The invention discloses a numerical control tool rest reliability cutting test method under simulation work conditions. The numerical control tool rest reliability cutting test method comprises step 1, performing market using research on a target tool reset; step 2, performing equipment installation and test workpiece material preparation; step 3, determining a tool rest cutting load spectrum under test workpieces; step 4, performing a reliability cutting test and performing performance detection on the tool frame to be detected in the process of the cutting test. According to the numerical control tool rest reliability cutting test method under the simulation work conditions, the actual cutting work conditions can be effectively simulated due to the test scheme specific to the reliability of the numerical control tool rest, test signals are accurately collected easily, the test period is short, the cost is low, the defects of the product design and manufacturing can be effectively found out, the manufacturing period of products can be shortened, and meanwhile basic data of the design capability and product reliability can be established to serve as the important basis of research and development in the future.

Numerical control tool rest reliability cutting test method under simulation work conditions

The invention discloses an aircraft arresting hook load spectrum compilation method, belonging to the technical field of aeronautical engineering. The method comprises the following steps of: firstly, actually measuring a plurality of arresting loads of the arresting hook and converting the arresting loads into overload; secondly, drawing a cumulative frequency curve of arresting overload, and performing maximum value correction and smoothing for the curve; finally, performing equivalent damage reducing for the corrected arresting overload distribution to light stage and heavy stage overloads through a Miner linear damage theory, obtaining 90% light arresting overload spectrum and 10% heavy arresting overload, and providing a load curve of one-time arresting. In the method provided by the invention, according to actual service condition and stress characteristic of the arresting hook, an arresting hook load spectrum compilation method is established according to an aircraft strength and stiffness specification on the basis of being according to a small amount of actual measurement data, engineering personnel is helped to perform life analysis and fatigue test verification for the arresting hook, and thus, service life of the arresting hook can be determined.

Aircraft arresting hook load spectrum compilation method

The invention provides a device and method for playing back original communication data. The device includes: an original data reading unit for reading a text file including the original communication data; a database establishment unit for establishing a data base and writing correct data into the database according to data in the text file; and a playing back unit for playing back the data according to the database. The technical scheme of the invention can play back the original communication data, can analyze unit operation data during a period at anytime, and determines the unit operation situation and finds an abnormal operation reason.

Device and method for playing back original communication data

The invention relates to a method for generating an infrared temperature measuring data file, wherein the infrared temperature measuring data file at least includes thermal map data obtained through dot-matrix infrared temperature measuring equipment and infrared picture data The method has the following characteristics: firstly, storing length of the infrared temperature measuring data file; secondly, with respect to the thermal map data, storing the thermal map data, as well as data length of the thermal map data, and the dot matrix width and dot matrix height of the dot-matrix infrared temperature measuring equipment; and thirdly, with respect to the infrared picture data, storing the infrared picture data, as well as the data length of the infrared picture data The infrared temperature measuring data file generated through adopting the method has the characteristic of the capability of storing the infrared temperature measuring data in a unified format or norm, the establishment and popularization of occupation standard can be facilitated, and the follow-up unified storage and management can be facilitated

Method for generating infrared temperature measuring data file

The invention discloses system and method for reading load spectrum actual measuring experimental data. The system comprises a data acquisition device and a computer, wherein the data acquisition device is used for acquiring load spectrum actual measuring data and storing the load spectrum actual measuring data in a data storage card; and the computer is connected with the data acquisition deviceand is used for reading the data from the data storage card according to the storage strategy and storing the read data into a data file with the designated format to be used by the load spectrum actual measuring experimental data processing system. The invention has high actual value for reading the load spectrum actual measuring data in the actual engineering test and achieves the aim and the requirement of improving the data storage efficiency and flexibly reading.

System and method for reading load spectrum actual measuring experimental data

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System and method for reading load spectrum actual measuring experimental data