Applied Mechanics and Materials Vols. 380-384

Abstract: According to the design theory, two section type peanut harvesting characteristics is studied. A suitable northeast harvesting peanut picking machine is developed. It is applied with half feeding form according to the Liaoning advocate. A division 'Tangyou' series peanut harvesting style is applied for the design. The calculation of correlative parameters is made, the organization form defined, and the main structure was analyzed. The results show that the design of machines meets the peanut picking requirements. And in the fruit picking process to achieve the low damage rate, it can completely adapt to the requirements of the rural northeast.

Abstract: Worm is the executive component of the twin-screw oil press, and the design of the worm effect the performance of twin-screw oil press. In this paper the 3-dimensioned geometric model of the worm was established with SolidEdge, the static analysis for the established model was finished and the natural frequency of the worm was analyzed with ANSYS Workbench. Then the first six level natural frequencies and vibration mode were obtained, which provide the basis for dynamic analysis of the worm.

Abstract: Structure finite element analysis software ANSYS is used to establish relatively complete finite element model for automatic side wall formwork trolley, analyze the stability of formwork trolley under light condition and work condition, and give a correct classification on working conditions of formwork trolley. Main factors influencing the stability of formwork trolley are found and improving measures are proposed to provide reference for optimal structure design and standardized design of formwork trolley.

Abstract: The form of principal spindle's dynamic errors is analysed firstly. Scientific test scheme is designed to analyse the influence of rotating speed to rotating errors and decrease temperature rises influence. Principal spindle's radial average errors and asynchronous errors, axial average errors and asynchronous errors, minimum radial separation center of some vertical machine center are all tested with SPN-300 of API. Test method is rise speed-test-stop & cooling-rise speed. Three vertical machine centers are tested and every machine center is tested three times at different rotating speed. The test results and the influences of all errors are analysed at last.

Abstract: Rails is an affordable, fixed, direct the mobile device. Among the many factors that affect performance, the rail surface is a very important factor. This article use test method gets the static stiffness of joint surface and the top five bands of the natural frequency and damping ratio for small linear guides. Test access to the static stiffness will be important in finite element analysis of input parameters. In the course of the study, analysis of dynamic performance of small - scale test guide, Study on Effect of surface characteristics on the structure of the component. By comparing the small guide the results of the analysis and the experimental results to verify the validity and accuracy of the analysis method.

Abstract: This paper establishes internal thermodynamic model, taking the WJ-4FB explosion-proof scraper waste gas treatment tank as the research object. And establish the gas-liquid two-phase flow simplified model based on CFD. Through the numerical simulation of the gas-liquid two-phase flow transient flow pattern, draw two-phase flow figures and gas content distribution curve .Further analysis of the gas-liquid two-phase flow, this paper obtains initial gas velocity, static level, internal mounting member and other influencing factors. It provides a theoretical basis for the design of the waste gas treatment tank.

Abstract: in order to improve the passengers comfort, the human engineering was used in the high-speed train seats analysis. According to the natural physiological shape, the paper was adopted the polynomial regression method in order to obtain a better kinesiology seat back curve equation. The exterior point penalty function method was adopted to optimize the curve equation. The optimized result showed that the ride comfort was enhanced. The paper used two new mathematic method in ergonomic design, and improved the high-speed seat comfort.

Abstract: This paper analyses utilization of regenerative-braking energy in various situations. It is shown that some suggestions for the installation of regenerative braking energy absorption equipment for every working condition. A model based on some high-speed passenger line has been built by the using of MATLAB/SIMLINK software. According to the results analysis of the utilization of regenerative-braking energy has been done. In the end, more reasonable schemes of the installation of regenerative braking energy absorption equipment are proposed.

Abstract: To reduce the time of the operation for fuel tank catapult, a new pneumatic unlock frame based on slider-crank mechanism has been designed, and a virtual prototype has been established by ProE and ADAMS, the process of unlocking and launch was simulated. The result shows that this catapult can be unlocked rapidly. The time of unlocking and launch is shortened more than 10 times by improving the principle of unlocking mechanism. It only takes less than 3s to attain safety.

Abstract: To improve the performance of diamond saw blade sawing, reduce vibration at the time of its work, prevent the blade resonance, the parametric model of diamond saw blade was been established based on the finite element software ANSYS, and the analysis file was been established through the structural reliability analysis module of the finite element analysis software ANSYS. The finite element method combined with the Monte Carlo method can be used to get the sensitivity index which effect the diamond saw blade security and the probability distribution function and the other principal impact factors, and which is theoretical basis for the diamond saw blade optimization and design.