Anti-seismic characteristic simulation calculation method for improving response spectrum excitation response synthesis
A simulation calculation and response spectrum technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as large computational workload, insufficiency, and high energy consumption
A simulation calculation and response spectrum technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as large computational workload, insufficiency, and high energy consumption
CN112560177AInactive Publication Date: 2021-03-26SHANGHAI MARITIME UNIVERSITY
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[0070] In order to clearly explain the seismic characteristic simulation calculation method provided by the present invention, the present invention is described in detail in combination with specific engineering examples and accompanying drawings. An electric monorail crane for the peripheral electrical workshop of a pressurized water reactor nuclear power unit, such as figure 2 As shown, the relevant parameters are: rated lifting capacity Q=3t; the main beam is 25a I-beam, the size specification is 250mm×116mm×8mm; the lifting height H=3.315m, the distance between the upper limit position of the hook and the bottom of the main beam is 685mm ;Span S=6.2m; The weight of the trolley including the hoist is 72kg; The weight of the whole machine is 312kg; image 3 shown.
[0071] The calculation steps are as follows:
[0072] A. The calculation steps of the response spectrum envelope and interpolation of the corresponding damping coefficient under different ground motion loads ...
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The invention discloses an anti-seismic characteristic simulation calculation method for improving response spectrum excitation response synthesis, and belongs to the technical field of anti-seismic design and safety performance evaluation analysis. The method comprises the following calculation steps: carrying out response spectrum envelope and interpolation calculation on corresponding damping coefficients under different earthquake dynamic loads; establishing a three-dimensional entity geometric model; setting the node group and the contact surface group; providing load combination and working conditions; performing boundary constraint and load application; performing mesh generation and independence inspection; performing simulation calculation and response synthesis; evaluating evaluation criteria and results; performing joint bolt or weld check. According to the invention, simultaneous excitation response synthesis of three spatial orthogonal components is embodied as simultaneous same-position response combination of any position of the model, so that the maximum structural response is more reasonable, the evaluation of the total calculation result is more conservative, thereserve coefficient and the reliability are higher, green calculation is realized, large-batch anti-seismic characteristic calculation can be quickly and effectively completed, and therefore, a manufacturing supplier can take corresponding improvement or preventive measures in time, and the accuracy of anti-seismic safety performance evaluation is improved.
Description
technical field [0001] The invention belongs to the technical field of anti-seismic design and safety performance evaluation and analysis, and in particular relates to an anti-seismic characteristic simulation calculation method for improving response spectrum excitation response synthesis. Background technique [0002] Nuclear power lifting machinery is an important part of nuclear power plant items. It is mainly used for lifting high-risk goods or loads in nuclear power plants, lifting and transporting other equipment, such as nuclear ring cranes in reactor buildings, fuel handling cranes, spent fuel containers or Spent fuel pool cranes, etc., not only have specific installation locations and special functions, but also have corresponding safety classification and seismic requirements. ) Earthquake load to ensure that it maintains extremely high safety and reliability under extreme earthquake action. When nuclear power plants encounter major earthquake events, their overa...
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Patent Timeline
26 Mar 2021
Publication
CN112560177A
- IPC
- G06F30/15; G06F30/23; G06F119/14
- CPC
- G06F30/15; G06F30/23; G06F2119/14
- Inventors
- 王尧; 薛玉坤