485results about How to "Reduce research costs" patented technology

A system and method for reconstructing pathways in large genetic networks from genetic perturbations comprises an analysis method and system that applies a recursive algorithm for determining the path between every gene pair in an arbitrarily large genetic network from large-scale gene perturbation data and reconstructs all direct and indirect regulatory gene interactions in the network. Graph theory mathematics is applied to genetic network reconstruction in the following manner: Genetic perturbation data is used to identify all genes accessible from a perturbed gene to generate an accessibility list for the gene. Graph theory mathematics is applied to the accessibility list and its graph to determine a condensation of the graph as defined by the condensation's accessibility list. Graph theory mathematics is applied to the accessibility list, such as through a recursive algorithm performed on a desktop computer, to obtain an adjacency list for the gene that characterizes a genetic network.

The invention discloses a vehicle testing system and method. The system comprises a scene building platform, a driving state collecting device and a processor, wherein the scene building platform is used for building a traffic environment model according to the testing case, and building the vehicle model to be tested according to the vehicle parameters of the vehicle to be tested; the driving state collecting device is used for collecting the actual running state information of the vehicle to be tested and sending the actual driving state information to the processor; the processor is used for synchronizing the actual running state information to a to-be-tested vehicle model, and generating a control instruction of the vehicle to be tested according to the virtual driving state information of the vehicle model to be tested in the traffic environment model. Therefore, the system can carry out automatic vehicle driving test under the simulation environment; the test time is effectivelyshortened, and the research cost is reduced; the accidents that are likely to occur in a real environment can be prevented, and the safety of the test can be improved.

The invention relates to the field of traffic forecasting. A road traffic forecasting method comprises the steps that information collecting is carried out, namely vehicle driving related information and traffic forecasting auxiliary information are collected; driving path analyzing is carried out, so as to calculate the driving path, which takes a road as an element, of each vehicle to acquire driving path data; road traffic threshold calculation and vehicle behavior chain analysis are carried out, wherein road traffic threshold calculation is used for calculating the traffic threshold of each road in different flow states, and vehicle behavior chain analysis is used for analyzing and calculating the behavior chain of each vehicle; vehicle behavior mode analysis is carried out to analyze and calculate the travel mode of each vehicle; vehicle travel forecasting is carried out to forecast the travel purpose, the starting point, the driving path, the probability and the time of each vehicle in future; road traffic forecasting is carried out to forecast the flow, the flow patterns, the vehicle sources and the destinations of different roads at different times in future; and information releasing is carried out on a road traffic forecasting result.

The present invention discloses a large-scale routing simulation method based on the hardware, and provides a large-scale routing simulation technique which is realized with a high-performance special network processing specialized platform. The initialization process of simulation is generated sequentially by three steps of: simulation of the network performance, loading of the corresponding QoS algorithm code and the virtual routing table. The simulation process comprises the following steps: firstly, receiving the real network data packages; then, converting the real network data packages to the virtual packages used for simulation; transmitting the virtual data packages between the virtual network devices; and converting the data packages to real data packages for entering the real network. The large-scale network routing simulation method based on hardware according to the invention has the advantages of high processing performance, providing of reliable virtual-real converting interface, strong extendibility, reduced cost, reinforced convenience and reinforced operability.

An Internet product research system based on data mining is composed of an information collecting module, an information pre-processing module, a product general picture analysis module, a sentiment analysis module, a user behavior analysis module and a data showing module. All kinds of information related to a product on the Internet are collected automatically through the system and are pre-processed, comprehensive analysis is carried out through a data mining and natural language processing technology, and therefore the analysis results of the general picture analysis related to the product, the market public praise analysis of the different functions of the product, the contrastive analysis of different products, user group analysis and other different aspects are formed fast, and fast and solid supports are provided for product analysis and marketing decisions. Internet information resource advantages are fully utilized, the product can be researched according to user needs, manpower and material resources needed by the research can be saved, and market trends can be reflected and tracked in time.

The invention discloses a ship cabin indoor explosion structure damage evaluation method based on an equivalent scale model. The ship cabin indoor explosion structure damage evaluation method comprises the following steps: obtaining an impact wave pressure curve and a quasi-static pressure curve of explosion of equivalent filling in a scale cabin by adopting a pressure sensor; processing test data to obtain a pressure peak value and corresponding pressure impulse; determining a damage rule of the explosion in the equivalent cabin according to the positive pressure acting time of pressure born by the cabin wall and the natural vibration period of the cabin; dividing damage grades and determining a structure damage threshold value of the equivalent cabin; and evaluating damage effects of a ship cabin structure by taking the structure damage threshold value as the basis. The invention provides the ship cabin indoor explosion structure damage evaluation method based on the equivalent scale model by taking a ship cabin indoor explosion effect scale equivalent model as a test carrier, so that the testing cost can be reduced, the researching period is shortened, and the development and application of anti-ship weapons are effectively supported.

The invention provides an aircraft engine casing static test method and a testing assembly thereof. The method comprises the following steps of: assembling a plurality of casings to be tested to form the testing assembly according to an actual assembly requirement of an aircraft engine; fixing the testing assembly; applying simulation load to the testing assembly; and testing according to preset testing items. In the provided test method, the casings of the aircraft engine are combined for testing, mutual influence among the plurality of casings is considered, the load transmission among the casings is more truly simulated in the process of operating the aircraft engine, tested conclusion is more true and reliable, the test period can be effectively shortened by about 2 / 3, and the cost ofscientific research is reduced.

The invention relates to a cloud computing platform-oriented scientific workflow system and method. A customization module customizes a display layer, a workflow layer, an executive layer and a computing environment; an automatic deployment module automatically deploys the computing environment according to a computing environment abstract description of the customization module and a corresponding scientific software automatic configuration script; and an executive module accurately dispatches calculation steps of a scientific workflow and runs in the cloud computing environment. According to the system and the method, more customizable scientific workflow services can be provided for scientific research personnel; scientific workflow processes can be customized according to scientific experiment demands; computing resources in a cloud platform are rented as needed; the limitation of computing resources in a machine room of a lab is avoided; the limitation in manually installing a software tool to deploy the computing environment is avoided; it is not required to perform manual tracking and execute the calculation steps; and the system and the method are suitable for large-scale scientific data analysis tasks.

The invention discloses a protection device for tumbling out of control of a rotor type unmanned aerial vehicle (UAV), and the technical scheme thereof is characterized in comprising ejection cylinders, a high-pressure gas cylinder, ejection opening and closing doors, a posture sensor and a control module, wherein top plates are mounted inside the ejection cylinders; each top plate divides the corresponding ejection cylinder into a high-pressure chamber and an ejection chamber; each ejection chamber is provided with a self-throwing parachute and the bottom of each high-pressure chamber is provided with an air inlet; the high-pressure gas cylinder is respectively connected with the air inlets of the two ejection cylinders through air duct pipes, and electromagnetic valves are respectively mounted near the two air inlets; the ejection opening and closing doors are hinged to the opening of the ejection cylinders; hinge shafts are provided with torsion springs; fixed parts for closing the ejection opening and closing doors at the opening of the ejection cylinders are mounted on the ejection cylinders; the posture sensor is arranged in a UAV body to periodically detect posture change data of the UAV body; and the control module receives the posture change data and outputs a corresponding control signal to the corresponding solenoid valve and the corresponding fixed part according to an angle of inclination to control the self-throwing parachute in the corresponding ejector cylinder to be forced out of the corresponding ejection chamber under the high pressure gas.

The invention discloses a deep-sea floor pore water pressure long-term observation automatic laying system and a deep-sea floor pore water pressure long-term observation automatic laying method. The system comprises an automatic lifting pore pressure meter, a underwater acoustic / long wave communicator, a ship-borne controller and a laying apparatus; the automatic lifting pore pressure meter orderly comprises a lower drill, a balance weight, a master control cabin, a floating body material, an upper drill and a protective rest from bottom to top; the underwater acoustic / long wave communicator and the ship-borne controller are used for controlling the automatic lifting pore pressure meter. A laying bracket and the automatic lifting pore pressure are sent into the seabed surface through a hook while laying; the lower drill begins drilling hole to enter sediment, and the stops running after arriving a set depth; and then the hook is packed up through a cable to finish the laying. When the system is used for recycling, a releaser is started through the emission of a control signal, parts of the automatic lifting pore pressure meter except the lower drill and the balance weight thereof are separated so that the automatic lifting pore pressure meter is floated, and recycled. The repeated laying-recycling of a complex deep-sea instrument is avoided, the working efficiency is improved, the research cost is lowered, and the artificial disturbance on the field search environment in the laying-recycling process is avoided.

The invention relates to a SAR image based on adversarial generation network, and a visible light image mode conversion method. The method comprises: firstly, extracting feature vectors of satellite images at the same position, and enabling the feature vectors to serve as the prior information of the SAR image; And inputting the priori information and the SAR image into a generator to generate a visible light image with an SAR image target. Secondly, a discriminator in the generative adversarial network is trained, and a formula LGAN (GAB, D, A and B) = Eb-B [log D (b)] + Ea-A [log (1-D (GAB (a)))] is adopted as discrimination loss; And finally, judging whether the trained adversarial generation network has a model folding error or not, namely inputting different SAR images, and enabling most of the output of the generator to be the same visible light image. And meanwhile, another generator is trained, and the feature similarity of the two images is compared by adopting generation loss; generating a loss of LGAN (GAB, GBA, A, B) = Ea-A [| | GAB (GBA (a))- A||1]. And when network training is completed, curves of the judgment loss and the generation loss tend to be stable, the judgment loss is not increased any more, and the generation loss is not reduced any more.

The invention discloses an explosive loading and penetrating stability evaluation method based on an equivalent model experiment. The method comprises the following steps that firstly, dynamic mechanical performance and thermophysical parameters of explosive loading are actually measured, and a largest compression load and a largest friction load which are borne in the penetrating process of explosive loading are determined by means of numerical simulation; secondly, a loading device equivalent to a corresponding stimulus type is designed, reaction conditions of loaded explosive under stimulus of different load intensities are observed through an intensifying experiment method, and the explosive loading and penetrating stability reliability is calculated according to an intensification coefficient; finally, the explosive loading and penetrating stability reliability calculated through the model experiment is compared with that of the engineering test requirement, and whether the explosive loading and penetrating stability reliability meets the engineering test requirement or not is judged. The method for evaluating the explosive loading and penetrating stability through the model experiment can reduce the experiment cost, shorten a research cycle and effectively support application and development of a penetrating warhead.

The invention discloses an intelligent out-of-control protection system for a rotary wing type unmanned aerial vehicle. The intelligent out-of-control protection system comprises the following equipment of a power source, an attitude sensor, a height sensor, a control chip, a first steering engine, a second steering engine, a shock absorption autoinflation air cushion, a catapult and a self-throwing type parachute, wherein the power source is used for supplying power to the control chip, the attitude sensor, the height sensor, the first steering engine, the second steering engine and the catapult; the attitude sensor and the height sensor are used for acquiring attitude data and height data of the rotary wing type unmanned aerial vehicle and sending the attitude data and the height data to the control chip; the control chip is used for analyzing the attitude data and the height data and sending out a control signal to the first steering engine and the second steering engine; the first steering engine is used for controlling the catapult to be started and stopped; the second steering engine is used for controlling an autoinflation device to inflate air into the shock absorption autoinflation air cushion; the shock absorption autoinflation air cushion is installed at the bottom of the rotary wing type unmanned aerial vehicle; the catapult is fixed to the top of the rotary wing type unmanned aerial vehicle; and the self-throwing type parachute is installed inside the catapult.

The invention discloses a numerical method for a graded crushed stone dynamic triaxial test. The numerical method comprises the following steps of: simulating the graded crushed stone dynamic triaxial test through establishing a physical model and a mechanical model by using a PFC2D software platform, wherein the simulation operation comprises test of basic parameters, simulation of a test model and generation of a graded crushed stone simulation specimen; secondly, giving micro mechanical parameters to the physical model, and constructing the mechanical model; and then, carrying out repeated dynamic load simulation on the graded crushed stone simulation specimen so as to obtain a graded crushed stone stress-strain curve and a graded crushed stone permanent deformation-loading frequency curve. According to the numerical method disclosed by the invention, the graded crushed stone permanent deformation-loading frequency curve in a triaxial test can be reproduced accurately, conveniently and quickly, and a graded crushed stone deformation rule is disclosed, so that the graded crushed stone fracture mechanism is favorable to research intensively; and the problems of high instrument price and inconvenience for operation in an indoor dynamic triaxial test are avoided, so that the test efficiency is improved, and the research cost is saved.

The invention belongs to the technical field of automobile electric power steering, and specifically relates to a performance test system for an automobile electric power steering system. The performance test system includes a testing stand pedestal, a motion control mechanism for providing experiment simulation kinetic energy input, and a measurement and control system for performing detection and acquisition of experimental data, wherein the measurement and control system includes a real-time controller, a sensor unit and a data acquisition module; the sensor unit is connected with the real-time controller through the data acquisition module; and the real-time controller is connected with an upper computer. The performance test system for an automobile electric power steering system can complete a performance test for an electric power steering system indoors so as to save the real vehicle experiment to effectively reduce the cost, and is high in accuracy and reliability.

The invention mainly belongs to the field of oil and gas exploration and development, and particularly relates to an oil-gas field on-site while-drilling cuttings scanning system and method. The oil-gas field on-site while-drilling cuttings scanning system comprises a sample preparation mould and a table-type mineral analysis scanning electron microscope; oil-gas field on-site while-drilling cuttings are prepared to a scanning sample through the sample preparation mould; the table-type mineral analysis scanning electron microscope comprises a secondary electronic probe, a backscattered electron probe, an energy spectrum probe and an electron microscope operation module; and the table-type mineral analysis scanning electron microscope is small in weight, small in land occupation, easy to carry and is suitable for the severe environment in a well field. According to an oil-gas field on-site while-drilling cuttings scanning method, the on-site while-drilling cuttings are fully utilized, mineral elements, mineral types and rock structures are rapidly analyzed, and lithology classification is quickly conducted; and the oil-gas field on-site while-drilling cuttings scanning method has the advantage of on-site real-time guidance drilling and oil-gas field exploration and development, limitation that a laboratory traditional mineral analysis electron microscope scanning system cannot be carried to the site for application is overcome, and the oil-gas field exploration precision and speed are improved.

The present invention relates to a method for selecting pharmacological compounds for selective inhibition of cancer cells comprising identifying a compound, determining the reduction potential (ER) of the compound, and selecting the compound which has a reduction potential from −1.1 to −0.8 volts. The invention also relates to a pharmacological compound comprising at least one cyanine dye or merocyanine dye, wherein the dye has at least one cationic substituent, wherein the dye has a reduction potential of from—1.1 to 0.8 volts, and wherein the pharmacological compound demonstrates selective inhibition of cancer cells.

The invention discloses a method and a system for discovering and integrating rectal cancer related genes by utilizing public data resources and analyzing functions of the rectal cancer related genes, and an application. Based on the public data resources, open big data resources and diversified bioinformatics analysis means are reasonably used for performing analysis processing on mRNA expression data, and important genes related to complex diseases and functions of the important genes are identified. The method comprises the steps of sample data downloading and management; gene expression data analysis; difference expression gene screening; and gene function analysis and protein interaction analysis. According to the method and the system, the problems of weakness in integrating existing network resources, unfamiliarity with mRNA related most common databases and frontal analysis methods, incapability of independently finishing mRNA expression spectrum related bioinformatics analysis and the like can be solved; a plurality of risk pathways and genes related to the complex diseases such as the rectal cancer and the like can be discovered; and the method and the system are of important significance for biological targeted treatment of the complex diseases, biological drug research and development, pathogenesis explanation and risk prediction.

The invention discloses a flow field characteristic experiment device of a combustion chamber of a hydrogen-burning gas turbine. The flow field characteristic experiment device comprises three pairs of bluff body arrangement combustion chamber experiment pieces, a particle image velocimetry (PIV) test platform frame, a PIV test system and a pressure difference and environment temperature test system. The three pairs of bluff body arrangement combustion chamber experiment pieces comprise a front lateral plate, a front bluff body, a back bluff body, an affiliation mechanism of the back bluff body, a front top plate and a back top plate. A tracer particle injection pipe jack is arranged on the front lateral plate, an inlet speed probe jack is arranged on the front top plate, and an outlet speed probe jack is arranged on the back top plate. A tracer particle generator is connected with the tracer particle injection pipe jack on the front lateral plate. The device adopts the PIV test technology, selects reasonable combustion chamber position, reasonably mingles tracer particles into a main gas flow under the effects of the tracer particle generator and a tracer particle injection pipe, enables tracking particles in the test area to be evenly distributed and conducts visualization experiment of cold state flowing speed vector distribution of three pairs of bluff arrangement combustion chambers.

The invention relates to an adjustable female upper body soft manikin. The main body of the adjustable soft manikin is a moveable female upper body soft manikin which is divided into three layers from inside to outside, including a skeleton model and artificial joints, latex sponge, polyurethane thermal shrinkable elastomer and liquid silicone, and imitated skin cloth. The adjustable female upper body soft manikin can vividly imitate human movements, and can be a good model to show the effect and comfort degree of the clothing for the upper body of a woman under different movement patterns and is helpful to clothing pressure forecasting of a person under different movement patterns. The adjustable female upper body soft manikin can make the clothing pressure testing standards objective and uniform as much as possible, thus providing a good information carrier and an important technical platform for further research of clothing comfortableness and for practical application in enterprises.

The invention provides a method for carrying out test tube grafting and rejuvenization on paulownia fortunei select tree, comprising the following steps: grafting and rejuvenation of select trees; tissue culture and test tube grafting and rejuvenization; explant sterilization; primary culture; test tube grafting and rejuvenization; secondary enrichment culture; induced rootedness; and seedling adaptation and transplantation. In the invention, the select trees suffering from serious ripening are grafted and rejuvenated; then tissue culture and test tube grafting and rejuvenization are carried out on the select tree to overcome the defects that the root segment of the paulownia fortunei select tree is difficult and the germination rate of buffing roots is low so as to effectively realize rejuvenization of the paulownia fortunei select tree, shorten rejuvenization cycle of the paulownia fortunei select tree, and powerfully promote breeding process of the paulownia fortunei. In the invention, the pronounced problem that the paulownia fortunei select tree suffers from serious ripening and low capacity in vegetative propagation can be solved, rejuvenization success rate and rejuvenization efficiency of the paulownia fortunei select tree can be improved and scientific research costs can be reduced.

The invention discloses a numerical analysis method for the piping phenomenon. The method comprises the steps of obtaining a seepage deformation similarity criterion on the basis of a fluid dynamics similarity criterion combined with alternate force acting item of medium on fluid; building a microscopic particle model on the basis of the seepage deformation similarity criterion combined with a particle flow method, wherein the model is consistent with a prototype in gravity horizontality; generating skeleton and filling particles under the conditions of zooming particle size distribution and maintaining the same porosity; conducting piping process simulation on the model, and outputting parameter information inside the model when the filling particles in the model reach the balance state or the skeleton particles are damaged; obtaining the actual numerical value by combining the seepage deformation similarity criterion with the parameter information inside the model, and feeding the actual numerical value back to the prototype so as to analyze the piping phenomenon. The numerical analysis method for the piping phenomenon conforms to the Darcy law and the non-Darcy law, the model can truly describe the prototype when two flow states exist at the same time, the problem that a conventional model or a centrifugal test cannot achieve same-ratio zooming of the particle diameter and the model is solved, and analysis is accurate.

The invention discloses a motor and hydraulic pressure combined drive in-situ test device for the structure properties of materials, and belongs to the technical field of material structure performance in-situ detection. The device comprises an outer frame, left-handed and right-handed ball screws, a moving base A, a moving base B, a sample chuck, a motor drive system and a hydraulic drive system. The device has good experimental equipment compatibility; servo motor and hydraulic pressure dual drive is adopted, tension or pressure force is large, and the strength range of the experimental materials is expanded; the moving distance of the sample chuck is long, and large deformation can be achieved; displacement and force detection precision is high; the deformation rate can be controlled, and displacement or force closed-loop control can be achieved. The device can be used independently or used in cooperation with X-ray diffraction equipment, the problem that only end state detection can be conducted in existing experiments is well solved, and material structure changes in a transient state and material structure changes at special strain points in tension and compression of the sample can be observed in situ.

The invention discloses a construction method of a multi-scale prediction model of a chloride ion diffusion coefficient of prestressed concrete. The method is characterized by: regarding the concreteas a cement-based composite material composed of different-scale materials, establishing prediction models of chloride ion diffusion coefficients of the different-scale cement-based materials in sequence with gradual transition from small-scale hardened cement slurry to large-scale concrete, then considering influences which are of prestress inside the prestressed concrete and on chloride ion diffusion thereof, and finally, establishing the multi-scale prediction model of the chloride ion diffusion coefficient of the prestressed concrete. According to the method, influences of prestress levelson chloride ion diffusion are studied by starting from multi-scale structure formations of the cement-based materials, and the established multi-scale prediction model of the chloride ion diffusion coefficient of the prestressed concrete has very important significance for chloride ion penetration resistance study and durability design of the prestressed concrete.

The invention discloses a humanoid robot soccer competition real-time simulation system of the computer simulation technology field, and comprises four modules: a client end, a server, a monitoring module and an information interaction module. Three humanoid robot modules are arranged on the client end, each humanoid robot module obtains the scene information from the server by the information interaction module, reconstructs the scene competition environmental module, analyzes the current environment, generates the decision information and synthesizes the standard instruction to be sent to the server by the information interaction module, so as to carry out the competition between the two teams; the monitoring module carries out the real-time display of the conditions of the competition between the two teams, and the four modules construct the three-to-three humanoid robot soccer competition 3D real-time simulation system. The humanoid robot soccer competition real-time simulation system actually reflects the process of the humanoid robot soccer competition and provides a great test platform for improving various theories, algorithms and the structure of the humanoid robot system.

A bridge investigation method includes the steps of firstly, acquiring three-dimensional ground and geological data, and generating a DGSM (digital geological solid model); secondly, generating a DGESM (digital geological surface or solid model); thirdly, generating a DBSM (digital bridge solid model); fourthly, generating a bridge global three-dimensional solid surface model; fifthly, subjecting the bridge global three-dimensional solid surface model to bridge structure solid mechanical analysis, and selecting road alignment schemes and bridge schemes; sixthly, establishing a geological solid sectional prediction model, and optimizing road and bridge schemes; seventhly, using the bridge global three-dimensional solid surface model to generate a three-dimensional steel bar diaphragm of a bridge structure; eighthly, generating structural diaphragms of superstructure and understructure of a bridge; ninthly, generating a constructional-phase solid of the superstructure and the understructure of the bridge; and tenthly, comparing an after-building three-dimensional bridge solid model to a pre-building bridge global three-dimensional solid surface model to obtain parameters such as displacement, settlement, deformation and the like for bridge detection. By the method, the bridge and geological three-dimensional conditions can be obtained directly, the road and bridge schemes can be selected accurately, visually and conveniently, rework amount can be reduced effectively, investigation quality, constructional safety and bride stability can be improved, the problem of coordination of the bridge with environment and geology is solved, and bridge design effect is improved evidently. The method is widely applicable to bridge investigation and can be applied to engineering application by configuring corresponding software.

The invention discloses epitope for an NY-ESO-1 tumor antigen. The amino acid sequence of the mimic epitope is Ser-Leu-Leu- Met-Phe-Ile-Thr-Trp-Cys, namely SLLMFITWC; the mimic epitope can raise a CTL immunity response, can undergo a cross reaction with a natural epitope, has the characteristics of strong immunogenicity, immune tolerance breaking, strong specificity, safety, low cost, and easy synthesis and storage, and can be used to prepare tumor-therapeutic polypeptide vaccine. The invention also discloses a method for predicting the mimic epitope, which comprises steps of the establishment of a structural model of a TCR-pMHC complex, the analysis of TCR binding sites of the epitope, and the analysis of amino acid replacement of the TCR binding sites of the epitope. The method is also applicable to the computer-aided modification of CTL epitopes of other antigens, and can provide a useful tool for the design and research of therapeutic polypeptide vaccine.

The invention relates to a method and device used for crack and other defect detection of irregular small-curvature curved surface parts, such as defect detection of aircraft engine turbine blades, and belongs to the technical field of electromagnetic nondestructive detection of metal damage and fatigue process. In order to meet the requirements of curved surface crack and other defect detection, a traditional rigid planar array sensor is no longer applicable, only an array sensor must having a certain flexibility can fit with the surface of a to-be-tested piece, the detection gap requirement can be ensured, and the test results are not invalid. A known electromagnetic flexible probe is made by a flexible circuit board making method, is expensive and is difficult to adapt to the needs of studies on sensor structure optimization and basic design. The invention discloses an embedded array structure combining a flexible substrate and a rigid plane electromagnetic coil, the production cost is greatly reduced, and the embedded array structure has the certain ability of bending and deformation, can satisfy the detection requirements of blade small-curvature curved surface test pieces, and has the advantages of being high in detection efficiency, simple and convenient, low-cost and the like.

The invention belongs to the technical field of vehicle parameter measurement, and particularly relates to a recognition method for rotational inertia around z axis and tire cornering stiffness of an automobile. The method comprises the following steps: (1) operating steering wheel angle impulse test according to an automobile operation stability testing method to acquire data, wherein the data comprises a steering wheel angle, yaw velocity, lateral acceleration and a vehicle speed signal; (2) recognizing a transfer function of a vehicle system equivalent two-degree-of-freedom vehicle model through a least square method by using the data acquired by the step (1); (3) recognizing the yaw rotational inertia around the z axis and the tire cornering stiffness of the automobile included in the transfer function obtained by the step (2) through a nonlinear least square method. According to the method, the use of other large-sized experimental instruments is avoided, and the research cost is effectively reduced; the data used by the method is convenient to measure so as to finally facilitate modeling; the speed is high, quick development of research work is facilitated, and the method has higher practicability.

The invention relates to an experiment method and an injury evaluation method of an engineering material and particularly relates to corrosion experiment and injury evaluation methods of the engineering material under a wind sand environment. An experiment system and a method for operating the experiment system are included; the experiment system comprises a wind sand environment simulation system and an erosion room; the injury evaluation method of the engineering material based on a wind sand environment experiment system comprises a weight-loss grading method and a weight-loss rate evaluation method, wherein weight loss is the difference of masses of a test piece before and after an abrasion test, namely deltam=m1-m2; the weight-loss rate is the ratio of the difference of the masses of the test piece before and after the abrasion test to the total mass of sand used in the time period, namely alpha=(deltam / ms*t)*100%=(m1-m2 / ms*t)*100%. The experiment system provided by the invention has the advantages that an actual wind and sand corrosion environment can be really simulated, erosion mechanical parameters are easy to accurately control, a testing period is short and the research cost is low; the experiment and injury evaluation methods explore an erosion abrasion rule and an injury mechanism of the engineering material from macroscopic and microcosmic aspects.