31results about How to "Analog flexible" patented technology

The invention discloses a heterogeneous multi-layer core holding unit. A rubber barrel is arranged in a shell; a multi-layer core model is positioned in the inner cavity of the rubber barrel; a left core piercing head and a right core piercing head are pressed against the two ends of the multi-layer core model; a core chamber for accommodating the multi-layer core model is formed among the inner wall of the rubber barrel, the left core piercing head and the right core piercing head; a left fixing sleeve and a right fixing sleeve are sleeved on the left core piercing head and the right core piercing head respectively; the peripheries of the left fixing sleeve and the right fixing sleeve are connected with the two ends of the shell through an axial confining pressure sealing ring; an enclosed annular confining pressure space is formed among the outer wall of the rubber barrel, the left fixing sleeve, the right fixing sleeve and the inner wall of the shell; a liquid inlet is formed in the left core piercing head and is communicated with the core chamber; and a liquid outlet is formed in the right core piercing head and is communicated with the core chamber. By adopting the holding unit, laminational measurement of intraformational heterogeneous oil deposit is realized, and the change rule and intraformational channeling phenomenon of intraformational heterogeneous water displacing oil during mixed water injection delamination can be accurately simulated and tested.

The invention relates to the field of navigation management, in particular to a method for simulating aircraft flight tracks. Aiming at the problems existing in the prior art, the method for simulating the aircraft flight tracks enables the accurate aircraft flight tracks to be simulated flexibly according to the information such as the current location of an aircraft and the speed of the aircraft. According to the method for simulating the aircraft flight tracks, the longitude L2 and the latitude B2 of the position where the aircraft located after unit time t is obtained according to the longitude L and the latitude B of a projection point K of the aircraft on a spheroid and the component velocity VL on the circle of longitude and the component velocity VB on the circle of latitude of the aircraft, and then a series of the flight tracks of the aircraft are obtained.

The present invention is a flow chamber for simulating the flow environment behind a support, which is characterized in that it includes an external screw rod, a sliding chamber is provided in the middle of the external screw rod, and a sliding rod is provided for rotation in the sliding chamber, and one end of the sliding rod There is a bracket protrusion, and the end of the outer screw rod close to the bracket protrusion is provided with a flow chamber, a groove is arranged in the middle of the flow chamber, a glass slide is arranged in the groove, and the slide bar passes through the A slide chamber is located within the flow chamber. The invention realizes the in vitro simulation of the blood flow environment after the stent is implanted in the blood vessel of the host, and provides the mechanical stimulation of the blood flow disturbance for the cultured cells at the bottom of the flow chamber. In this invention, the adjustable height of the lumen and the adjustable height of the stent wire protrusion make the flow chamber more flexible to simulate various mechanical environments after the stent is inserted into the host blood vessel; through the quantitative observation at the bottom of the flow chamber, it is relatively easy to culture cells in this mechanical environment. Real biological response, thus providing a new tool for studying adverse phenomena such as restenosis and thrombosis after stenting.

Geomechanical model test technology is an important means to study large-scale and complex geotechnical engineering problems. Model test technology can truly reproduce the actual engineering situation. However, the current geomechanical model test technology has a long test cycle, and it must be done again every time a parameter is changed. Model test, the model cannot be reused, the cost is high, the test technology is complicated, and the cost of research is large. However, the present invention proposes the concept of physical finite element plate material and adopts the method of continuous or discontinuous symmetrical load. According to the complex geological conditions on site, The combination of unit plates with different strengths is used to simulate the occurrence. After the destructive test is completed, the undamaged unit materials are collected and can be reused for the next test. At the same time, due to the small size of the unit plate material, various rock masses can be flexibly simulated. This also overcomes the shortcomings of long model test period and high cost.

The invention relates to a method for dynamically simulating the industrial pipeline control relationship, comprising the following steps: S1, modeling industrial pipelines; S2, numbering vertices in S1, inputting the three-dimensional coordinates and types of the vertices and the initial state of a logic control point into a database, and recording the number of the father node of each vertex; S3, in a first time period, drawing a line segment of which the step length is P along each child node direction of a starting point of pipelines by starting from the starting point, judging the type and state of each child node of the starting point, ending drawing in the direction if the child node in the direction is a valve control node and is closed, or, executing next step; and S4, circulating the steps until drawing in all the directions is ended. The method has the advantages of visual display, data reusability and settable relationship and state.

The invention provides an excavation device for multi-angle tunnel excavation in a two-dimensional similarity simulation test, and belongs to the technical field of excavation devices for similarity simulation tests. The excavation device comprises an adjustable fixed frame, a rotary mechanism, a left-right sliding frame, a front-back sliding frame, a motor, a spiral drill bit and a drive assembly, wherein the adjustable fixed frame is parallel to a to-be-excavated surface, and comprises a transverse beam, a fixed vertical beam, an adjustable vertical beam and a tightening screw; the rotary mechanism comprises a rotary platform, a vertical rotary connecting block and a horizontal rotary member which is used for driving the rotary platform to rotate on a horizontal plane; the horizontal rotary member comprises a frame body, a rotary shaft and a slide table, the rotary shaft is rotationally arranged on the frame body and is provided with threads, and the slide table sleeves the rotary shaft; the left-right sliding frame is glidingly arranged on the rotary platform; the front-back sliding frame is glidingly arranged on the left-right sliding frame, and is vertical to the left-right sliding frame; the motor, the spiral drill bit and the drive assembly are arranged on the front-back sliding frame. The excavation device has the advantages that the artificial excavation can be replaced, and various defects in artificial excavation can be relieved.