CN117371184A - Hydration reaction structure strength change simulation method and system for large concrete - Google Patents
Hydration reaction structure strength change simulation method and system for large concrete Download PDFInfo
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Abstract
The invention provides a hydration reaction structural strength change simulation method and system for large concrete, which are used for acquiring a digital model of each concrete mould, acquiring a stress value on the digital model of each concrete mould, acquiring an analog motion track of the digital model of each concrete mould and acquiring a contact surface of the digital model of each concrete mould after the analog motion track; in the simulated motion trail, calculating a hidden space trail sequence; and the simulated motion trail is reversely optimized, so that the stability, the anti-seismic performance and the reliability of the structure can be improved, the prediction precision of the model is optimized, and the effective optimization of the performance of the concrete structure is realized.
Description
Technical Field
The invention belongs to the field of data optimization, and particularly relates to a hydration reaction structure strength change simulation method and system for large-scale concrete.
Background
Concrete is a material widely used in construction engineering, and the mechanical properties and durability of the concrete determine the safety and service life of the structure to a great extent. The mechanical properties of concrete are mainly related to hydration reaction, which is the process of forming a gel by the chemical reaction of water in the concrete and cement colloid. During the hydration reaction, the cement particles gradually dissolve and combine with hydroxide ions in the water to form gels, which fill the pores in the concrete and give it a certain strength. At present, in order to study the hydration reaction process of concrete and the influence of the hydration reaction process on the structural strength of the concrete, an experimental method is often adopted to obtain relevant data. However, the experimental methods generally require a lot of time and resources, and the detailed change of hydration reaction cannot be intuitively observed. Therefore, the development of a simulation-based method and system for simulating the change of the hydration reaction structural strength of concrete has important significance. In recent years, with the continuous development of computer science and numerical simulation technology, the use of computer simulation to predict the process and structural strength change of concrete hydration reaction has become a research hotspot. The simulation method based on numerical simulation can simulate the fine process of hydration reaction in the concrete material, and predicts the strength change rule of the concrete by modeling the formation and distribution of hydration products.
Disclosure of Invention
The invention aims to provide a hydration reaction structural strength change simulation method and system for large concrete, which are used for solving one or more technical problems in the prior art and at least providing a beneficial selection or creation condition.
The invention provides a hydration reaction structural strength change simulation method and system for large concrete, which are used for acquiring a digital model of each concrete mould, acquiring a stress value on the digital model of each concrete mould, acquiring an analog motion track of the digital model of each concrete mould and acquiring a contact surface of the digital model of each concrete mould after the analog motion track; in the simulated motion trail, calculating a hidden space trail sequence; and (5) reversely optimizing the simulated motion trail.
In order to achieve the above object, according to an aspect of the present invention, there is provided a hydration reaction structural strength change simulation method of a large-scale concrete, the method comprising the steps of:
acquiring a digital model of each concrete mould, acquiring a stress value on the digital model of each concrete mould, acquiring an analog motion trail of the digital model of each concrete mould, and acquiring a contact surface of the digital model of each concrete mould after the analog motion trail;
in the simulated motion trail, calculating a hidden space trail sequence;
and (5) reversely optimizing the simulated motion trail.
Further, the simulated motion track comprises coordinates of each moment and speeds and angles corresponding to the coordinates of each moment in the displacement process of the concrete mould, the speeds corresponding to the coordinates of each moment represent instantaneous speeds corresponding to the coordinates of the moment in the simulated motion track, and the angles corresponding to the coordinates of each moment represent directions of the instantaneous speeds corresponding to the coordinates of the moment.
Further, the stress component of each concrete mold on the contact surface is obtained: the method comprises the steps of obtaining a contact surface of each concrete mould, which is contacted after the contact surface is subjected to an analog motion track, through digital simulation, and recording stress components of each concrete mould on the contact surface, which are obtained through digital simulation, wherein the stress components are an array formed by stress components of each concrete mould on each point of the contact surface.
Further, the digitized model of each concrete mold is the data type of the point cloud data.
Further, in the simulated motion trail, the method for calculating the hidden space trail sequence comprises the following steps:
for the speed and angle corresponding to the coordinates of each moment, calculating the preposed speed-direction ratio of the speed and angle corresponding to the coordinates of each moment relative to the speed and angle corresponding to the coordinates of each moment before the moment, and calculating the postposed speed-direction ratio of the speed and angle corresponding to the coordinates of each moment relative to the speed and angle corresponding to the coordinates of each moment after the moment;
calculating hidden space velocity direction ratios corresponding to the coordinates at the moment according to the front velocity direction ratio and the rear velocity direction ratio corresponding to the coordinates at the moment, and forming a hidden space track sequence according to the hidden space velocity direction ratios corresponding to the coordinates at the moment;
the method for calculating the front speed-to-direction ratio corresponding to the coordinates at one moment comprises the following steps: if the coordinate at the moment is the first coordinate in the simulated motion track, the prepositive speed-direction ratio corresponding to the coordinate at the moment is 1; if the coordinate at the moment is not the first coordinate in the simulated motion track, the corresponding speed and angle of the coordinate at the moment and the corresponding speed and angle of the coordinate at each moment before the moment are respectively combined according to the moment, and the numerical value of the probability of comparing the combination of the speed and the angle corresponding to the coordinate at the moment with the combination of the speed and the angle corresponding to the coordinate at each moment before the moment is calculated as the numerical value of the prepositive speed-direction ratio corresponding to the coordinate at the moment; the combination of the corresponding speed and angle can be specifically: in some embodiments, the values of the speed and the angles may be multiplied by dimensionality and normalization, respectively; in some embodiments, the value of the velocity may be v, the angle a, the sine value corresponding to the angle a, sin (a), and the cosine value corresponding to the angle a, cos (a); the method has the advantages that the data characteristics of the instantaneous speed in the sine direction displacement and the data characteristics of the instantaneous speed in the cosine direction displacement are balanced, so that the data characteristics of the displacement and the direction data at each moment after being combined cannot disappear on the prolonging of time because the sine function and the cosine function are continuous in period, and the damage probability of the digital model of each concrete mould in the moving process can be detected;
the method for calculating the post speed-to-direction ratio corresponding to the coordinates at one moment comprises the following steps: if the coordinate at the moment is the last coordinate in the simulated motion track, the postposition speed-direction ratio corresponding to the coordinate at the moment is 0; if the coordinates at the one time are not the last coordinates in the simulated motion track, the corresponding speed and angle of the coordinates at the one time and the corresponding speed and angle of the coordinates at each time after the one time are respectively combined according to the time, and the numerical value of the probability of comparing the combination of the speed and angle of the coordinates at each time after the one time with the combination of the speed and angle of the coordinates at the one time is calculated as the numerical value of the post speed-direction ratio corresponding to the coordinates at the one time.
Further, according to the front speed-direction ratio and the rear speed-direction ratio corresponding to the coordinates at the moment, the method for calculating the hidden space speed-direction ratio corresponding to the coordinates at the moment comprises the following steps: calculating hidden space velocity ratios corresponding to coordinates of one moment, calculating average distribution of prepositive velocity ratios corresponding to coordinates of each moment, calculating average distribution of postpositive velocity ratios corresponding to coordinates of each moment, calculating ratio of prepositive velocity ratios corresponding to coordinates of one moment relative to average distribution of prepositive velocity ratios, calculating ratio of postpositive velocity ratios corresponding to coordinates of one moment relative to average distribution of postpositive velocity ratios, and combining ratio of prepositive velocity ratios corresponding to coordinates of one moment relative to average distribution of prepositive velocity ratios and ratio of postpositive velocity ratios corresponding to coordinates of one moment as numerical value of hidden space velocity ratios corresponding to coordinates of one moment. In the process of reversely optimizing the simulated motion trail, the hidden space velocity ratio corresponding to the coordinates at the moment can be used for helping researchers to better understand the hydration mechanism and the strength change rule of the concrete, and the hidden space velocity ratio corresponding to the coordinates at the moment is calculated to be beneficial to improving the accuracy and the efficiency of the concrete structure design and reducing the experiment cost and the time consumption. Preferably, the means of bonding include, but are not limited to: the values are multiplied after being subjected to dimensionalization and normalization. The average distribution may be a numerical value including, but not limited to, an arithmetic average, a mode, a median, or an average level that can be used to represent a probability distribution obtained by statistics, sampling, or the like, and it is preferable that the average distribution be an arithmetic average.
Further, according to the hidden space track sequence, the simulated motion track is reversely optimized, specifically:
the contact surface is the contact surface between the digital models of two different concrete molds;
the digital model of each concrete mould consists of data of a plurality of points, each point in the digital model of the concrete mould has corresponding coordinates and stress values, the points where the digital models of two different concrete moulds are contacted with each other on a contact surface are called contact points, and the points where the contact points on the digital model of one concrete mould are contacted with the digital models of the other concrete moulds are called contact corresponding points of the contact points;
calculating the divergence of the probability distribution of the stress values of the contact points of the digital model of one concrete mould falling on the contact surface relative to the probability distribution of the stress values of the contact corresponding points of the digital model of the other concrete mould falling on the contact surface as the hidden space velocity node ratio when the digital model of the one concrete mould is contacted with the digital model of the other concrete mould;
calculating hidden space optimization node rate according to hidden space velocity node rate: when the number of the inter-speed directional node rates is smaller than 1 and not equal to 0, the hidden space optimization node rate is equal to the difference obtained by subtracting the numerical value of the inter-speed directional node rate from 1; when the number of the inter-speed directional node rates is equal to 1, the hidden space optimization node rate is equal to the numerical value of the inter-speed directional node rate; when the value of the inter-speed directional node rate is greater than 1, the hidden space optimization node rate is equal to one of the differences of the numerical value of the inter-speed directional node rate minus 1 (the numerical value obtained by subtracting 1 from the numerical value of the inter-speed directional node rate is taken as a denominator and 1 is taken as a numerator is taken as the hidden space optimization node rate);
when the digital models of the concrete mould collide with each other, the speeds corresponding to all coordinate points in the original simulated motion track are obtained, and the hidden space optimization node rate is used as the weight of the speeds corresponding to all coordinate points in the original simulated motion track to be optimized.
According to the method for reversely optimizing the simulated motion track according to the hidden space track sequence, the hidden space velocity direction section rate can be determined according to the probability distribution divergence of the stress value of the contact point by reversely optimizing the simulated motion track, and the corresponding velocity of the coordinate point in the simulated motion track can be adjusted by calculating the hidden space optimization section rate, so that the motion track of the concrete structure in the stress state is optimized, the stability and the earthquake resistance of the concrete structure are improved, the stress concentration in the stress process of the structure is reduced, and the risk of structural damage is reduced. The reverse optimization method can be used for analyzing and optimizing stress components born by each concrete mold on the contact surface, so that the behavior of the concrete mold in the simulated motion trail can be predicted more accurately. By adjusting the speed weight, the corresponding speed of each coordinate point in the simulated motion track can be changed, so that the time and speed of motion between each coordinate point in the simulated motion track are changed, the accuracy and reliability of the model can be improved, and the design and optimization of the concrete structure can be guided better. Furthermore, by the reverse optimization method, the simulated motion track can be adjusted and optimized according to actual requirements and design targets, and the calculation of the hidden space optimization section rate can be flexibly adjusted according to specific conditions, so that the speed of each coordinate point in the motion process is reasonably controlled, the motion mode of the concrete mold is changed, the stress distribution of the structure is adjusted, and the mechanical property and the durability of the structure are optimized.
Therefore, the method for reversely optimizing the simulated motion track according to the hidden space track sequence has important significance in the design and analysis of the concrete structure. The method can improve the stability, the anti-seismic performance and the reliability of the structure, optimize the prediction precision of the model and realize the effective optimization of the performance of the concrete structure.
The invention also provides a hydration reaction structural strength change simulation system of the large concrete, which comprises: the method comprises the steps of a method for simulating the hydration reaction structural strength change of a large concrete, wherein the hydration reaction structural strength change simulation system of the large concrete can be operated in a computing device such as a desktop computer, a notebook computer, a palm computer and a cloud data center, and the operable systems can comprise, but are not limited to, a processor, a memory and a server cluster, and the processor executes the computer program to operate in the following units:
the data acquisition unit is used for acquiring the digital model of each concrete mould, acquiring the stress value on the digital model of each concrete mould, acquiring the analog motion trail of the digital model of each concrete mould and acquiring the contact surface of the digital model of each concrete mould after the analog motion trail;
the hidden space track sequence calculation unit is used for calculating a hidden space track sequence in the simulated motion track;
and the optimizing unit is used for reversely optimizing the simulated motion trail.
The beneficial effects of the invention are as follows: the invention provides a hydration reaction structural strength change simulation method and system for large concrete, which are used for acquiring a digital model of each concrete mould, acquiring a stress value on the digital model of each concrete mould, acquiring an analog motion track of the digital model of each concrete mould and acquiring a contact surface of the digital model of each concrete mould after the analog motion track; in the simulated motion trail, calculating a hidden space trail sequence; and the simulated motion trail is reversely optimized, so that the stability, the anti-seismic performance and the reliability of the structure can be improved, the prediction precision of the model is optimized, and the effective optimization of the performance of the concrete structure is realized.
Drawings
The above and other features of the present invention will become more apparent from the detailed description of the embodiments thereof given in conjunction with the accompanying drawings, in which like reference characters designate like or similar elements, and it is apparent that the drawings in the following description are merely some examples of the present invention, and other drawings may be obtained from these drawings without inventive effort to those of ordinary skill in the art, in which:
FIG. 1 is a flow chart of a method for simulating the strength change of a hydration reaction structure of large-scale concrete;
FIG. 2 is a system structural diagram of a hydration reaction structural strength change simulation system for large-scale concrete.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present invention. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Referring to fig. 1, a flow chart of a method for simulating the strength change of a hydration reaction structure of a large concrete according to the present invention is shown, and a method and a system for simulating the strength change of a hydration reaction structure of a large concrete according to an embodiment of the present invention are described below with reference to fig. 1.
The invention provides a hydration reaction structure strength change simulation method of large concrete, which specifically comprises the following steps:
acquiring a digital model of each concrete mould, acquiring a stress value on the digital model of each concrete mould, acquiring an analog motion trail of the digital model of each concrete mould, and acquiring a contact surface of the digital model of each concrete mould after the analog motion trail;
in the simulated motion trail, calculating a hidden space trail sequence;
and (5) reversely optimizing the simulated motion trail.
Further, the simulated motion track comprises coordinates of each moment and speeds and angles corresponding to the coordinates of each moment in the displacement process of the concrete mould, the speeds corresponding to the coordinates of each moment represent instantaneous speeds corresponding to the coordinates of the moment in the simulated motion track, and the angles corresponding to the coordinates of each moment represent directions of the instantaneous speeds corresponding to the coordinates of the moment.
Further, the stress component of each concrete mold on the contact surface is obtained: the method comprises the steps of obtaining a contact surface of each concrete mold, which is contacted after the concrete mold passes through an analog motion track, through digital simulation, and recording stress components of each concrete mold on the contact surface, which are obtained through digital simulation, wherein the stress components are an array formed by stress components of each concrete mold on each point of the contact surface, and the stress components are used for calculating, calibrating and/or verifying stress values on a digital model of each concrete mold. In some embodiments, the array of components of the stress at each point of the contact surface may be used to correct the stress values on the digitized model of each concrete mold, and the digitized model may be subjected to stress analysis by the Abaqus software to obtain stress distribution, and the stress values on the digitized model of each concrete mold may be obtained according to the stress distribution.
Further, the digitized model of each concrete mold is the data type of the point cloud data.
Further, in the simulated motion trail, the method for calculating the hidden space trail sequence comprises the following steps:
for the speed and angle corresponding to the coordinates of each moment, calculating the preposed speed-direction ratio of the speed and angle corresponding to the coordinates of each moment relative to the speed and angle corresponding to the coordinates of each moment before the moment, and calculating the postposed speed-direction ratio of the speed and angle corresponding to the coordinates of each moment relative to the speed and angle corresponding to the coordinates of each moment after the moment;
calculating hidden space velocity direction ratios corresponding to the coordinates at the moment according to the front velocity direction ratio and the rear velocity direction ratio corresponding to the coordinates at the moment, and forming a hidden space track sequence according to the hidden space velocity direction ratios corresponding to the coordinates at the moment;
the method for calculating the front speed-to-direction ratio corresponding to the coordinates at one moment comprises the following steps: if the coordinate at the moment is the first coordinate in the simulated motion track, the prepositive speed-direction ratio corresponding to the coordinate at the moment is 1; if the coordinate at the moment is not the first coordinate in the simulated motion track, the corresponding speed and angle of the coordinate at the moment and the corresponding speed and angle of the coordinate at each moment before the moment are respectively combined according to the moment, and the numerical value of the probability of comparing the combination of the speed and the angle corresponding to the coordinate at the moment with the combination of the speed and the angle corresponding to the coordinate at each moment before the moment is calculated as the numerical value of the prepositive speed-direction ratio corresponding to the coordinate at the moment; the combination of the corresponding speed and angle can be specifically:
in some embodiments, the values of the speed and the angles may be multiplied by dimensionality and normalization, respectively;
in some embodiments, the value of the speed may be v, the angle a, the sine value corresponding to the angle a is sin (a), the cosine value corresponding to the angle a is cos (a), and the calculation method of the value r of the combination of the speed and the angle is as follows:
r＝[v*sin(a)+v*cos(a)]/2，
the formula can be obtained after simplification:
alternatively, the formula may also be, in some embodiments:
the method has the advantages that the data characteristics of the instantaneous speed in the sine direction displacement and the data characteristics of the instantaneous speed in the cosine direction displacement are balanced, so that the data characteristics of the displacement and the direction data at each moment after being combined cannot disappear on the prolonging of time because the sine function and the cosine function are continuous in period, and the damage probability of the digital model of each concrete mould in the moving process can be detected;
the method for calculating the post speed-to-direction ratio corresponding to the coordinates at one moment comprises the following steps: if the coordinate at the moment is the last coordinate in the simulated motion track, the postposition speed-direction ratio corresponding to the coordinate at the moment is 0; if the coordinates at the one time are not the last coordinates in the simulated motion track, the corresponding speed and angle of the coordinates at the one time and the corresponding speed and angle of the coordinates at each time after the one time are respectively combined according to the time, and the numerical value of the probability of comparing the combination of the speed and angle of the coordinates at each time after the one time with the combination of the speed and angle of the coordinates at the one time is calculated as the numerical value of the post speed-direction ratio corresponding to the coordinates at the one time.
Further, according to the front speed-direction ratio and the rear speed-direction ratio corresponding to the coordinates at the moment, the method for calculating the hidden space speed-direction ratio corresponding to the coordinates at the moment comprises the following steps: calculating hidden space velocity ratios corresponding to coordinates of one moment, calculating average distribution of prepositive velocity ratios corresponding to coordinates of each moment, calculating average distribution of postpositive velocity ratios corresponding to coordinates of each moment, calculating ratio of prepositive velocity ratios corresponding to coordinates of one moment relative to average distribution of prepositive velocity ratios, calculating ratio of postpositive velocity ratios corresponding to coordinates of one moment relative to average distribution of postpositive velocity ratios, and combining ratio of prepositive velocity ratios corresponding to coordinates of one moment relative to average distribution of prepositive velocity ratios and ratio of postpositive velocity ratios corresponding to coordinates of one moment as numerical value of hidden space velocity ratios corresponding to coordinates of one moment.
Preferably, the means of bonding include, but are not limited to: the values are multiplied after being subjected to dimensionalization and normalization.
The average distribution may be a numerical value including, but not limited to, an arithmetic average, a mode, a median, or an average level that can be used to represent a probability distribution obtained by statistics, sampling, or the like, and it is preferable that the average distribution be an arithmetic average.
Further, according to the hidden space track sequence, the simulated motion track is reversely optimized, specifically:
the contact surface is the contact surface between the digital models of two different concrete molds;
the digital model of each concrete mould consists of data of a plurality of points, each point in the digital model of the concrete mould has corresponding coordinates and stress values, the points where the digital models of two different concrete moulds are contacted with each other on a contact surface are called contact points, and the points where the contact points on the digital model of one concrete mould are contacted with the digital models of the other concrete moulds are called contact corresponding points of the contact points;
calculating the divergence of the probability distribution of the stress values of the contact points of the digital model of one concrete mould falling on the contact surface relative to the probability distribution of the stress values of the contact corresponding points of the digital model of the other concrete mould falling on the contact surface as the hidden space velocity node ratio when the digital model of the one concrete mould is contacted with the digital model of the other concrete mould; in some embodiments, a sequence of values of stress values of each contact point on the contact surface where the digitized model of the one concrete mold falls may be obtained as a first sequence, a sequence of values of stress values of a contact corresponding point on the contact surface where the digitized model of the other concrete mold falls may be obtained as a second sequence, and a KL divergence of the first sequence relative to the second sequence is calculated as a hidden space velocity ratio;
calculating hidden space optimization node rate according to hidden space velocity node rate: when the number of the inter-speed directional node rates is smaller than 1 and not equal to 0, the hidden space optimization node rate is equal to the difference obtained by subtracting the numerical value of the inter-speed directional node rate from 1; when the number of the inter-speed directional node rates is equal to 1, the hidden space optimization node rate is equal to the numerical value of the inter-speed directional node rate;
when the value of the inter-speed directional node rate is greater than 1, the hidden space optimization node rate is equal to one of the differences of the value of the inter-speed directional node rate minus 1: in some embodiments, the difference obtained by subtracting 1 from the value of the intermediate velocity direction node rate is taken as a denominator, and the value obtained by taking 1 as a numerator is taken as a hidden space optimization node rate; in some embodiments, the difference obtained by subtracting 1 from the value of the intermediate speed to the node ratio is denoted as b, the active function to be input is represented by F (), F (b) is obtained by inputting F () by b and is taken as a denominator, F (1) is obtained by inputting F (), the obtained value of F (1)/F (b) is taken as a hidden space optimization node ratio, and preferably, a sigmoid function or an exponential function is taken as an F () function;
when the digital models of the concrete molds collide with each other, in some embodiments, when the digital model of one concrete mold and the digital model of the other concrete mold collide with each other, and the number of the inter-velocity directional node ratios is not equal to 1 and not equal to 0, the collision situation can be detected or predicted by means including but not limited to a collision dynamics model, CAE finite element simulation and the like, so as to obtain the speed corresponding to each coordinate point in the original simulated motion track, and the hidden space optimization node ratio is used as the weight of the speed corresponding to each coordinate point in the original simulated motion track to optimize:
in some embodiments, the speed corresponding to each coordinate point in the original simulated motion track may be multiplied by the value of the hidden space optimization node ratio, so as to optimize the speed corresponding to each coordinate point in the simulated motion track, and meanwhile, the time and the speed of the motion between each coordinate point in the simulated motion track are also changed.
The hydration reaction structural strength change simulation system of the large concrete is operated in any computing equipment of a desktop computer, a notebook computer, a palm computer or a cloud data center, and the computing equipment comprises: a processor, a memory, and a computer program stored in and running on the memory, wherein the processor implements the steps of the hydration reaction structure strength variation simulation method of a large concrete when the computer program is executed, and the operable system can comprise, but is not limited to, a processor, a memory, and a server cluster.
The embodiment of the invention provides a system for simulating the change of the structural strength of hydration reaction of large concrete, as shown in fig. 2, which comprises: a processor, a memory, and a computer program stored in the memory and executable on the processor, the processor implementing the steps in an embodiment of the hydration reaction structural strength variation simulation method of a large concrete described above when the computer program is executed, the processor executing the computer program to be executed in a unit of the following system:
the data acquisition unit is used for acquiring the digital model of each concrete mould, acquiring the stress value on the digital model of each concrete mould, acquiring the analog motion trail of the digital model of each concrete mould and acquiring the contact surface of the digital model of each concrete mould after the analog motion trail;
the hidden space track sequence calculation unit is used for calculating a hidden space track sequence in the simulated motion track;
and the optimizing unit is used for reversely optimizing the simulated motion trail.
Preferably, all undefined variables in the present invention, if not explicitly defined, can be threshold set manually; preferably, for numerical calculation between unit different physical quantities, in order to better count the linear relation or probability relation of numerical distribution between different physical quantities, dimensionless processing and normalization processing can be performed to convert the numerical relation between different physical quantities so as to unify the numerical relation between different physical quantities.
The hydration reaction structure strength change simulation system of the large concrete can be operated in computing equipment such as a desktop computer, a notebook computer, a palm computer, a cloud data center and the like. The system for simulating the change of the hydration reaction structural strength of the large concrete comprises, but is not limited to, a processor and a memory. It will be understood by those skilled in the art that the example is merely an example of a method and a system for simulating the strength change of a hydration structure of a large concrete, and the method and the system for simulating the strength change of a hydration structure of a large concrete are not limited thereto, and may include more or fewer components than examples, or may combine some components, or different components, for example, the system for simulating the strength change of a hydration structure of a large concrete may further include an input/output device, a network access device, a bus, and the like.
The processor may be a central processing unit (Central Processing Unit, CPU), other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete component gate or transistor logic devices, discrete hardware components, or the like. The general processor can be a microprocessor or any conventional processor, and the processor is a control center of the hydration reaction structure strength change simulation system of the large concrete, and various interfaces and lines are used for connecting various subareas of the hydration reaction structure strength change simulation system of the whole large concrete.
The memory can be used for storing the computer program and/or the module, and the processor can realize various functions of the hydration reaction structural strength change simulation method and system of the large-scale concrete by running or executing the computer program and/or the module stored in the memory and calling the data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (Flash Card), at least one disk storage device, flash memory device, or other volatile solid-state storage device.
The invention provides a hydration reaction structural strength change simulation method and system for large concrete, which are characterized in that a digital model of each concrete mould is obtained, a stress value on the digital model of each concrete mould is obtained, an analog motion track of the digital model of each concrete mould is obtained, a contact surface of the digital model of each concrete mould after the analog motion track is obtained, and stress components received by each concrete mould on the contact surface can be obtained to calibrate the stress value; in the simulated motion trail, calculating a hidden space trail sequence; and the simulated motion trail is reversely optimized, so that the stability, the anti-seismic performance and the reliability of the structure can be improved, the prediction precision of the model is optimized, and the effective optimization of the performance of the concrete structure is realized.
Although the present invention has been described in considerable detail and with particularity with respect to several described embodiments, it is not intended to be limited to any such detail or embodiment or any particular embodiment so as to effectively cover the intended scope of the invention. Furthermore, the foregoing description of the invention has been presented in its embodiments contemplated by the inventors for the purpose of providing a useful description, and for the purposes of providing a non-essential modification of the invention that may not be presently contemplated, may represent an equivalent modification of the invention.
Claims (7)
1. The method for simulating the hydration reaction structural strength change of the large concrete is characterized by comprising the following steps of: acquiring a digital model of each concrete mould, acquiring a stress value on the digital model of each concrete mould, acquiring an analog motion trail of the digital model of each concrete mould, and acquiring a contact surface of the digital model of each concrete mould after the analog motion trail; in the simulated motion trail, calculating a hidden space trail sequence; and (5) reversely optimizing the simulated motion trail.
2. The method for simulating the change of the structural strength of the hydration reaction of the large concrete according to claim 1, wherein the simulated motion trail comprises coordinates of each moment in the displacement process of the concrete mould and speeds and angles corresponding to the coordinates of each moment, the speeds corresponding to the coordinates of each moment represent instantaneous speeds corresponding to the coordinates of the moment in the simulated motion trail, and the angles corresponding to the coordinates of each moment represent directions of the instantaneous speeds corresponding to the coordinates of the moment.
3. The method for simulating the change of the strength of the hydration reaction structure of the large concrete according to claim 1, wherein the stress components of the concrete molds on the contact surface are obtained, the contact surface of the concrete molds, which is contacted after the concrete molds pass through the simulated motion track, is obtained through digital simulation, and the stress components of the concrete molds on the contact surface, which are obtained through digital simulation, are recorded, wherein the stress components are an array of the stress components of the concrete molds on each point of the contact surface.
4. The method for simulating the change of the structural strength of the hydration reaction of the large concrete according to claim 1, wherein the digital model of each concrete mould is a data type of point cloud data.
5. The method for simulating the change of the strength of a hydration reaction structure of large concrete according to claim 1 or 2, wherein in the simulated motion trail, the method for calculating the hidden space trail sequence is as follows:
for the speed and angle corresponding to the coordinates of each moment, calculating the preposed speed-direction ratio of the speed and angle corresponding to the coordinates of each moment relative to the speed and angle corresponding to the coordinates of each moment before the moment, and calculating the postposed speed-direction ratio of the speed and angle corresponding to the coordinates of each moment relative to the speed and angle corresponding to the coordinates of each moment after the moment;
calculating hidden space velocity direction ratios corresponding to the coordinates at the moment according to the front velocity direction ratio and the rear velocity direction ratio corresponding to the coordinates at the moment, and forming a hidden space track sequence according to the hidden space velocity direction ratios corresponding to the coordinates at the moment;
the method for calculating the front speed-to-direction ratio corresponding to the coordinates at one moment comprises the following steps: if the coordinate at the moment is the first coordinate in the simulated motion track, the prepositive speed-direction ratio corresponding to the coordinate at the moment is 1; if the coordinate at the moment is not the first coordinate in the simulated motion track, the corresponding speed and angle of the coordinate at the moment and the corresponding speed and angle of the coordinate at each moment before the moment are respectively combined according to the moment, and the numerical value of the probability of comparing the combination of the speed and the angle corresponding to the coordinate at the moment with the combination of the speed and the angle corresponding to the coordinate at each moment before the moment is calculated as the numerical value of the prepositive speed-direction ratio corresponding to the coordinate at the moment;
the method for calculating the post speed-to-direction ratio corresponding to the coordinates at one moment comprises the following steps: if the coordinate at the moment is the last coordinate in the simulated motion track, the postposition speed-direction ratio corresponding to the coordinate at the moment is 0; if the coordinates at the one time are not the last coordinates in the simulated motion track, the corresponding speed and angle of the coordinates at the one time and the corresponding speed and angle of the coordinates at each time after the one time are respectively combined according to the time, and the numerical value of the probability of comparing the combination of the speed and angle of the coordinates at each time after the one time with the combination of the speed and angle of the coordinates at the one time is calculated as the numerical value of the post speed-direction ratio corresponding to the coordinates at the one time.
6. The simulation method for the change of the structural strength of the hydration reaction of the large concrete according to claim 5, wherein the method for calculating the hidden space velocity ratio corresponding to the coordinates at the moment according to the front velocity ratio and the rear velocity ratio corresponding to the coordinates at the moment is as follows: calculating hidden space velocity ratios corresponding to coordinates of one moment, calculating average distribution of prepositive velocity ratios corresponding to coordinates of each moment, calculating average distribution of postpositive velocity ratios corresponding to coordinates of each moment, calculating ratio of prepositive velocity ratios corresponding to coordinates of one moment relative to average distribution of prepositive velocity ratios, calculating ratio of postpositive velocity ratios corresponding to coordinates of one moment relative to average distribution of postpositive velocity ratios, and combining ratio of prepositive velocity ratios corresponding to coordinates of one moment relative to average distribution of prepositive velocity ratios and ratio of postpositive velocity ratios corresponding to coordinates of one moment as numerical value of hidden space velocity ratios corresponding to coordinates of one moment.
7. The method for simulating the change of the structural strength of the hydration reaction of the large concrete according to claim 1, wherein the simulated motion track is reversely optimized according to the hidden space track sequence, and is specifically as follows:
the points at which the digitized models of two different concrete molds contact each other on the contact surface are called contact points, and the points at which the contact points on the digitized models of one concrete mold correspond to the points at which the digitized models of the other concrete mold contact are called contact corresponding points of the contact points;
calculating the divergence of the probability distribution of the stress values of the contact points of the digital model of one concrete mould falling on the contact surface relative to the probability distribution of the stress values of the contact corresponding points of the digital model of the other concrete mould falling on the contact surface as the hidden space velocity node ratio when the digital model of the one concrete mould is contacted with the digital model of the other concrete mould;
calculating hidden space optimization node rate according to hidden space velocity node rate: when the number of the inter-speed directional node rates is smaller than 1 and not equal to 0, the hidden space optimization node rate is equal to the difference obtained by subtracting the numerical value of the inter-speed directional node rate from 1; when the number of the inter-speed directional node rates is equal to 1, the hidden space optimization node rate is equal to the numerical value of the inter-speed directional node rate; when the value of the inter-speed directional node rate is greater than 1, the hidden space optimization node rate is equal to one of the differences of the numerical value of the inter-speed directional node rate minus 1;
when the digital models of the concrete mould collide with each other, the speeds corresponding to all coordinate points in the original simulated motion track are obtained, and the hidden space optimization node rate is used as the weight of the speeds corresponding to all coordinate points in the original simulated motion track to be optimized.
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