As the most important working area of gear, teeth play the role of transmitting load and power. Tooth line and tooth profile are the two main characteristics of the tooth surface, which affect the shape of the tooth surface, tooth meshing characteristics and contact characteristics. Taking the elliptical cylinder gear pair in the reversing device of a new type of drum pumping unit as the resear...

In order to study the dynamic meshing characteristics of the elliptic cylinder gear and obtain the meshing error of the gear transmission system, the two-dimensional static contact analysis of the gear tooth surface is carried out by using ANSYS software, and the key parts of the contact area of the tooth surface are determined. Then, the dynamic meshing model of the elliptic cylinder gear is e...

The transmission in automobiles is the core component to ensure operational stability. Heat accumulation meshing process will reduce efficiency and affect service life. Here, essential physical improve heat dissipation dynamic evolution thermal transfer characteristics of lubricating oil fields during gear meshing. This paper presents a modeling solving method for lubrication features based on ...

Shadows are of great importance to computer graphics, especially for interactive animation, due to the visual cues which they provide. Most research in the field of dynamic shadowing has focussed on shadows from point light sources, since they are much easier to compute than those from area lights. This means that such shadows have sharp boundaries, and so resultant visualisations often appear ...

Tooth surface wear causes variation in meshing stiffness and transmission error of the gear system further fluctuation dynamic characteristics. In this study, a behavior prediction model was established, which considered machined tooth based on mixed lubrication sliding tribology-dynamic model. The pair characteristics along line were analyzed through simulations, impacts conditions, operating ...

Discontinuity meshing has greatly enhanced the visual and numerical accuracy of radiosity solutions. However, its computational expense means that it cannot be used in dynamic interactive environments with current hardware. Techniques are proposed which allow the discontinuity information to be reused as the environment changes. These techniques complement existing dynamic radiosity methods whi...

Gear wear is unavoidable and results in vibrations decreased performance a planetary gear system. In this work, the phenomenon of teeth surface dynamic responses mechanism are investigated through computational methodology. Dynamic presented by considering effects. First, model dynamics established nonlinear stiffness friction surfaces. The then based on Archard’s model. Further, coupling betwe...

The paper primarily employs the 3D calculation method of helical gear-meshing line and meshing position, in addition to traditional stiffness calculation. This analysis correction load-sharing are beneficial for improving assembly process high-powered critical equipment. dynamic models rigid–flexible coupling, velocity–torque, force planetary gear trains nuclear power plants established based o...