For BQ41 jacketed stainless steel ball Industrial Valves on the stress distribution uniformity of the numerical simulation study is looking forward to progress within the scope of the condition of contentment sealing seal surface uniformity of stress distribution, stainless steel ball valve theoretical basis is provided for further optimization design. The cover can be regarded as a 'center support structure'. Pipeline system of earthquake activity must pass a bonnet to drive assembly. The dynamics of cover must be able to withstand the drive assembly. Baidu search rankings for itself, the cover is a part of the Industrial Valves to a special is very strong, but due to its basic structure, it is difficult to correctly analyze. Most of the control valve bonnet with asme iii in the appendix x1 analysis, although this appendix is usually prepare for the analysis of the pipeline flange, but is recognized as can do the analysis of the bonnet flange. An increase of the design pressure of the Industrial Valves, thus the cover and body cover bolts must be able to withstand this growth of flange structure stress, PFD = pd + peq. ) Sealing process, the butterfly plate and valve seat conical seal of the contact interface between the size of the region and each location and the contact condition are unknown in advance. Presents the characteristics of complex nonlinear contact. For BQ41 jacketed stainless steel ball valve sealing process numerical simulation, using the physical model of contact, the two contact surfaces are divided into passive (a. 目标的身体) And the automatic body b ( 身体接触) 。 On behalf of a passive body seat seal parts, automatic body part b for the butterfly plate seal. Nodes can be automatically on a contact and passive body at any point ( Not sure is the grid node) Contact, as shown in figure 2. Automatic analysis research on nodes and the degrees of freedom for the passive body contact and deformation of the same sex [ 3] Rankings, contact boundary conditions were determined, and then based on the boundary variational principle of deformation harmony, combined with the coulomb friction law, establish control equations of the contact system, the nonlinear incremental equations need to be solved. Program using updated Lagrangian formulations
cast iron gate valve double flanged gate valve is generally used to os & y valve fire protection.
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