focusing on the realization of frequency sampling theory. All of these were based on practical applications. After several simulations, such as oil simulation and chamber pressure simulation, the results show that this storage test system can record the pressure data of the perforation process include perforating and fracturing recovery accurately. So it can provide theoretical basis for further studying the mechanism perforation．

There were problems of the serious electromagnetic interference and the voltage fluctuation when the ElectroThermal Chemical Gun (ETCG) launched, which seriously affected the accurateness of data and the security of apparatus. Adopting the multilayer shield technology based on different materials effectively realized electromagnetic shield in the strong electromagnetic environment and ensured the security, reliability and accuracy of the measurement system. Using the storage measurement technology and optical fiber communication, the storage measurement and the realtime transmission of the chamber pressure were realized at the same time, which ensured the reliability of the ETCG chamber pressure. And the implements of duplex communication facilitated the test of the ETCG．

For the problem that ordinary MR damper requires extra field coil and has dependence on energy with large volume and complex structure, a magnetic field structure of passive adaptive MR damper was designed. The magnetic circuit provided magnetic field by permanent magnet and transformed the variation of load force on MR damper into the variation of relative permeability of giant magnetostrictive material based on giant magnetostrictive inverse effect, and thus made magnetic field through the magnetorheological fluid changed. Finite element method was used to verify the correctness of the magnetic circuit. Apply the magnetic structure in passive adaptive MR damper and experiment was done. The result shows that the designed magnetic field structure can change the variation of external force into the variation of magnetic flux density and then change into the variation of damping force. The design of magnetic field meets the requirements of passive adaptive MR damper．

Considering efficiency improvement of digital power amplifier in the current 3G base stations, the application of CFR algorithm module was proposed. The effect of the application of CFR algorithm module on performance of digital power amplifier was analyzed, and block diagram of system was showed. The whole process of improving efficiency of power amplifier by filtering error signal after clipped, and getting clipped signal by subtracting error signal from original signal was described in detail. Finally, the comparison between performance parameters of MATLAB simulation results before and after CFR algorithm application are given, which indicates PAR and CCDF decrease after CFR is applied, and the method is practically validated．