74results about How to "Calculations are reasonable" patented technology

The invention discloses a park and ride facility optimal siting and capacity determining method based on rail transit, which is capable of improving the share rate of public transport by joint optimization of siting and capacity, therefore reducing the total number of motor vehicles into a central business district, and easing the urban traffic congestion. For more reasonable planning of park and ride facilities, the invention determines an optimal site for and the capacity of each park and ride facility by establishing a bilevel mathematical programming model in a multimode transport network and using a joint traffic modal split and traffic assignment model at the lower level, and can solve the above models by applying a heuristic genetic algorithm. Finally, the optimal site for and the corresponding capacity of each park and ride facility in the network are obtained.

The invention discloses a method for calculating the distances between a horizontal well borehole and the upper and lower interfaces of stratum. The method comprises the following steps: dividing the stratum of the whole well section of a target well and determining the initial resistivity value of each stratum; determining the initial stratum inclination angle value of each stratum; determining the initial resistivity value and the initial stratum inclination angle value of a target layer, and determining the resistivity logging curve while drilling corresponding to the target layer; calculating the distance values between a target well borehole trajectory and the upper and lower interfaces of the target layer; generating a resistivity well logging simulated response curve while drilling of the target layer; judging whether the resistivity well logging simulated response curve while drilling of the target layer is consistent with the resistivity logging curve while drilling corresponding to the target layer, interactively inversing and modifying the stratum resistivity value and the stratum inclination angle value of the target layer, and repeating the steps until the resistivity well logging simulated response curve while drilling of the target layer is consistent with the resistivity logging curve while drilling corresponding to the target layer. By the method, the factors of geological background, oil reservoir conditions, engineering environment and the like are fully taken into consideration; calculation results are more reasonable; basis is provided for a well completion design or reservoir reconstruction; perforation horizon optimization is facilitated; an oil-gas recovery ratio is improved.

The invention relates to a drilling speed increase evaluation method based on drill stem-drill bit-rock-shaft system full-scale drilling simulation. According to the technical scheme, the method comprises the following steps: firstly, establishing a finite element model based on drill stem-drill bit-rock-shaft system full-scale drilling simulation, then, analyzing and solving the established model according to the explicit integration algorithm, and finally, evaluating the drilling speed increase according to established evaluation criteria. The process of establishing the finite element model comprises the following steps: establishing a grid model of all components, defining the physical properties of the components and the constitutive relation and breaking failure criteria of rock, establishing a drill tool and well wall random contact and impact model and a drill bit and rock interaction model, and defining boundary conditions. According to the method, the real-time drilling and rock breaking process is simulated with drill bit rock breaking as the boundary conditions of the lower end of the drill stem, and therefore simulation results are closer to the reality, and references are provided for on-site drilling design, drilling parameter optimization, drill bit model selection and drilling speed increase evaluation.

The invention relates to a transverse isotropy stratum elastic coefficient well logging calculation method and device. The method comprises the steps that coring in different directions is carried out on a rock core, and a rock core sample is obtained; the rock core sample is measured, the longitudinal wave speed and the transverse wave speed of the rock core sample are obtained, and elastic coefficients C11, C13, C33, C44 and C66 are obtained by calculation of the longitudinal wave speed and the transverse wave speed; the elastic coefficients C33, C44 and C66 are obtained through array acoustic logging data and density logging data of a coring well; a combination relational expression between the measurable logging elastic coefficients C33, C44 and C66 and the unmeasurable logging elastic coefficients C11 and C13 is built by the utilization of the elastic coefficients C11, C13, C33, C44 and C66 obtained by calculation of the longitudinal wave speed and the transverse wave speed; the elastic coefficients C33, C44 and C66 obtained through the array acoustic logging data and the density logging data of the coring well are substituted to the combination relational expression, the unmeasurable logging elastic coefficients C11 and C13 are obtained, and finally the elastic coefficients representing the transverse isotropy stratum are obtained.

The invention relates to a method for calculating the stability safety factor of a concrete gravity dam under a multi-dam-section combined skid resistance condition and belongs to the field of gravity dam stability analysis. According to the method, a three-dimensional stability analysis calculation model is established on the basis of a three-dimensional rigid body limit balance analysis and strength reduction method by aiming at a situation that key slots are formed or grouting is performed between dam sections of the concrete gravity dam so as to combine slide resistance; by introducing a plurality of reasonable assumption and unbalanced force transfer concepts, the statically indeterminate problem of combined anti-sliding stability of multiple dam sections along a dam foundation surface is converted into a statically determinate problem; on the basis of solving out the independent anti-sliding safety factor of the dam sections, the transfer of unbalanced forces of adjacent dam sections on a river valley side is considered, circulation calculation is performed, and the overall stability safety factor of combined slide resistance of multiple dam sections, the sequence of sequentially achieving limit balance by each dam section and the local stability safety factor of the dam sections are solved out. The method has the characteristics of easiness for realization of programming, reasonable calculation result and the like, and is convenient in popularization and application in practical engineering.

The invention relates to the field of nuclear radiation safety and particularly relates to a pressurized water reactor nuclear power plant loss of coolant accident radioactive source term evaluation method. The method comprises the following steps: (1) based on reactor equilibrium cycle life end core burden and the release share of radionuclides from the core to a containment atmosphere, the initial radioactivity of radionuclides released to the containment atmosphere by the reactor core is calculated; (2) the radionuclides are divided to three types according to decay types, and according tothe initial value of radionuclides in the containment atmosphere and a generation term and a subduction term during migration and release processes of the radionuclides in the containment, the radioactivity of each radionuclide in the containment atmosphere at different time is classified and calculated; and (3) according to the leakage rate of the containment and the radioactivity of the radionuclides in the containment atmosphere obtain in the second step, the radioactivity of the radionuclides released to the environment is subjected to integral calculation. The calculation method providedin the invention considers a complete nuclide decay chain, and the method is scientific and reasonable and strong in generality.

The invention discloses a novel converting station stationing method. The method includes the steps of firstly, using minimum investment and operation cost as a target function, and using an outer point method to build a fitness function of a converting station; secondly, predicting total load P and the requirements for converting station capacity-load ratio r of a planning area according to level year load of the planning area, and determining level year converting station total capacity S required by the planning area; thirdly, determining number n of to-be-built converting stations according to forming requirements for saturation year converting station total capacity of local power departments and after level year converting station total capacity is determined; fourthly, building solution space for transverse coordinates, vertical coordinates and capacity of an address of each to-be-built converting station; fifthly, using DE (differential evolution) algorithm to solve transverse coordinates, vertical coordinates and capacity of the address of each to-be-built converting station, and outputting results; and sixthly, for boundary stations in areas in which no stations can be built, adding a variable step size motion vector to the coordinate direction of the station addresses to change location of the stations so as to allow the boundary stations to be located in areas in which stations can be built.

The invention discloses an annular convex slope stability evaluation method based on a simplified Bishop method, and the method comprises the following steps: dividing an annular convex slope into a plurality of annular strip blocks, and obtaining the gravity Wi and a sliding surface area A1i of each annular strip block; stretching the symmetrical axis of the annular convex slope in any direction to form a section, enabling each annular strip block to form a section on the section, and obtaining the section area A2i and the sliding face inclination angle theta i of each annular strip block on the section; AND iteratively calculating the slope safety factor Fs through the following formula. The contribution of the axial tension of each annular strip block of the annular convex slope to the sliding force is considered; a new assumption is introduced to the simplified Bishop method for improvement, the improved simplified Bishop method can be used for evaluating the stability of the annular convex slope, the calculation process is simple, and a method with a more reasonable calculation result is provided for the stability evaluation of the annular convex slope.

The invention discloses a method for testing a maximum dry density of super grain size rough granule soil. The method comprises the following steps of: grouping granule grain sizes of a test sample at first; calculating representative grain sizes of a super grain size granule group and a non-super grain size granule group according to a mass weighing averaging method; determining a ratio of a volume of a gap between the super grain size granule and the non-super grain size granule to a volume of a super grain size granule entity, namely a super grain size granule porosity ratio, according to an established planar analysis model stacked by spheres having two grain sizes and an introduced space correction coefficient; according to a gross volume density of the super grain size granule, the mass percentage of the super grain size granule and the maximum dry density of the test sample free of the super grain size granule, the maximum dry density of the super grain size rough granule soil can be obtained. The method is definite in theory and easy in operation; the tested maximum dry density is more accurate; and more reliable data basis can be provided for engineering construction.

The invention discloses a mathematical model calculation method and system, comprising a data input step, a model retrieval step, a model setting step, a model solving step and a result display step.As the above technical scheme is adopted, the invention has the following advantages compared with the prior art: (1) convenience and efficiency: the cloud computing architecture is adopted, the useronly needs to log in a client during calculating, the solution calculation is completed by a cloud server, and the calculation is convenient and efficient; (2) accuracy: a model database is established, the parameter selection and mesh division of a computational model have data reference, and the reliability of the computational result is significantly improved; (3) ease of use: modeling and calculation are separated, big data thinking is used to check modeling, solution, and data analysis, so that ordinary users can also calculate the reasonable calculation result, and the access threshold of model solution is reduced. (4) preciseness: pre-analysis and big data analysis make the post-processing of the calculation result more efficient and precise.

The invention discloses a double-hinge control surface hinge moment derivative estimation method, which relates to the aircraft aerodynamic characteristics estimation technology. The method is used for estimating double-hinge control surface hinge moment, separately calculating derivatives of hinge moments of front and back control surfaces with sideslip angle / angle of incidence and derivatives of the hinge moments with deflection angles of control surfaces through a single hinge estimation method, supposing a compensation ratio parameter according to a back control surface characteristic section parameter, calculating out a new hinge shaft position, moving the new hinge shaft position backward to obtain a new compensation ratio parameter, obtaining nose allowance of the back control surface, and calculating out the derivative of deflection angle of control surface of the front control surface and the derivative of deflection angle of control surface of the back control surface. The double-hinge control surface hinge moment derivative estimation method, provided by the invention, can perform derivative estimation on double-hinge control surface hinge moment, has the advantages of rational deduction process and clear principles, is suitable for double-hinge control surface hinge moment derivative estimation, and obtains rational and accurate calculation result quickly.

The invention discloses a method for calculating the sliding resistance of anchored piles. The method not only can be used for design calculation of a single row of anchored piles to obtain the smallest sliding resistance and the optimal pipe arrangement positions, but also can be used for optimization design calculation of multiple (double) rows of piles. An engineering project comparison result shows that the array matrix method is more scientific compared with a traditional method. When the array matrix method is combined with the finite element method to be applied to major landslide control engineering, a calculation result is more reliable and reasonable.

The invention discloses a new energy station energy storage configuration calculation method and system. The method comprises the steps: designing a standardized supply curve for different new energy installation scales, i.e., configuring a new energy station planned output curve after energy storage, and building a supply curve deviation degree index. By weighing the energy storage investment cost and the supply curve deviation cost, a new energy station energy storage configuration optimization model is established, the model can calculate the optimal capacity ratio between the new energy and the stored energy under the condition of the existing new energy installation scale and the load level of the power system, and on the premise of ensuring the energy storage investment economy, the peak regulation pressure of the new energy on the power system is reduced, and the new energy consumption is promoted.

The invention discloses a search matching method, device and system. The search matching method comprises the following steps: acquiring keywords submitted by a user terminal, wherein the keywords comprise product models and / or brand information; matching relevant price list information and an initial weight value thereof according to the acquired product models and brand information and respectively calculating product model weight values and brand information weight values in all price lists; calculating product information weight values in all the price lists; according to the obtained product information weight values, calculating final weight values of all the price lists; according to the final weight values of all the acquired price lists, sorting the price lists, and returning and displaying a sorting result to the user terminal. The search matching device and system are configured and realized based on the method. According to the method, the device and the system, the search matching according with the requirements of users more comprehensively can be achieved, so that the accuracy of the search matching is provided.

The invention discloses a group tensile force action spherical crown type slope stability evaluation method based on Janbu method. The method comprises the following steps: dividing a spherical crown type slope into a plurality of annular strip blocks, and obtaining the gravity Wi and the sliding surface area A1i of each annular strip block; stretching the spherical crown type slope in any direction in the symmetry axis direction to form a section, each annular strip block forming a section on the section, and obtaining the section area A2i and the sliding face inclination angle [theta]i of each annular strip block on the section; iteratively calculating the slope safety factor Fs through the following formula; introducing new assumptions into the Janbu method to improve the arch effect of the spherical crown type side slope; meanwhile, adding the group tensile force into the formula. The improved Janbu method can be used for evaluating the stability of the group tensile force acting spherical crown type side slope, the calculation process is simple, and a method with a more reasonable calculation result is provided for the stability evaluation of the group tensile force acting spherical crown type side slope.

The invention provides a method for determining the design wave height of a typhoon-affected sea area based on marine environmental parameters, and the method comprises the steps: combining a cumulative distribution function family with a composite extreme value distribution function through employing a combination function class method, and constructing a model of the design wave height h (x) ofthe typhoon-affected sea area. The designed wave height mode directly reflects the influence of typhoon frequency on marine environment elements, and statistical characteristics of marine environmentdesign parameters under extreme sea conditions can be described more completely. And meanwhile, when the random variable X is greater than a certain fixed value, the new model can better describe thepeak of the data, and the situation that the tail of the density function quickly tends to 0 does not occur, i.e., the tail data can be fully fitted. Therefore, errors caused by insufficient tail fitting of the extreme value distribution function can be reduced; in addition, under the condition that data information is short or missing exists, the recurrence level calculated through the method still has certain stability, and meanwhile, the Poisson-Gumbel-Pareto model can be directly applied to engineering practice.

The invention discloses a well drilling analysis method. The well drilling analysis method comprises the steps that S100, establishing a finite element model based on drilling speed-drilling tooth-stratum drilling simulation; S200, solving and analyzing the finite element model by adopting a display integral algorithm to obtain bit pressure and torque borne by the drill teeth at the correspondingrock breaking speed; and S300, giving the rock breaking speed matched with the drilling tool combination used in the drilling site or the drilling tool combination matched with the rock breaking speedexpected to be achieved in the drilling site according to the bit pressure and torque borne by the drilling teeth at the corresponding rock breaking speed. According to the drilling analysis method,the bit pressure and the torque required for reaching a certain mechanical drilling speed drill tooth are directly studied; the real-time drilling rock breaking process in the drilling engineering canbe more truly simulated, the on-site actual drilling working condition can be more accurately reflected, then a more reasonable calculation result is obtained, a reference can be provided for drilling acceleration evaluation, and a reference basis is provided for solving the problems of drilling design, drilling tool combination optimization, drilling parameter optimization and the like in the on-site actual drilling engineering.

The invention discloses a group tension action spherical crown type slope stability evaluation method based on a transfer coefficient method, and the method comprises the following steps: dividing a spherical crown type slope into a plurality of annular strip blocks, and obtaining Wi and a sliding surface area A1i of each annular strip block; stretching the spherical crown type slope in any direction in the symmetry axis direction to form a section, each annular strip block forming a section on the section, and obtaining the section area A2i and the sliding face inclination angle [theta]i of each annular strip block on the section; iteratively calculating the slope safety factor Fs through the following formula; introducing new assumptions to improve the transfer coefficient method by considering the arch effect of the spherical crown type side slope; meanwhile, adding the group tension into the formula. The improved transfer coefficient method can be used for evaluating the stability of the group tension acting spherical crown type slope, the calculation process is simple, and a method with a more reasonable calculation result is provided for evaluating the stability of the group tension acting spherical crown type slope.

The invention discloses a calculation method applicable to the sliding resistance of anchor piles. The calculation method applicable to the sliding resistance of the anchor piles disclosed by the invention can be used for design calculation of a single row of anchor piles, such that the minimum sliding resistance and the best pile arrangement position can be obtained; and the calculation method also can be used for optimal design calculation of multiple (double) rows of piles. Due to engineering project comparison, the result shows that a matrix array method is more scientific than the traditional method; and the calculation result is more reliable and reasonable in a major landslide prevention and treatment engineering if the matrix array method is combined with a finite element method.

The invention discloses a method for processing non-convergence tide data on the basis of regulation on a reactive power and belongs to the technical field of control of a power system. According to the invention, an influence index of tide convergence is raised on the basis of a tangent vector and according to the index, a key node influencing the tide convergence is found; by adding reactive power compensation to the key node, a reactive power compensation quantity of the key node is shared in each piece of reactive compensation equipment according to sensitivity information. The method solves the problem of regulating non-convergence tide data into reasonable convergence tide data. The method is helpful for researchers to understand the non-convergence reasons of tide data and provides a powerful means for daily tide data regulation and maintenance work of engineers.

The invention belongs to the technical field of aerodynamics, and discloses a component aerodynamic load correction method based on wind tunnel test. The method comprises the following steps of: 1, obtaining a total aerodynamic load test value A of a projectile according to a force measurement wind tunnel test; 2, calculating the fluid number of the projectile to obtain the total aerodynamic load calculation value A' of the projectile and the aerodynamic load calculation values A'1, A'2,..., A'n of all components; 3, calculating the difference Delta between the total aerodynamic load test value and the calculation value of the projectile; 4, respectively calculating a proportionality coefficient ki of the aerodynamic load calculation value of each component and the total aerodynamic load calculation value of the projectile, wherein i = 1, 2,... n; 5, according to the difference between the total aerodynamic load test value and the total aerodynamic load calculation value of the projectile and the proportionality coefficient ki between the aerodynamic load calculation value of each component and the total aerodynamic load calculation value of the projectile, calculating the aerodynamic load correction Deltai of each component; and 6, based on the aerodynamic load correction amount of each component and the aerodynamic load calculation value of each component, obtaining an aerodynamic load correction value of each component.

The invention discloses a method for self-adaptively evaluating an anti-shake function of a mobile phone, which comprises the following steps of: 1, fixing the position of the mobile phone, starting avibration table, and shooting an image when the anti-shake function is started or closed; 2, automatically judging a to-be-used evaluation strategy according to the shot image; 3, calculating mobilephone anti-shake function evaluation parameters based on the image blur amount and the image target displacement amount; and 4, generating a mobile phone anti-shake function evaluation report according to a calculation result. According to the method, the anti-shake functions of various types of mobile phones with anti-shake functions are objectively evaluated in a self-adaptive manner; accordingto the mobile phone anti-shake function evaluation method and device, the defect that an existing mobile phone anti-shake evaluation process is single is overcome, the actual evaluation requirement ismet, the accuracy and effectiveness of the mobile phone anti-shake function evaluation result are improved, the evaluation result is more reasonable and more accurate, and transverse comparison of anti-shake functions between mobile phones is easier to achieve.

The invention discloses a waterlogging storage water surface rate partition processing method based on urban waterlogging basic information. The method comprises the steps that basic information suchas rainfall runoff coefficients, main duration rainfall statistical results and current water surface rates, input by a user, of a current region is acquired; obtaining a designed flood drainage flowaccording to the basic information and the rainfall flood process control information; obtaining a designed regulation and storage water depth according to the designed drainage flow and the basic information; obtaining a corresponding designed rainstorm duration according to the designed flood drainage flow or the designed regulation and storage water depth; designing rainstorm duration accordingto the designed flood drainage flow to obtain partition indexes; zoning threshold delimiting is conducted on the waterlogging storage water surface rate of the current region through zoning indexes,and a region division result is obtained; and outputing results of zone partition. According to the processing method, the calculation process can be simplified, the workload of multi-scenario adjustment is reduced, and the operability is high; and the design scheme of the urban flood drainage system can be optimized according to local conditions in combination with the partitioning result of theurban water surface rate.

The invention belongs to the technical field of chemical analysis, and provides a method for accurately determining the content of hydrochloric acid in an iron chloride corrosion solution. The method comprises the following steps: 1, diluting the iron chloride corrosion solution by distilled water to obtain a diluted iron chloride corrosion solution; 2, sucking up the diluted solution to obtain a sucked diluted iron chloride corrosion solution; 3, sequentially adding an ascorbic acid solution and distilled water to the sucked diluted solution to obtain a diluted iron chloride corrosion solution with iron ions reduced into Fe<2+>; 4, adding 10 drops of a bromocresol green-methyl red indicator to the diluted iron chloride corrosion solution with iron ions reduced into Fe<2+> by using a dropper, and titrating with a sodium hydroxide standard solution until the solution is just green in order to obtain a completely titrated diluted iron chloride corrosion solution; 5, repeating step 2 to step 4 by using distilled water to substitute the diluted iron chloride corrosion solution as a blank experiment; and 6, obtaining the content of hydrochloric acid in the solution.

The invention discloses a method for estimating and calculating abrasion loss of a cutter of a shield tunneling machine, which comprises the following calculation steps and methods: 1, calculating each basic physical quantity related to the cutting behavior of a cutter according to known data; 2, on the basis of each physical quantity obtained by calculation, establishing a corresponding relational expression between a shield tunneling geological parameter, a cutter structure parameter and a construction operation parameter and friction work; and 3, establishing a relative relational expression between the friction work and the cutter abrasion loss. The abrasion loss of cutters with different tunneling distances and different installation radiuses is obtained. According to the method, the accurate shield cutter abrasion loss estimation calculation method is established, the influence of three types of parameters including the excavation geology, the cutter structure and the construction operation on the cutter abrasion loss is comprehensively reflected, the parameters are easy to measure, and data processing is simple. The problem that the abrasion degree of a cutter needs to be judged and the service life of a cutter needs to be predicted in shield construction is solved; meanwhile, a theoretical basis is provided for optimizing the cutter structure, reasonably regulating and controlling tunneling parameters and prolonging the service life of the cutter.

The invention discloses a simulation method of a shield tunnel joint structure, which is characterized by comprising the steps of: (1) setting joint units: dispersing joint contact surfaces into a plurality of nodes, wherein the nodes are mutually connected by the joint units of simulation springs, circumferential upper joint units have a plurality of layers to respectively simulate force transmission liners, bolts and gaskets in real joints, and the types of the joint units at the same layer are the same; (2) setting the rigidity, the boundary condition and the joint initial displacement Delta1 of initial springs; (3) applying load; (4) examining a first joint unit; (5) setting the normal rigidity of the spring according to the type of the joint unit; (6) judging whether all the joint units are set, if so, starting the next step (7), and if not, examining the next joint unit and retuning to the step (5); (7) counting the real displacement delta 2 of the joints; and (8) comparing the delta1 with the delta2, if the difference between the two is in the allowed range tol, completing the account, and counting the deformation of the joints in the tunnel, and if the difference between the two is over the allowed range, counting the imposed load of the tunnel according to the delta2, and returning back to the step (3) to reapply the load. Based on the structure characteristics of theliner structure joints, the method builds the mechanical model of the liner structure joints, dynamically adjusts spring parameters in the process of counting according to the obtained node spring stress or the normal displacement, and uses joint models to count the whole ring liner structure. The method can consider the performance of the circumferential joints and the longitudinal joints of theliners, count the inner force and the deformation of the duct pieces and the joints of the liners, and more exactly show the status of deformation and force of the duct pieces.

The invention discloses a mobile phone anti-shake function evaluation method based on image fuzziness. The method comprises steps of fixing the position of a mobile phone position, shooting static images, then, starting the vibrating table, shooting a group of images when the anti-shake function of the mobile phone is started and closed; then, calculating image fuzziness based on a deep learning method, carrying out feature extraction by using a deep learning deblurring network, calculating a Wasserstein distance of a feature vector to obtain fuzziness amounts of the two groups of images, andfinally, generating an image fuzziness evaluation result according to the fuzziness amounts. According to the invention, the whole image can participate in ambiguity calculation; compared with an existing evaluation method adopting a local image for calculation, the method has the advantages that the influence of different areas on the calculation result is avoided, the calculation is more reasonable, the result is more accurate, and meanwhile, the calculated ambiguity makes detailed and clear division on the anti-shake function of the mobile phone, so that the objectivity of the evaluation result is improved, and a user can understand and grasp the evaluation result more easily.

The invention relates to the adaptive adjusting method and system of a machine learning algorithm. The method comprises the following steps of through analyzing the machine learning algorithm, acquiring a controllable parameter used for controlling calculation time, and according to the actual calculation time of the machine learning algorithm under each specific value of the controllable parameter, establishing the quantitative model library of the calculation time of the machine learning algorithm; and according to the complexity of input data in each time window, carrying out coarse grain adjusting on the machine learning algorithm, giving the complexity range of an algorithm model, carrying out quantitative description on the input data according to the machine learning algorithm, determining the specific value of the controllable parameter in the quantitative model library through combining a given time limit, and applying the specific value to the machine learning algorithm so asto realize the adaptive adjusting of the machine learning algorithm. In the invention, the machine learning algorithm can adapt to the on-line application scene of streaming data under a limited calculating resource condition, and a reasonable calculating result can be given under a given time limit.