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An Accurate Calculation Method for Dynamic Simulation of Tension Pay-off

A calculation method and dynamic simulation technology, applied in calculation, computer-aided design, design optimization/simulation, etc., can solve problems such as insufficient guiding significance, inaccurate calculation, and large amount of calculation in tension setting-out construction, and achieve convenient guidance on site The effect of construction

Active Publication Date: 2021-06-18
HENAN POWER TRANSMISSION & TRANSFORMATION CONSTR CO LTD +1
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Problems solved by technology

This method has a large amount of calculation, and the calculation is not accurate enough, and the guiding significance for tension setting-out construction is not strong enough

Method used

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Embodiment Construction

[0055] Such as figure 1 with figure 2 As shown, the present invention is an accurate calculation method for tension pay-off dynamic simulation, comprising the following steps:

[0056] A: Establish a traction force calculation model

[0057] Let the self-gravity per unit length of each sub-conductor be w (N / m), and the self-gravity per unit length of the traction steel rope be w 0 (N / m), the resistance coefficient of the wire pulley to the wire is ε, and the resistance coefficient of the wire pulley to the traction steel rope is ε 0 , the axial tension of each sub-conductor at the outlet of the tension machine is T T (N), the axial tension of the traction rope at the entrance of the tractor is T P (N), the total axial tension of the thread on the tension field side of the pay-off block and the traction field side of the i-th base tower pay-off block is respectively:

[0058] T i , T i '(N);

[0059] Let the height difference of the wire suspension point of the No. 1 f...

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Abstract

The invention discloses an accurate calculation method for dynamic simulation of tension pay-off. Firstly, a draw-tension calculation model with the outlet tension of a tension machine as an independent variable is established, and a corresponding pay-off curve is automatically drawn in a cross-sectional view. Through the pay-off curve and The graphics of the cross-sectional diagram are merged, and the starting coordinates of the pay-off section are set to coincide with the corresponding coordinates in the cross-sectional diagram, so that the drawing of the laying-out operation can be drawn; and then using the drawing of the lay-out operation, the position of the pallet is adjusted base by base from the tension field side, Adjust the running plate to the nth base block in turn, and repeat the above process; realize the dynamic simulation of the pulling force and axial tension of the entire pay-off section; The outlet tension of the single sub-conductor of the machine is an independent variable, and the stress matrix table of the wire is made to accurately reflect the stress status of each part, and it is more convenient to guide the on-site construction.

Description

technical field [0001] The invention relates to the technical field of tension stringing construction of power transmission and distribution lines, in particular to a magnetic-drive photoelectric liquid level gauge for boiler water level monitoring. Background technique [0002] In the tension stringing construction of transmission lines, it is necessary to calculate the pay-off control gear and the pay-off tension. The conventional calculation method is to select the control gear (that is, the control point) based on experience, and determine the control gear according to the height and position relationship of the control gear. The horizontal tension of the file. The selection of control points is very important, especially when the control object is the ground and the ground is undulating. Due to the influence of terrain undulations and friction coefficients, multiple control gears are required for comparison. The selection of control points is not accurate enough, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F119/14G06F113/16
CPCG06F30/20G06F2113/16G06F2119/06
Inventor 李君章
Owner HENAN POWER TRANSMISSION & TRANSFORMATION CONSTR CO LTD
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