31results about How to "Analog flexible" patented technology

The test technique of the geomechanics model the important way to research large-scale and complex rock-soil project and model testing technique can realize the real project situation. But at present, the testing periodic of the test technique of the geomechanics model is long, and when changing a kind of parameter each time, we must remake a model test. The model can not be reused, the fee is high, the testing technique is complex, and the research cost is large. This invention raises the conception of physical finite element board material, by the continuous or discontinuous symmetric load mean, according to the field complex geological conditions, adopting different finite element board combination to simulate the condition. After the damaging test, collecting the undamaged definite element material for the next reuse, at the same time, because the size of the element material is too small, it can simulate all kinds of different rock mass. This overcomes the defects of the long testing period and high cost.

The invention relates to an aviation test device, and particularly relates to a pneumatic model tester for an aircraft engine. An inner culvert shell (4) is arranged inside an outer culvert shell (2), the inner culvert shell (4) and the outer culvert shell (2) are respectively communicated with an air inlet device, the air inlet device is a pipeline with a U-shaped section, and an expansion joint is respectively arranged on the pipeline communicated with two ends of the U-shaped section and the linear section of the U-shaped section pipeline. The tester is compact in structure size, can quickly realize studies of engine exhaust parameters and characteristics thereof in a test cabin, can simulate the test condition in the test cabin under the real test condition, can directly acquire high-precision thrust measurement influencing data in the test cabin, and provides test correction and technical support for real engine test. Flowing of inner and outer culverts is separately simulated, so that main engines such as turbojet engines, inner and outer culvert separated exhausting turbofan engines, inner and outer culvert hybrid exhausting turbofan engines and the like can be flexibly simulated.

A simulation device for dual-camera dynamic rotary scanning stereoimaging belongs to the technical field of space optical remote sensing, and is used for analyzing ground simulation stereoimaging. Thesimulation device comprises a simulation ground unit which simulates the surface of earth rotation in the actual imaging process and a simulation imaging unit which simulates a remote sensing satellite in the actual imaging process, wherein the simulation imaging unit rotationally scans the simulation ground unit, and a stereo image is obtained by analyzing the two scanned images. Imaging simulation is more flexible, the device can be fixedly installed according to simulation conditions, and the degree of freedom of installation and adjustment is large; a three-dimensional physical model is used as an imaging target, so that multi-element imaging simulation of various complex terrains can be realized, and the imaging simulation is closer to the real situation; the three-dimensional physical model driven by a driving wheel and a roller lead screw nut driven by a driving motor realize simulation of earth rotation and satellite motion attitudes respectively, so that imaging simulation ismore real, and the accuracy of a simulation result is greatly improved.

The invention relates to an indoor model testing device and method for influences of ground loading on an existing subway tunnel. The device comprises a loading device, a main body framework structure, a drawer type tank box structure and a tunnel model, wherein the main body framework structure comprises steel boards, rectangular connecting steel tubes and horizontal slide ways, the side surfaceand bottom of the main body framework are formed by the steel boards through surrounding, the rectangular connecting steel tubes are bridged on the front and rear surfaces of the steel boards on the left and right sides, a hollow compartment is formed between the upper and lower rectangular connecting steel tubes, and the horizontal slide ways are arranged on the bottom sides of two sides of the hollow compartment; and the loading device comprises a movable counter-force beam, a movable jack and a jacking force frame, the movable counter-force beam is arranged at the top of the steel boards inparallel, and the movable jack is arranged at the bottom of the movable counter-force beam; and the jacking force frame is mounted on the surface of a soil body. The indoor model testing device has the beneficial effects that the loading device is simple in structure and convenient to operate; by utilizing a drawer type design structure, the tunnel model can be rapidly replaced; multiple workingconditions can be simulated by virtue of one model tank; and the testing operation is rapid, and the testing schedule is accelerated.

The invention discloses a distribution transformer for simulating a short circuit state of a winding. The distribution transformer comprises an iron core, a low-voltage winding and a high-voltage winding, wherein the low-voltage winding and the high-voltage winding are sequentially arranged on the iron core from inside to outside; a plurality of winding interlayer taps are arranged on different wire layers of the high-voltage winding; a plurality of winding inter-turn taps are arranged on different winding turns of a same wire layer; a shell is arranged outside the iron core, the low-voltage winding and the high-voltage winding; four lead casings are fixedly arranged on the shell; leads of the low-voltage winding and the high-voltage winding are led out of the shell via corresponding lead bushings respectively; a first spiral ranging conductive rod and a second spiral ranging conductive rod corresponding to the winding interlayer taps and the winding inter-turn taps respectively are fixedly arranged on the shell. By adopting the distribution transformer, short connection parts of the winding interlayer taps and the winding inter-turn taps can be precisely controlled, and in addition, the lengths of the conductive rods can be changed; the distribution transformer is simple in structure, flexible to operate, high in accuracy of simulation experiment results, and applicable to popularization and application.

The invention provides a vascular interventional operation simulator which is used for simulating an operation object of a medical vascular interventional operation. The whole equipment is composed ofa blood circulation simulation system, a basic blood vessel and a focus blood vessel. The blood vessel circulation simulation system is composed of a water pump, a simulation liquid, a return pipe and a pressure and flow velocity sensor and simulates human blood flow conditions. A basic blood vessel is composed of a heart, a peripheral blood vessel and a local limb section which are made of transparent materials and used for simulating a blood vessel passage of an interventional operation, focus blood vessels comprise a coronary artery blood vessel and a common branch blood vessel, are used for simulating diseased blood vessel parts of a human body and can be connected to the basic blood vessel in a replaceable mode. The device can truly simulate the distribution conditions of blood vessels, blood flow and focuses of a human body, can be used for medical personnel to simulate the operation of a vascular interventional operation, and is particularly suitable for interventional operation training of the medical personnel novice, so that the medical personnel can be familiar with the operation process of the operation within a short time at zero risk. In addition, the vascular interventional operation simulator can also be used for research and development experiments of vascular interventional operation equipment, and the practicability of the equipment can be conveniently verified.

The invention provides a store floodwater area risk fund construction method based on system dynamics. The store floodwater area risk fund construction method based on system dynamics is characterized by comprising the steps of: (1), collecting basic information of a reservoir and a store floodwater area in a drainage basin; (2), according to the collected basic information, establishing a system dynamic model of the drainage basin; (3), providing multiple risk fund operation alternative schemes, and respectively substituting the various alternative schemes into the system dynamic model to perform simulative operation, so that fund operation results are obtained; (4), establishing an index system, and evaluating the fund operation results of the various schemes; and (5), on the basis of the evaluation condition, preferentially selecting a fund scheme from the alternative schemes.

The invention discloses a real wind regime and wind power generation simulation device with a wind shear and tower shadow effect. The real wind regime and wind power generation simulation device comprises a simulator control system and an electromechanical servo system, the simulator control system comprises a software system and a hardware system, the simulator control hardware system comprises an industrial personal computer and a data collecting card; the simulator control soft system comprises a wind speed generation model, a draught fan tip speed ratio estimation model, a draught fan pitch angle control model, a wind energy utilization coefficient model, a wind shear and tower shadow effect compensation model, a wind driven generator drive chain model and an induction generator model,the electromechanical servo system comprises a programmable controller, a direct current bus power module, a frequency conversion driving unit, a frequency conversion power generation unit, a drivingmotor, a loading motor, a rotating speed torque meter and a test bed. The real wind regime and wind power generation simulation device is used for the simulation of wind power generation process andresearch and application of wind power generation control strategy under laboratory environment.

The invention relates to the field of computational physics and materials science, and applies quantum theory to simulation of magnetic skyrmion lattices and magnetic vortex lattices. The method comprises the steps that: 1, respective rotations in the Hamiltonian quantity of the magnetic system are quantum mechanics operators; 2, all physical quantities are calculated strictly according to a quantum theory; 3, a self-consistent algorithm is adopted; 4, simulation is performed on gradual reduction to low temperature from high temperature so as to ensure correct convergence of a program; 5, periodic boundary conditions are adopted; 6, a vertical external magnetic field is considered, so that spiral stripes generated by the exchange effect of the DMI and the Heisenberg are changed into skyrmion or vortex lattices; 7, when Heisenberg exchange and DMI effects coexist, the Compass type anisotropy effect is considered, and skyrmion lattices with the opposite neighbor vortex directions are simulated. The defects of micro-magnetism and a Monte-Carlo two-classic method are overcome, so that simulation is very flexible and convenient, and particularly in a quantum scale, a periodic magnetic structure which cannot be calculated by the two-classic method is simulated.

The invention discloses a multi-parameter complex extreme environment simulation device which comprises an environment simulation device base, a shell is arranged on the base, the top of the shell is sealed through an upper cover, and an internal pressure and airflow speed control port is formed in the center of the upper cover; a circle of thermal protection surface simulation wheel disc rotating controllers are evenly distributed on the lower portion of the shell in the circumferential direction, each wheel disc rotating controller drives a driving wheel located on the inner wall of the shell to rotate, a replaceable thermal protection surface simulation rotating wheel disc is supported on the driving wheel located on the circle, a plurality of adjustable flame spray gun emitting holes are evenly distributed in the surface of the rotating wheel disc, and each flame spray gun outlet hole is connected with a flame spray gun; and an internal gas component control port is arranged at the bottom of the shell and above the thermal protection surface simulation rotating wheel disc. The device is simple in structure and easy to operate, a small complex extreme environment which meets different scene requirements and is controllable in multiple parameters is constructed in limited environments such as a laboratory environment, and a tested experimental object with certain confidence is provided for the complex extreme environment.

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 discloses a push-pull type air blower for simulating the automobile operating environment. The push-pull type air blower comprises a flat support formed by sequentially connecting steel products, four automobile wheels are installed at the bottom of the flat support, two mutually-parallel supports are installed on the flat support, the two supports are parallel to each other, the inner sides of the two supports are respectively provided with a hanging plate, hanging holes are formed in the hanging plates, an air blower body is installed between the two hanging holes, the lateral faces of the air blower body are provided with hanging rods matched with the hanging holes, overall U-shaped push-pull rods are installed at the tops of the two supports, and the two ends of the U-shaped push-pull rods are installed at the tops of the two supports respectively. According to the push-pull type air blower, the air blower body can rotate around the hanging rods to form an air source which can be pushed on the ground, and the air direction of the air source can be changed; the U-shaped push-pull rods are adopted, and the air blower body can stay in a U-shaped space in the rotation process, so that damage, caused by collision with other objects, to the air blower body is avoided.

The invention provides a DC high-voltage large-current circuit open-circuit fault dynamic simulation electronic device, which comprises a DC high-voltage relay and the like. The DC high-voltage relay and a clamp voltage bypass component are connected in parallel, and then, are connected in series in a direct-current circuit through a first connection end and a second connection end; the DC high-voltage relay is used for simulating open-circuit fault and normal connection states of a DC high-voltage large-current circuit; and the clamp voltage bypass component is used for providing short-time shunting for the DC high-voltage relay in the process of disconnecting the DC high-voltage relay to simulate the open-circuit fault, and automatically clamping the voltage drop of the input and output ends of the DC high-voltage relay within a range capable of preventing contact damage of the DC high-voltage relay so as to prevent damage to the DC high-voltage relay. The device can dynamically simulate the open-circuit fault of the DC high-voltage large-current circuit, and the simulation can be achieved losslessly, repeatedly and flexibly.

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 invention discloses an air blower support for simulating an automobile operating environment. The air blower support comprises a flat plate frame formed by connecting steel in sequence, wherein four wheels are arranged on the bottom of the flat plate frame, the upper surface of the flat plate frame is provided with two parallel supports, the two supports are parallel with each other, hanging plates are installed on inner sides of the two supports, and hanging holes are arranged in the hanging plates. According to the air blower support, the hanging plates are arranged on the two supports, the two hanging plates are parallel with each other oppositely, the hanging holes are arranged in the two hanging plates, two hanging rods are installed on side faces of a blower, the hanging rods are inserted into the two hanging holes to form the blower making the hanging rods as supporting points, an air source capable of being pushed on the ground is formed, power of the blower can be regulated to change the air speed, and the purpose of flexibly simulating the environment is realized.

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.

The invention discloses an underwater target spectrum polarization multi-dimensional characteristic test simulation device and a measurement method, and belongs to the technical field of optical underwater transmission characteristic measurement and analysis. The simulation device comprises a transmitting system, an underwater environment simulation system, a receiving system, an information processing system, a water injection system and a drainage system. A water tank, a light source and the like are utilized indoors to simulate a complex and changeable underwater environment, a polarized light source and a focal plane camera are combined to determine the optimal imaging angle and distance, then different spectral wavelengths, medium concentrations, water body depths, temperature stratification and salinity stratification are performed, an indoor simulation experiment environment is established for polarization characteristic analysis of an underwater target, environments under various conditions can be flexibly simulated, and the conditions that the imaging effect is poor and unclear are improved. It is proved that the polarization characteristics of the underwater target are different under different conditions, and a theoretical basis and real data support are provided for research on the polarization characteristics of a real underwater environment target.

The invention discloses a distribution transformer for simulating a short circuit state of a winding. The distribution transformer comprises an iron core, a low-voltage winding and a high-voltage winding, wherein the low-voltage winding and the high-voltage winding are sequentially arranged on the iron core from inside to outside; a plurality of winding interlayer taps are arranged on different wire layers of the high-voltage winding; a plurality of winding inter-turn taps are arranged on different winding turns of a same wire layer; a shell is arranged outside the iron core, the low-voltage winding and the high-voltage winding; four lead casings are fixedly arranged on the shell; leads of the low-voltage winding and the high-voltage winding are led out of the shell via corresponding lead bushings respectively; a first spiral ranging conductive rod and a second spiral ranging conductive rod corresponding to the winding interlayer taps and the winding inter-turn taps respectively are fixedly arranged on the shell. By adopting the distribution transformer, short connection parts of the winding interlayer taps and the winding inter-turn taps can be precisely controlled, and in addition, the lengths of the conductive rods can be changed; the distribution transformer is simple in structure, flexible to operate, high in accuracy of simulation experiment results, and applicable to popularization and application.

The invention relates to a simulation platform and simulation method for power distribution network loop closing and breaking with phase angle difference. The platform comprises a drawing function module and a loop current calculation module; and the drawing function module comprises a drawing interface and an electrical equipment model adding module. with middle and low voltage sides of 220kV transformer models adopted as starting power supply points, on the basis of the actual grid structure of a regional power grid, corresponding electrical equipment models are added to the drawing interface through the electrical equipment model adding module, and and the setting of the parameters and states of all the electrical equipment models and mutual connection of the electrical equipment models are completed according to the actual grid structure of the regional power grid, and finally a power flow simulation diagram with the middle and low voltage sides of all the 220kV transformer models as the starting power supply points is drawn. In the prior art, the power distribution network loop closing and breaking with phase angle difference is manually calculated and analyzed by technicians, as a result, conclusion error is large, an analysis result is simple and the significance to actual operation is not great,and power grid accidents and risks are easy to occur when operation is carried out according to the analysis result. With the platform and method adopted, the above problems can be solved.

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 discloses a common direct current bus type aircraft starting power generation system simulating method and device. The simulating device is used for simulating the starting and power generation processes of an aircraft starting and power generation system, and testing the aircraft starting and power generation system during research, development and testing phases. The simulating device comprises a direct current power supply, a starting generator control converter, a starting generator simulator, a circulating current suppression reactor, a starting generator simulator control system and a host computer. The invention further discloses the simulating method of the common direct current bus type aircraft starting power generation system simulating device. According to the invention, the simulating method and device simulate the starting and power generation processes of an aircraft; the parameters of the device can be flexibly modified; the power energy loss is small; a huge cooling device is omitted; and the lead time and the development cost are shortened.

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.

The invention discloses an air blower for simulating an automobile operating environment. The air blower comprises a flat plate frame formed by connecting steel in sequence, wherein four wheels are arranged on the bottom of the flat plate frame, the upper surface of the flat plate frame is provided with two parallel supports, the two supports are parallel with each other, hanging plates are installed on inner sides of the two supports, hanging holes are arranged in the hanging plates, a blower body is installed between the two handing holes, and hanging rods matched with the hanging holes are installed on side faces of the blower body. According to the air blower, the hanging holes are arranged in the two hanging plates, the two hanging rods are installed on the side faces of the blower body, the two hanging rods are matched with the hanging holes respectively, the hanging rods are inserted into the two hanging holes to form a structure making the hanging rods as supporting points, the blower body can rotate around the hanging rods, an air source capable of being pushed on the ground and changeable in wind direction is formed, meanwhile power of the blower body can be regulated to change the air speed to form wind in any directions and of any levels, and the purpose of flexibly simulating the environment is realized.

The invention discloses a support of a push-pull type air blower for simulating the air exhaust environment during automobile running. The support of the push-pull type air blower comprises a flat support formed by sequentially connecting steel products, four automobile wheels are installed at the bottom of the flat support, two mutually-parallel supports are installed on the flat support, the whole of each support is triangular, the two supports are parallel to each other, two arc-shaped strips are installed between the two supports, the bottoms of the two arc-shaped strips are fixed on the frames of the two sides of the flat support respectively, overall U-shaped push-pull rods are installed at the tops of the two supports, and the two ends of the U-shaped push-pull rods are installed at the tops of the two supports respectively. According to the support of the push-pull type air blower, a saddle-shaped containing structure is formed by the two supports, the flat support and the two arc-shaped strips, an air blower is installed in the middle of the saddle-shaped containing structure, and therefore an air source capable of being pushed on the ground is formed; the U-shaped push-pull rods are adopted, the air blower can stay in a U-shaped space in the rotation process, and therefore damage, caused by collision with other objects, to the air blower is avoided.

The invention provides an airport control behavior simulation method based on scene network resource dynamic locking, and the method comprises the steps: constructing an airport scene network model, forming normalized airport scene structure data based on the airport scene network model, achieving the digital expression of a network topology relation between airport scene elements, and setting a scene operation rule. And generating simulation plan data, starting simulation, simulating machine position distribution, runway distribution and sliding path distribution behaviors based on a set scene operation rule, and carrying out resource dynamic locking and unlocking by taking a key point of a taxiway and a bidirectional sliding road section as focuses. A control behavior instruction is generated based on the real-time resource request of the aircraft and the state of the requested resource, and control behavior modeling simulation of the taxiing process is achieved. The method is more suitable for an actual control behavior mode, and can be applied to airport flight area operation simulation evaluation and airport scene automatic control.

The invention relates to an aviation test device, and particularly relates to a pneumatic model tester for an aircraft engine. An inner culvert shell (4) is arranged inside an outer culvert shell (2), the inner culvert shell (4) and the outer culvert shell (2) are respectively communicated with an air inlet device, the air inlet device is a pipeline with a U-shaped section, and an expansion joint is respectively arranged on the pipeline communicated with two ends of the U-shaped section and the linear section of the U-shaped section pipeline. The tester is compact in structure size, can quickly realize studies of engine exhaust parameters and characteristics thereof in a test cabin, can simulate the test condition in the test cabin under the real test condition, can directly acquire high-precision thrust measurement influencing data in the test cabin, and provides test correction and technical support for real engine test. Flowing of inner and outer culverts is separately simulated, so that main engines such as turbojet engines, inner and outer culvert separated exhausting turbofan engines, inner and outer culvert hybrid exhausting turbofan engines and the like can be flexibly simulated.

The invention provides a DC high-voltage large-current circuit open-circuit fault dynamic simulation electronic device, which comprises a DC high-voltage relay and the like. The DC high-voltage relay and a clamp voltage bypass component are connected in parallel, and then, are connected in series in a direct-current circuit through a first connection end and a second connection end; the DC high-voltage relay is used for simulating open-circuit fault and normal connection states of a DC high-voltage large-current circuit; and the clamp voltage bypass component is used for providing short-time shunting for the DC high-voltage relay in the process of disconnecting the DC high-voltage relay to simulate the open-circuit fault, and automatically clamping the voltage drop of the input and output ends of the DC high-voltage relay within a range capable of preventing contact damage of the DC high-voltage relay so as to prevent damage to the DC high-voltage relay. The device can dynamically simulate the open-circuit fault of the DC high-voltage large-current circuit, and the simulation can be achieved losslessly, repeatedly and flexibly.

The invention discloses a common direct current bus type aircraft starting power generation system simulating method and device. The simulating device is used for simulating the starting and power generation processes of an aircraft starting and power generation system, and testing the aircraft starting and power generation system during research, development and testing phases. The simulating device comprises a direct current power supply, a starting generator control converter, a starting generator simulator, a circulating current suppression reactor, a starting generator simulator control system and a host computer. The invention further discloses the simulating method of the common direct current bus type aircraft starting power generation system simulating device. According to the invention, the simulating method and device simulate the starting and power generation processes of an aircraft; the parameters of the device can be flexibly modified; the power energy loss is small; a huge cooling device is omitted; and the lead time and the development cost are shortened.