Copper Castings - Electrical Components
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The applied parts are mainly brass contact plate, electrical components, brass valve body, brass valve etc..
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Electrical Components Electrical Components,Sensor Electronic Components,Switch Electrical Component,Original Electrical Components Dandong Hengrui Machinery Co., Ltd. , http://www.hrcastings.com
In the study of a gear pair, the gear meshing stiffness calculated by the formula method is often used, and in the virtual prototyping technology of gear meshing, in the planetary gearbox, the planetary gear meshes with both the sun gear and the planetary gear, and each planetary gear There is also a meshing phase difference between them, and because there are a large number of planetary rows in the planetary gearbox, there are many gear pairs for the planetary gears, the sun gear and the ring gear, and the general method given in multi-body dynamics is fundamental. Unable to calculate, not to mention accuracy.
The nonlinear meshing stiffness of each gear pair in the planetary row is obtained by modeling in the finite element software. The nonlinear meshing stiffness is introduced into the virtual prototype model of the planetary row by the related technology. On the one hand, it simplifies the gear pair. A large number of rigid body contact calculations, and at the same time give the gears of the virtual prototype a relatively reliable nonlinear stiffness value, which provides a reliable technical guarantee and implementation method for studying the vibration and dynamic characteristics of the planetary gearbox and even the entire transmission system. The effects on the dynamic characteristics of the transmission system due to the high speed or the excitation of other systems can be simulated and verified in this complex virtual prototype. First of all, in the virtual prototype research of planetary gearboxes, it is necessary to fully study the prototype model of a single planetary row, how to add nonlinear meshing stiffness to the model of a single planetary row to ensure its fast calculation speed and high precision. It is the key to solving the problem. Once one row is processed, other rows can adopt a similar method. Clearly, the virtual prototype study of a single planetary platoon or a planetary gearbox is the focus of the entire prototype of the integrated transmission system. The second planetary row model of a gear position Figure 5 The third planetary row model of a gear position The virtual prototypes of the above two planetary rows are assembled to form a virtual prototype of a gear position.
The nonlinear planetary row model established by the software integrates the non-linear planetary gear, the sun gear and the planetary gear, and the ring gear meshing stiffness curve is combined with the multi-body dynamics software model to pass the calculated gear meshing condition. The interface is imported into the multi-body dynamic virtual prototype model. This joint simulation model solves the problem of the nonlinear meshing stiffness of the gear in the virtual prototype model, and the calculation speed is fast and the accuracy is high.
