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Screw-driven clamping fixture, it's external or internal force and deformation may be the direct cause of manufacturing precision, is one of absolutely necessary parts for manufacturing process. An effective way of predicting the movement and force of the screw-driven clamping is proposed in this paper based on mathematical methods and numerical simulation. As an example, a kind of screw-driven fixture...
In the process of the under balanced drilling, the use of DDV can reduce the drilling time and protect the oil layer. Although DDV has been successfully used in domestic and foreign oil fields, the poor reliability of the switch action, the sealing property of the DDV and the central glide spindle to valve board impact seriously influence the DDV's service life. Targeting at these above problems,...
In high-speed/high-precision ball screw transmitting systems, the re-circulating mechanism of ball screws is used for providing the path for steel balls rolling in screw grooves generally. Forces caused by the impact activity between the steel ball and re-circulating mechanism has resulted in a series of troublesome problems, such as violent vibration, strong noise, etc.. In order to investigate the...
Wind power is a promising green energy because of the energy crisis is grown up gradually. The first key factor to wind power is energy transfer efficiency and the reliability of the wind turbine system, if without efficiency, the power output just exhaust the energy, if without reliability, the wind turbine system is not only useless but danger to the surrender. This paper is use stress and dynamic...
Mathematic model of floating bridge elastic base infinite beam is established. The vehicle is simplified as moving mass and moving vibration mass respectively, and dynamic responses of floating bridge under the action of vehicle are studied. The three-dimensional vehicle-floating bridge model is established in the ADAMS/View. By using of its powerful solver, the dynamic responses of continuous hinged...
In this study the working principle and characteristics of electrical discharge machining was introduced and in order to resolve the kinematic and dynamic research problems. The part simulation method was used by means of ADAMS based on the virtual prototype technique. The data has been changed by using Mechpro. The virtual prototype model was set up. The kinetic and dynamic simulation was conducted...
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