Service life evaluation method for engine mechanical parts
The invention provides a service life evaluation method for evaluating the engine mechanical parts. The method comprises the following steps of: selecting an engine service life analysis part; establishing a system model for the stress field and the temperature field of the selected parts of the eng...
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| Format | Patent |
| Language | Chinese English |
| Published |
29.10.2019
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| Subjects | |
| Online Access | Get full text |
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| Summary: | The invention provides a service life evaluation method for evaluating the engine mechanical parts. The method comprises the following steps of: selecting an engine service life analysis part; establishing a system model for the stress field and the temperature field of the selected parts of the engine; performing finite element analysis on the stress field and the temperature field; performing lifetime analysis, wherein the states of the engine in the step C comprise a static state, a stable operation state, a cold state starting process, a hot state starting process and a stopping process.According to the method, a set of engine part service life evaluation technology can be established in the start-stop stage, the operation stage, the abnormal fault bearing stage, engine temperature stress coupling distribution caused by changes of parameters such as wind, water and electricity, establishment of a calculation model of parts and analysis of the stress state, and then the service life evaluation technology o |
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| Bibliography: | Application Number: CN201810346224 |