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46 results about "Environmental profile" patented technology

Computing method on overspeed damage reliability and failure rate of supercharger compressor impeller

The invention relates to a computing method on the overspeed damage reliability and failure rate of supercharger compressor impeller. Through calculating the intensity cumulative distribution function and the probability density function of the supercharger compressor impeller, calculating the cumulative distribution function and the probability density function of the equivalent load of the supercharger compressor impeller, calculating the overspeed damage reliability of the supercharger compressor impeller, calculating the overspeed damage failure rate of the supercharger compressor impeller, and calculating the overspeed damage average life of the supercharger compressor impeller, the overspeed damage reliability, failure rate and average life of the supercharger compressor impeller can be obtained according to the number of blade of the impeller and the distribution of density and load, and the failure rate data of the supercharger compressor impeller is not needed in the computing process. The method can show the influence of the uncertainty of the load environmental profile, the dispersibility of intensity index, the blade unit number, the service life index and other parameters on the reliability of the compressor impeller roundly and objectively, and calculate the overspeed damage failure rate and the average life of the compressor impeller.
Owner:CHINA NORTH IND GRP NO 70 RES INST

Long-term fixed point profile measuring method for autonomous underwater vehicle

The invention relates to the field of underwater vehicles, in particular to a long-term fixed point profile measuring method for an autonomous underwater vehicle. The method comprises the following steps: I, walking to an object observing region; II, executing a diving task by the underground vehicle; III, leveling the gesture and opening a detecting load for primary marine environmental profile observation after reaching a set depth; upfloating to the water level, and carrying out secondary marine environmental profile observation by the detecting load; IV, diving to the observation depth andleveling the underwater vehicle precisely; V, closing an automatic driving unit and other equipment except a depthometer and an altimeter, opening a supervising on-duty unit, wherein if a set wakening condition is met, the supervising on-duty unit wakens the automatic driving unit; and VI, wakening the automatic driving unit and judging whether the number of times of observation meets the set value or not after reaching a preset dormant time, and if not, repeating the step III to start a new profile observation period. The marine environmental profile parameters are measured for a long time by means of suspended dormancy and supervision in an energy-saving manner.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Service-based communication network reliability test section construction method

ActiveCN107959598AThe test profile is scientific and reasonableGuaranteed resultsData switching networksService profileEnvironmental profile
The invention relates to a service-based communication network reliability test section construction method. The service-based communication network reliability test section construction method is characterized by comprising the steps of: (1), defining evaluation requirements of a network, and determining the task scenario of a system according to the evaluation requirements; (2), defining a network task, then, decomposing the task to define task stage information, and obtaining an event experienced within the time when the task is completed and the time sequence description of an environmentthrough each piece of task stage information, so that a task profile of the system is obtained; (3), for each task stage, integrating and decomposing the task stage, and extracting a specific communication service, a movement condition and a related environment; (4), determining communication service information in each task stage, and constructing a communication service profile; (5), determiningnode movement information in each task stage, and constructing a movement profile; (6), determining environmental information in each task stage, constructing an environmental profile; and (7), synthesizing the communication service profile, the movement profile and the environmental profile, so that a test profile directly used for a test is obtained.
Owner:BEIHANG UNIV
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