The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Design calculation of gearbox torque will improve a pumping unit's efficiency. The kinematic relation and total loads of polished rod were developed based on the kinematic and dynamic analysis of the pumping system. The method combined the counterbalance effect with the calculated dynamometer cards and torque factors to compute the net gearbox torque. The results show that the dynamic load is relatively...
Aimed at structure retrofit of sprocket shaft, combining with the practical working conditions, theoretical calculation, finite element method (FEM) Analysis and model test are applied in research. The results show, numerical value of traditional mechanical algorithm is relative small, FEM can express the influence of actual structure, and results are more reliable. FEM Analysis represents stress...
Based on structure first approach, proposed the constraint expressions of blade which have fine structure. On this basis, established a mathematical model for blade geometry based on Structure first approach. As the objective function is non-linear expressions, based on nonlinear programming method, by using fmincon of MATLAB software, solved the objective function and got optimized airfoil blade...
Automotive steering mechanism is designed applying a theoretical method of robust optimization. A math modal on steering mechanism with clearances based on robust optimization is established. The movement precision in fourteen positions of steering mechanism during steering course is chosen as objective function. Distance between kingpins, axle-base, the bottom angle of trapezoid mechanism and the...
A math model on planetary gear is built based on deterministic optimization method. The minimum volume of planetary gear is chosen as optimization objective. Teeth number of sun gear, face width, module and gear number are chosen as design variable. Applying Monte Carlo method robustness on the planetary gear is analyzed. Robustness analysis is included in probability distribution of objective and...
In order to ease the contradiction between steel slag transportation and the development of steel mills equipment technology of domestic, the SPC90 slag pot carrier has been designed and developed. The maximum rated load of SPC90 Slag pot Carrier is 90 ton, which can cooperate with many kinds of bridge machine for the railway passenger transport special line to complete the corresponding works, and...
The optimization design for a wheel was implemented in this paper. The rim stiffness finite element model, 13-degree impact strength finite element model and bending analysis finite element model of the wheel were established firstly. The influence of the rim stiffness, wheel impact strength and bending fatigue strength of the wheel were synthetically considered. The constrained variable metric method...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.