A Method for Optimal Arrangement of Large-Scale Vibration Engineering Control Devices

Abstract

The invention discloses a large-scale vibration engineering control device optimization arrangement method. A control device refers to a steel spring vibration isolator. The method includes the steps of (1), determining a steel spring initial arrangement scheme according to the actual engineering; (2), building an integral finite element calculation model of a vibration isolation system; (3), determining a loading condition; (4), calculating actual bearing capacity F of each steel spring by software through finite element calculation; (5), calculating vibration isolation efficiency Etan of each steel spring according to the formula Etan=actual bearing capacity F / ultimate bearing capacity[F]; (6), uniformizing the vibration isolation efficiency and calculating the uniform vibration isolation efficiency[Eta] according to the formula [Eta]=(Eta<1>+Eta<2>+Eta<3>+...+Eta<n>) / n; (7), if the vibration isolation efficiency Etan meets the formula (Eta<n>-[Eta]) / [Eta]< / =10%, then determining the effective scheme; (8), carrying out model calculation and analysis to the whole vibration isolation model; (9), determining the final scheme if requirement for model is met, in other words, the modal calculation fundamental frequency error is lower than 10%; and (10), arranging the steel springs according to the determined final scheme.

Description

technical field [0001] The invention relates to an optimal layout method of a large-scale vibration engineering control device, which belongs to the field of architectural design. Background technique [0002] At present, for the large-scale steel spring arrangement in engineering vibration isolation, the uniform arrangement method is mainly adopted according to the bearing situation. After the plan is formed and put into use, the working behavior of the vibration isolator is fixed and cannot be adjusted, which cannot be applied to changes. The vibration load is input, and the actual working performance of each vibration isolator is quite different. To sum up, the traditional method has the following disadvantages: [0003] 1) Empirically carry out large-scale steel spring layout. Because in traditional engineering vibration isolation design, large-scale steel springs are generally arranged in a uniform way, regardless of the actual vibration load changes, the actual bearin...

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Problems solved by technology

[0010] Another object of the present invention is to provide a method for optimizing the layout of large-scale vibration engineering control devices, which solves technical problems such as high economic cost and unfavorable durability of steel spring vibration isolators.

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