185results about How to "Comprehensive test data" patented technology

The invention provides a reconfigurable lead screw pair and guide rail pair accelerated life electro-hydraulic servo test bench which is characterized in that two lead screw bearing seats of a T-shaped table between two guide rail mounting tables on a base are provided with lead screws connected with a motor; guide rails on the guide rail mounting tables are matched with guide rail sliding blocks; guide rail sliding block backing plates on the guide rails, a grating bar reading head on one guide rail mounting table and nut bases on the nuts of the lead screws are connected with the bottom of a stressed sliding table; one side of the stressed sliding table is meshed with a gear at the end part of the output shaft of a magnetic powder brake through a gear rack; the other side face of the stressed sliding table is opposite to a force application wheel of a transverse loading mechanism; and the upper part of the stressed sliding table is opposite to a force application wheel of a vertical loading mechanism. The test bench provided by the invention can be used for realizing the accelerated life test of three-way dynamic loading of multiple types of lead screw pairs and guide rail pairs, collecting test data required for evaluating the residual lives and degradation mechanisms of the lead screw pairs and the guide rail pairs in real time, and providing more reliable test basis for the design and maintenance of the lead screw pairs and the guide rail pairs.

The invention provides a sealing wear-ring dynamic / static state exciting force effect characteristic parameter testing device and method; the testing device comprises an experiment table body device, a wear-ring loading and measuring device, and a circulation pipeline system; the wear-ring loading and measuring device comprises a dynamic loading measuring device and a static state loading measuring device; the dynamic loading measuring device comprises an exciter assembly, a force transducer assembly and an exciter probe assembly connected in sequence, and an accelerometer assembly arranged on a wear-ring stator and a displacement sensor assembly arranged right opposite to a wear-ring rotor, wherein the exciter probe assembly makes contacts with the wear-ring stator; the static state loading measuring device comprises a loading connecting rod, a spring cover, a force transducer III, a pulley and a pneumatic loading device, wherein the loading connecting rod is connected with the wear-ring stator. The testing device and method can load dynamic / static exciting force for to-be-measured wear-ring sealing, thus making up parameters tested by the static loading measuring device, and providing more comprehensive test parameters.

The invention provides a method for testing automotive transmission system resistance distribution. In the testing method, multiple vehicle states are subjected to a single variable control test performed based on a rotary drum test stand, the automotive transmission system resistance is tested by adopting a single-point speed steady state testing method and a sliding testing method based on a rotary drum reverse-dragging method, the testing is performed in modes of a new vehicle, running-in mileage 300km, running-in mileage 1000km and running-in mileage 2000km respectively by considering the influence of different automotive running-in mileages to the transmission system performance, a cold state and a hot state are respectively tested according to the starting work condition and normal running work condition in the actual automotive running process, and finished automobile testing, brake-dismounted brake shoe testing, disconnected transmission shaft testing and testing of a driving gear with no main speed reducer are respectively performed by adopting a step-by-step dismounting method. The testing method is safe, controllable and high in repeatability, the influence of uncertain factors is small, and detected test data are accurate and comprehensive.

The invention discloses a multimedium permeability experimental device, which comprises a specimen tube, a gravel sample layer, a concrete sample layer with fractures, and a broken stone sample layer, wherein the gravel sample layer, the concrete sample layer and the broken stone sample layer are arranged in the specimen tube from top to bottom in sequence; the bottom of the broken stone sample layer is provided with a filter plate; a sand water containing plastic bucket is arranged below the filter plate; the top of the gravel sample layer is provided with a sealing element; the bottom, the middle part and the top of the gravel sample layer are respectively connected with a N0.1 piezometer tube, a No.2 piezometer tube and a No.3 piezometer tube; the other ends of the N0.1 piezometer tube, the No.2 piezometer tube and the No.3 piezometer tube are all clung and connected with coordinate paper; the top of the gravel sample layer is connected with a water tank through a conduit; a thin iron wire penetrates through the fracture area of the concreate sample layer with the fractures; the bottom end surface and the top end surface of the fracture area are provided with thin plastic skins; the top end of the thin iron wire is connected with the bottom end of the thin plastic skin to penetrate through the center of the filter plate to be twisted into one strand of iron wire.

The invention discloses a device for studying the shock initiation performance of an explosive and an experiment method of the device. The device and the experiment method aim at solving the problems that in an explosive shock initiation experiment, both the thickness and the installation gap of a manganin gauge and an electromagnetic particle velocity gauge affect test precision, the test precision of the manganin gauge is seriously affected by the environment temperature, the application cost of the electromagnetic particle velocity gauge is high, and a small amount of data information is obtained by a high-speed scanning camera and can not reflect the state of a post-wave flow field. The device comprises a supporting frame, a transparent measurement window, an optical fiber probe frame and optical fiber probes. The supporting frame comprises a wedge-shaped explosive fixing frame and a fixing device. The wedge-shaped explosive fixing frame comprises a vertical connecting plate and an inclined connecting plate, the included angle between the inclined connecting plate and the horizontal plane is 15-30 degrees, and the inclined connecting plate is provided with a first window. According to the device and the experiment method, high-density and multi-point post-wave particle velocity profiles can be obtained in one experiment, and thus data support is provided for studying the shock initiation performance and detonation performance of the explosive.

The invention discloses a tunnel boring machine two-dimensional loading analog test device. A spherical pad used by the device is connected with a common cross beam of a pressure machine through bolts, two ends of the vertical loading tension transfer column of an installment axis type loading sensor are separately provided with the spherical pad and a cutter holder, cutters are fixed on the cutter holder though bolts, two left and right ends of a loading holder are separately provided with displacement sensors, the displacement sensors and axis type loading sensor are connected with a computer through a data sampling apparatus; a horizontal lifting jack is fixed with a left lateral plate through bolts, a horizontal loading tension transfer column is fixed on the left side of a right lateral plate, four draw bars are used to connect the right lateral plate and the left lateral plate, the piston ends of the horizontal loading tension transfer column and the horizontal lifting jack are separately provided with a test piece right bearing plate and a test piece left bearing plate; and a high speed CCD camera is mounted at the front of a test piece and is connected with a computer through a data line. The device has simple structure, convenient operation, low cost, rich test data, complete test result and high reliability and is easy to process.