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A method and system for mechanical analysis of ventilation ducts
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A ventilation duct and analysis method technology, which is applied in the fields of chemical industry, nuclear power, and thermal power, can solve problems such as error-prone, low calculation efficiency, and long time consumption, and achieve the effect of reducing human errors, reducing manual operations, and ensuring calculation quality
Active Publication Date: 2020-08-11
中广核工程有限公司 +1
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[0004] However, the above calculation process manually obtains the size of the structural model, manually builds the model, manually combines the loads after each load is loaded, and manually writes the report, resulting in low calculation efficiency, time-consuming, and error-prone
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Embodiment 1
[0059] The embodiment of the present invention provides a mechanical analysis method for ventilation ducts, see figure 1 , the method includes:
[0061] S2. Calling the data information of the pipe parts to establish a finite element model of the ventilation duct;
[0062] S3. Input the required load, determine the required load combination condition, and generate the loading file of the ventilation duct;
[0063] S4. Invoking the finite element model and the loading file to perform calculations to obtain the stress state of the ventilation duct under the combined load conditions.
[0064] It should be noted that after the ventilation duct to be analyzed is determined, the pipe part data information of each pipe part in the ventilation duct is extracted to call the extracted pipe part data information, and the finite element modeling of the ventilation duct is carried out by using Ansys softwa...
Embodiment 2
[0127] An embodiment of the present invention provides a mechanical analysis system for ventilation ducts, which can realize all the processes of the mechanical analysis methods for ventilation ducts in the above-mentioned embodiments, see image 3 ,include:
[0128] The information extraction module 1 is used to extract the pipe part data information of the ventilation duct;
[0129] Model building module 2, used to call the data information of the pipe parts, and establish the finite element model of the ventilation duct;
[0130] Loading file generating module 3, used to input required loads, determine the load combination conditions required for calculation, and generate the loading file of the ventilation duct; and,
[0131] Calculation module 4, configured to invoke the finite element model and the loading file to perform calculations to obtain the stress state of the ventilation duct under the combined load conditions.
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Abstract
The invention discloses a mechanical analysis method for an air duct. The mechanical analysis method comprises the following steps: extracting pipe component data information of the air duct; calling the pipe component data information, and establishing a finite element model of the air duct; inputting a required load, determining a load combined working condition which needs to be calculated, and generating a loading file of the air duct; calling the finite element model and the loading file to carry out calculation, and obtaining the stress state of the air duct in the load combined working condition. The invention also discloses a mechanical analysis system for the air duct. According to the mechanical analysis method and system, mechanical calculation efficiency and accuracy can be improved.
Description
technical field [0001] The invention relates to the technical fields of thermal power, nuclear power and chemical industry, in particular to a mechanical analysis method and system for ventilation ducts. Background technique [0002] At present, ventilation ducts are widely used in construction, thermal power and nuclear power and other fields. Ventilation ducts provide suitable environmental conditions for equipment operation and personnel work, and control and purify gaseous pollutants. The mechanical analysis of the ventilation system is an important part of the layout design of the ventilation system, and it is of great significance to ensure the safety of the ventilation system. [0003] The existing ventilation duct mechanical calculation process includes: the designer manually queries or manually measures the structural model size of the ventilation duct from the PDMS software; manually constructs the structural model and the finite element model; loads each load int...
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