CN115081150A - Method and device for determining parameters of energy absorber - Google Patents
Method and device for determining parameters of energy absorber Download PDFInfo
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Abstract
The application provides a method and a device for determining parameters of an energy absorber. Wherein, include: acquiring a simulation model corresponding to the energy absorber, the cylinder diameter of a cylinder body in the energy absorber and the preset height of a plurality of energy-absorbing balls in the energy absorber filled in the cylinder body of the energy absorber to obtain first energy-absorbing efficiency of the simulation model running under the diameters of the plurality of cylinder bodies and second energy-absorbing efficiency of the simulation model running under the heights of the plurality of cylinder bodies, taking the cylinder diameter corresponding to the first energy-absorbing efficiency meeting a preset threshold as the target cylinder diameter of the cylinder body, and taking the preset height corresponding to the second energy-absorbing efficiency meeting the preset threshold as the target height of the energy-absorbing balls filled in the cylinder body of the energy absorber, thereby accurately determining the target cylinder diameter and the target height corresponding to the energy absorber when the energy-absorbing efficiency is optimal based on the corresponding relation between the cylinder diameter of the energy absorber and the preset height of the energy-absorbing balls filled in the cylinder body of the energy absorber and the energy-absorbing efficiency of the energy absorber, the energy absorption efficiency of the energy absorber is improved.
Description
Technical Field
The application relates to the technical field of energy absorbers, in particular to a method and a device for determining parameters of an energy absorber.
Background
At present, the performance of rock drilling equipment directly influences the safety production and the working efficiency of coal mine enterprises, and impact energy is a core parameter of the rock drilling equipment. In an impact energy test system, the energy absorption performance of the energy absorber plays a key role in the test result of the impact energy. In the related art, only the energy absorption performance of the energy absorption device is limited, and the selection of the parameters of the energy absorber is not described and specified, and the parameters of the general energy absorber are based on experience and have no fixed rule, so that a more accurate method for determining the parameters of the energy absorber is urgently needed.
Disclosure of Invention
The application provides a method and a device for determining parameters of an energy absorber.
An embodiment of a first aspect of the present application provides a method for determining a parameter of an energy absorber, where the method includes: acquiring a simulation model corresponding to the energy absorber; obtaining key parameters for determining the energy absorption efficiency of the energy absorber, wherein the key parameters comprise the cylinder diameter of a cylinder body in the energy absorber and the preset height of an energy absorption ball in the energy absorber filled in the cylinder body of the energy absorber; controlling the simulation model to operate based on a plurality of cylinder diameters and the preset heights respectively to obtain first energy absorption efficiency of the simulation model operating under the plurality of cylinder diameters and second energy absorption efficiency of the simulation model operating under the plurality of preset heights; according to the corresponding relation between the first energy absorption efficiency and the diameters of the plurality of cylinders, taking the corresponding cylinder diameter when the first energy absorption efficiency meets a preset threshold value as the target cylinder diameter of the cylinder; and according to the corresponding relation between the second energy absorption efficiency and the plurality of preset heights, taking the corresponding preset height when the second energy absorption efficiency meets a preset threshold value as the target height of the energy absorption ball filled in the cylinder body of the energy absorber.
In an embodiment of the present application, the obtaining a simulation model corresponding to the energy absorber includes: acquiring equipment material parameters and equipment size parameters of each piece of equipment of the energy absorber; processing the equipment material parameters and the equipment size parameters through multi-body system dynamics simulation software RecurDyn to generate an initial simulation model corresponding to the energy absorber; acquiring a sphere material parameter and a sphere size parameter of an initial energy absorption sphere in the energy absorber; processing the ball material parameters and the ball size parameters by using EDEM (discrete element method modeling software) to construct a discrete simulation model of the energy-absorbing ball; and importing the discrete simulation model into the initial simulation model to obtain a simulation model corresponding to the energy absorber.
In an embodiment of the application, the controlling the simulation model to operate based on a plurality of cylinder diameters and the preset height, respectively, to obtain a first energy absorption efficiency of the simulation model operating under the plurality of cylinder diameters and a second energy absorption efficiency of the simulation model operating under the plurality of preset heights, includes: acquiring the quality, impact frequency and impact stroke of a drill rod in the energy absorber; determining the initial impact speed and the initial rebound speed acquired by the drill rod according to the quality of the drill rod, the impact frequency and the impact stroke; and calculating first energy absorption efficiency of the simulation model operating under a plurality of cylinder diameters and second energy absorption efficiency of the simulation model operating under a plurality of preset heights based on the initial impact speed and the initial rebound speed.
In one embodiment of the present application, the method further comprises: acquiring a preset diameter of the energy absorption ball in the energy absorber; controlling the simulation model to operate under a plurality of preset diameters to obtain third energy absorption efficiency of the simulation model under the plurality of preset diameters; and according to the corresponding relation between the third energy absorption efficiency and the preset diameter, taking the corresponding preset diameter when the third energy absorption efficiency reaches a preset stable value as the target diameter of the energy absorption sphere.
In one embodiment of the present application, the method further comprises: determining a target discrete simulation model of the energy-absorbing sphere according to the target diameter, the target height and the target cylinder diameter; and importing the target discrete simulation model into the initial simulation model to obtain a target simulation model corresponding to the energy absorber.
The application provides a method for determining parameters of an energy absorber, which comprises the steps of obtaining a simulation model corresponding to the energy absorber, the cylinder diameter of a cylinder body in the energy absorber and the preset height of a plurality of energy-absorbing balls in the energy absorber filled in the cylinder body of the energy absorber, obtaining first energy-absorbing efficiency of the simulation model running under the diameters of the plurality of cylinder bodies and second energy-absorbing efficiency of the simulation model running under the preset heights, taking the cylinder diameter corresponding to the first energy-absorbing efficiency meeting a preset threshold value as the target cylinder diameter of the cylinder body, taking the preset height corresponding to the second energy-absorbing efficiency meeting the preset threshold value as the target height of the energy-absorbing balls filled in the cylinder body of the energy absorber, and therefore, based on the corresponding relation between the cylinder diameter of the energy absorber and the preset height of the energy-absorbing balls filled in the cylinder body of the energy absorber and the energy absorber efficiency, accurately determining the target cylinder diameter and the target height corresponding to the energy absorber when the energy absorber has the best efficiency, the energy absorption efficiency of the energy absorber is improved.
The embodiment of the second aspect of the application provides a device for determining the parameters of an energy absorber, which comprises: the first acquisition module is used for acquiring a simulation model corresponding to the energy absorber; the second acquisition module is used for acquiring key parameters for determining the energy absorption efficiency of the energy absorber, wherein the key parameters comprise the cylinder diameter of a cylinder body in the energy absorber and the preset height of an energy absorption ball in the energy absorber filled in the cylinder body of the energy absorber; the control module is used for controlling the simulation model to operate based on the cylinder diameters and the preset heights respectively to obtain first energy absorption efficiency of the simulation model operating under the cylinder diameters and second energy absorption efficiency of the simulation model operating under the preset heights; the first generation module is used for taking the corresponding cylinder diameter when the first energy absorption efficiency meets a preset threshold value as the target cylinder diameter of the cylinder according to the corresponding relation between the first energy absorption efficiency and the plurality of cylinder diameters; and the second generating module is used for taking the corresponding preset height when the second energy absorption efficiency meets a preset threshold value as the target height of the energy absorption ball filled in the cylinder body of the energy absorber according to the corresponding relation between the second energy absorption efficiency and the plurality of preset heights.
In an embodiment of the application, the first obtaining module is specifically configured to: acquiring equipment material parameters and equipment size parameters of each piece of equipment of the energy absorber; processing the equipment material parameters and the equipment size parameters through multi-body system dynamics simulation software RecurDyn to generate an initial simulation model corresponding to the energy absorber; acquiring a sphere material parameter and a sphere size parameter of an initial energy absorption sphere in the energy absorber; processing the ball material parameters and the ball size parameters by using EDEM (discrete element method modeling software) to construct a discrete simulation model of the energy-absorbing ball; and importing the discrete simulation model into the initial simulation model to obtain a simulation model corresponding to the energy absorber.
In an embodiment of the present application, the control module is specifically configured to: acquiring the quality, impact frequency and impact stroke of a drill rod in the energy absorber; determining the initial impact speed and the initial rebound speed acquired by the drill rod according to the quality of the drill rod, the impact frequency and the impact stroke; and calculating first energy absorption efficiency of the simulation model operating under a plurality of cylinder diameters and second energy absorption efficiency of the simulation model operating under a plurality of preset heights based on the initial impact speed and the initial rebound speed.
In one embodiment of the present application, the apparatus further comprises: the third acquisition module is used for acquiring the preset diameter of the energy absorption sphere in the energy absorber; the third generation module is used for controlling the simulation model to operate under a plurality of preset diameters so as to obtain third energy absorption efficiency of the simulation model under the plurality of preset diameters; and the fourth generating module is used for taking the corresponding preset diameter when the third energy-absorbing efficiency reaches a preset stable value as the target diameter of the energy-absorbing sphere according to the corresponding relation between the third energy-absorbing efficiency and the preset diameter.
In one embodiment of the present application, the apparatus further comprises: the determining module is used for determining a target discrete simulation model of the energy absorption sphere according to the target diameter, the target height and the target cylinder diameter; and the fifth generation module is used for importing the target discrete simulation model into the initial simulation model so as to obtain a target simulation model corresponding to the energy absorber.
The application provides a device for determining parameters of an energy absorber, which is used for obtaining a simulation model corresponding to the energy absorber, the cylinder diameter of a cylinder body in the energy absorber and the preset height of a plurality of energy-absorbing balls in the energy absorber filled in the cylinder body of the energy absorber so as to obtain first energy-absorbing efficiency of the simulation model running under the diameters of the plurality of cylinder bodies and second energy-absorbing efficiency of the simulation model running under the heights, taking the cylinder diameter corresponding to the first energy-absorbing efficiency meeting a preset threshold value as the target cylinder diameter of the cylinder body, and taking the preset height corresponding to the second energy-absorbing efficiency meeting the preset threshold value as the target height of the energy-absorbing balls filled in the cylinder body of the energy absorber, thereby accurately determining the target cylinder diameter and the target height corresponding to the energy absorber when the efficiency is optimal based on the corresponding relation between the cylinder diameter of the energy absorber and the preset height of the energy-absorbing balls filled in the cylinder body of the energy absorber and the efficiency of the energy absorber, the energy absorption efficiency of the energy absorber is improved.
A third aspect of the present application provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the method for determining an energy absorber parameter of the embodiments of the present application.
A fourth aspect of the present application provides a computer program product, which when executed by an instruction processor of the computer program product implements the method for determining an energy absorber parameter of an embodiment of the present application.
Other effects of the above-described alternative will be described below with reference to specific embodiments.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow chart diagram illustrating a method for determining energy absorber parameters provided by an embodiment of the present application;
FIG. 2 is a schematic flow chart diagram illustrating another method for determining a parameter of an energy absorber according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a geometrical model of an energy absorber recurdyn provided in an embodiment of the present application;
FIG. 4 is a schematic diagram of a calculation model in an EDEM provided by an embodiment of the present application;
FIG. 5 is a schematic flow chart diagram illustrating another method for determining a parameter of an energy absorber according to an embodiment of the present application;
FIG. 6 is a schematic structural diagram of an energy absorber parameter determining apparatus provided by an embodiment of the present application;
FIG. 7 is a schematic structural diagram of another energy absorber parameter determining apparatus provided in accordance with an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The method and apparatus for determining energy absorber parameters of embodiments of the present application are described below with reference to the accompanying drawings.
FIG. 1 is a schematic flow chart illustrating a method for determining a parameter of an energy absorber according to an embodiment of the present disclosure. It should be noted that an execution subject of the method for determining the energy absorber parameter provided in this embodiment is a device for determining the energy absorber parameter, where the device for determining the energy absorber parameter may be implemented in a software and/or hardware manner, and the device for determining the energy absorber parameter in this embodiment may be configured in an electronic device, and the electronic device in this embodiment may include a server, and the embodiment does not specifically limit the electronic device.
FIG. 1 is a schematic flow chart illustrating a method for determining a parameter of an energy absorber according to an embodiment of the present disclosure.
As shown in FIG. 1, the method for determining the energy absorber parameter can include:
In some embodiments, the energy absorber may include a cylinder, a piston, an energy absorbing sphere, and a drill rod, so that the simulation element may be used to simulate material parameters and size parameters of the cylinder, the piston, the energy absorbing sphere, and the drill rod of the energy absorber to obtain a simulation model corresponding to the energy absorber, and thus, the simulation model based on simulation simulates the parameters of the energy absorber, thereby improving the determination efficiency of determining the parameters of the energy absorber and reducing the waste of physical resources.
In other embodiments, the energy absorber may be a friction energy absorber that may be used in, but is not limited to, rock drill products for coal mines.
102, obtaining key parameters for determining the energy absorption efficiency of the energy absorber, wherein the key parameters comprise the cylinder diameter of a cylinder body in the energy absorber and the preset height of an energy absorption ball in the energy absorber filled in the cylinder body of the energy absorber.
Wherein, the energy-absorbing ball in the energy absorber can be a steel ball.
And 103, controlling the simulation model to operate based on the diameters of the cylinders and the preset heights respectively to obtain first energy absorption efficiency of the simulation model operating under the diameters of the cylinders and second energy absorption efficiency of the simulation model operating under the preset heights.
In some embodiments, in the case where the control simulation model operates based on a plurality of cylinder diameters and preset heights, respectively, a first energy absorption efficiency of the simulation model operating at the plurality of cylinder diameters and a second energy absorption efficiency of the simulation model operating at the plurality of preset heights may be calculated by the impact energy of the drill rod, but not limited thereto.
And step 104, according to the corresponding relation between the first energy absorption efficiency and the diameters of the plurality of cylinder bodies, taking the corresponding cylinder body diameter when the first energy absorption efficiency meets a preset threshold value as the target cylinder body diameter of the cylinder body.
In some embodiments, the cylinder diameter of the energy absorber cylinder directly affects the energy absorption efficiency of the energy absorber, and the first energy absorption efficiency gradually decreases with the increase of the cylinder diameter, so that the cylinder diameter corresponding to the real-time energy absorption efficiency threshold can be selected according to the real-time energy absorption efficiency threshold required in the actual operation of the energy absorber and used as the target cylinder diameter of the cylinder, and the first energy absorption efficiency is optimal under the target cylinder diameter, that is, the cylinder diameter corresponding to the optimal first energy absorption efficiency in the actual operation is used as the target cylinder diameter, so that the target cylinder diameter of the cylinder of the energy absorber is accurately determined.
And 105, according to the corresponding relation between the second energy absorption efficiency and the plurality of preset heights, taking the corresponding preset height when the second energy absorption efficiency meets a preset threshold value as a target height for filling the energy absorption ball in the cylinder body of the energy absorber.
In some embodiments, the second energy absorption efficiency is gradually decreased along with the increase of the preset height, so that the corresponding relationship between the second energy absorption efficiency and the plurality of preset heights can be a linear decreasing relationship, and therefore, along with the change of the working environment of the energy absorber, a target height with an optimal working state of the energy absorber is selected from the linear decreasing relationship, that is, the corresponding preset height when the second energy absorption efficiency meets a preset threshold value in actual working is used as the target height of the energy absorption ball filled in the cylinder body of the energy absorber, so that the target height of the energy absorption ball filled in the cylinder body of the energy absorber is accurately determined.
The application provides a method for determining parameters of an energy absorber, which comprises the steps of obtaining a simulation model corresponding to the energy absorber, the cylinder diameter of a cylinder body in the energy absorber and the preset height of a plurality of energy-absorbing balls in the energy absorber filled in the cylinder body of the energy absorber, so as to obtain first energy-absorbing efficiency of the simulation model running under the diameters of the plurality of cylinder bodies and second energy-absorbing efficiency of the simulation model running under the heights, taking the cylinder diameter corresponding to the first energy-absorbing efficiency meeting a preset threshold value as the target cylinder diameter of the cylinder body, and taking the preset height corresponding to the second energy-absorbing efficiency meeting the preset threshold value as the target height of the energy-absorbing balls filled in the cylinder body of the energy absorber, thereby accurately determining the target cylinder diameter and the target height corresponding to the energy absorber when the efficiency is optimal based on the corresponding relation between the cylinder diameter of the energy absorber and the preset height of the energy-absorbing balls filled in the cylinder body of the energy absorber and the efficiency of the energy absorber, the energy absorption efficiency of the energy absorber is improved.
For clear understanding of the present application, the following describes an exemplary process of the method for determining the energy getter parameters with reference to fig. 2, wherein the embodiment is a further refinement or extension of the above-described embodiment.
As shown in FIG. 2, the method for determining the energy absorber parameter can include:
In some embodiments, the device material parameters of each device of the energy absorber can include a material of the device material, an elastic modulus of the device material, and a poisson's ratio of the device material, for example, a steel material is taken as an example, the elastic modulus of the steel material can be 210GPa, and the poisson's ratio of the steel material can be 0.3, but not limited thereto.
In further embodiments, the device dimensioning parameters of the respective device of the energy absorber may include, but are not limited to, the inner cylinder diameter, the wall thickness and the length of the cylinder of the energy absorber cylinder, the piston diameter, the piston thickness of the energy absorber piston, and the column height, the sphere diameter, of the energy absorber energy absorbing sphere, and the shank diameter and the shank length of the energy absorber shank.
Specifically, the device dimensional parameters for each device of the energy absorber can be taken from table 1, which table 1 is as follows:
In some embodiments, the device material parameters and device dimensional parameters described above can be input into the RecurDyn simulation software to generate an initial simulation model corresponding to the initial device material parameters and device dimensional parameters, as shown in FIG. 3, where FIG. 3 includes a perspective view and a cross-sectional view of the energy absorber.
Wherein c in figure 3 is the distance between the energy absorber rod and the energy absorber piston,
the distance between the energy absorber piston and the thick wall of the cylinder body.
In some embodiments, the sphere material parameters of the initial energy absorbing spheres in the energy absorber may include, but are not limited to, the sphere material, and the sphere density, the sphere poisson's ratio, and the sphere elastic modulus corresponding to each energy absorbing sphere, which is not particularly limited in this embodiment.
The material of the sphere may be steel, but is not limited thereto.
In other embodiments, the sphere size parameters in the energy absorber can include, but are not limited to, a predetermined diameter of the energy absorbing sphere and a predetermined height of the plurality of energy absorbing spheres filled in the energy absorber cylinder.
And 204, processing the material parameters and the size parameters of the sphere by using discrete element method modeling software EDEM to construct a discrete simulation model of the energy-absorbing sphere.
In some embodiments, the sphere material parameter and the sphere size parameter of the initial energy-absorbing sphere may be input into the EDEM simulation software to generate a discrete simulation model corresponding to the sphere material parameter and the sphere size parameter of the initial energy-absorbing sphere, as shown in fig. 4, where the cylinder is the discrete simulation model and X, Y, Z is the direction of the three-dimensional coordinates of the discrete simulation model.
And step 205, importing the discrete simulation model into the initial simulation model to obtain a simulation model corresponding to the energy absorber.
In some embodiments, the discrete simulation model and the initial simulation model are model-coupled by importing the discrete simulation model into the initial simulation model to obtain a corresponding simulation model of the energy absorber.
And step 206, obtaining key parameters for determining the energy absorption efficiency of the energy absorber, wherein the key parameters comprise the cylinder diameter of a cylinder body in the energy absorber and the preset height of an energy absorption ball in the energy absorber filled in the cylinder body of the energy absorber.
And step 207, controlling the simulation model to operate based on the diameters of the cylinders and the preset heights respectively to obtain first energy absorption efficiency of the simulation model operating under the diameters of the cylinders and second energy absorption efficiency of the simulation model operating under the preset heights.
And step 208, according to the corresponding relation between the first energy absorption efficiency and the diameters of the plurality of cylinders, taking the corresponding cylinder diameter when the first energy absorption efficiency meets a preset threshold value as the target cylinder diameter of the cylinder.
It should be noted that, for specific implementation manners of step 206 to step 209, reference may be made to the relevant description in the foregoing embodiments.
The application provides a method for determining parameters of an energy absorber, which comprises the steps of obtaining equipment material parameters and equipment size parameters of each piece of equipment of the energy absorber, processing the equipment material parameters and the equipment size parameters through simulation software RecurDyn to generate an initial simulation model corresponding to the energy absorber, obtaining sphere material parameters and sphere size parameters of an initial energy-absorbing sphere in the energy absorber, processing the sphere material parameters and the sphere size parameters through discrete element method modeling software EDEM, constructing a discrete simulation model of the energy-absorbing sphere, guiding the discrete simulation model into the initial simulation model to obtain a simulation model corresponding to the energy absorber, obtaining the cylinder diameter of a cylinder body in the energy absorber and preset heights of a plurality of energy-absorbing spheres in the energy absorber filled in the cylinder body of the energy absorber to obtain first energy-absorbing efficiency of the simulation model operating under the diameters of the cylinders and second energy-absorbing efficiency of the simulation model operating under the preset heights, the method comprises the steps that the corresponding cylinder diameter when the first energy absorption efficiency meets a preset threshold value is used as the target cylinder diameter of a cylinder, the corresponding preset height when the second energy absorption efficiency meets the preset threshold value is used as the target height of an energy absorption ball body filled in the cylinder body of the energy absorber, therefore, a simulation model of the energy absorber is accurately obtained based on a plurality of simulation software, the simulation model is operated to obtain the corresponding relation between the cylinder diameter of the energy absorber and the preset height of the energy absorption ball body filled in the cylinder body of the energy absorber and the energy absorption efficiency of the energy absorber, the target cylinder diameter and the target height corresponding to the energy absorber when the energy absorption efficiency is optimal are accurately determined, and the parameter accuracy of the energy absorber is improved.
FIG. 5 is a schematic flow chart diagram illustrating another method for determining a parameter of an energy absorber according to an embodiment of the present application.
It should be noted that, for a specific implementation manner of step 501 to step 502, reference may be made to the relevant description in the foregoing embodiments.
In some embodiments, the mass of the drill rod, the impact frequency and the impact stroke of the drill rod in the energy absorber can be preset according to the actual application scene, and can also be set by the related technical personnel, but are not limited to the above.
And step 504, determining the initial impact speed and the initial rebound speed acquired by the drill rod according to the quality, the impact frequency and the impact stroke of the drill rod.
In some embodiments, the drill rod quality, the impact frequency and the impact stroke can be set by a technician according to the requirements of a simulation model, and the initial impact speed and the initial rebound speed acquired by the drill rod can be changed according to different drill rod qualities, impact frequencies and impact strokes;
specifically, when the impact stroke is increased from 50 mm to 80 mm in a state that the impact frequency is kept to be 30 Hz or 40 Hz, the initial impact speed and the initial rebound speed of the drill rod are increased, and when the impact stroke is kept to be 50 mm or 80 mm, the impact frequency is increased from 30 Hz to 40 Hz, the initial impact speed and the initial rebound speed of the drill rod are increased, so that the initial impact speed and the initial rebound speed of the drill rod are accurately determined.
It can be understood that the initial impact velocity of the drill rod
The calculation method of (d) may be:
the initial impact frequency is f, the impact stroke is L, and therefore the initial rebound speed is calculated based on the mass of the drill rod and the corresponding relation between the initial impact speed and the initial rebound speed.
And 505, calculating first energy absorption efficiency of the simulation model operating under a plurality of cylinder diameters and second energy absorption efficiency of the simulation model operating under a plurality of preset heights based on the initial impact speed and the initial rebound speed.
In some embodiments, based on the initial impact velocity and the initial rebound velocity, the impact force of the drill rod can be calculated, so that under the condition of the same impact force of the drill rod, a first energy absorption efficiency of the simulation model running under a plurality of cylinder diameters and a second energy absorption efficiency of the simulation model running under a plurality of preset heights are calculated.
And step 506, according to the corresponding relation between the first energy absorption efficiency and the diameters of the plurality of cylinders, taking the corresponding cylinder diameter when the first energy absorption efficiency meets a preset threshold value as the target cylinder diameter of the cylinder.
And step 507, according to the corresponding relation between the second energy absorption efficiency and a plurality of preset heights, taking the corresponding preset height when the second energy absorption efficiency meets a preset threshold value as a target height for filling the energy absorption ball in the cylinder body of the energy absorber.
The application provides a method for determining parameters of an energy absorber, which comprises the steps of obtaining a simulation model corresponding to the energy absorber, the cylinder body diameter of a cylinder body in the energy absorber and the preset height of a plurality of energy-absorbing balls in the energy absorber filled in the cylinder body of the energy absorber, then obtaining the quality, impact frequency and impact stroke of a drill rod in the energy absorber, determining the initial impact speed and initial rebound speed obtained by the drill rod through the quality, impact frequency and impact stroke of the drill rod, calculating the first energy-absorbing efficiency of the simulation model running under a plurality of preset diameters and the second energy-absorbing efficiency of the simulation model running under a plurality of preset heights on the basis of the initial impact speed and the initial rebound speed, taking the cylinder body diameter corresponding to the first energy-absorbing efficiency when the first energy-absorbing efficiency meets a preset threshold value as the target cylinder body diameter of the cylinder body, and taking the corresponding preset height of the second energy-absorbing efficiency when the second energy-absorbing efficiency meets the preset threshold value as the target height of the energy-absorbing balls filled in the cylinder body of the energy absorber, therefore, based on the corresponding relation between the cylinder diameter of the energy absorber and the preset height of the energy absorbing ball filled in the cylinder body of the energy absorber and the energy absorbing efficiency of the energy absorber, the target cylinder diameter and the target height corresponding to the energy absorber when the energy absorbing efficiency is optimal are accurately determined, and the accuracy of the parameters of the energy absorber is improved.
In other embodiments, the preset diameter of the energy-absorbing sphere in the energy absorber may affect the stability of the energy-absorbing efficiency of the energy absorber, and one implementation manner of determining the target diameter of the energy-absorbing sphere in the energy absorber may be to obtain the preset diameter of the energy-absorbing sphere in the energy absorber, control the simulation model to operate at a plurality of preset diameters to obtain third energy-absorbing efficiencies of the simulation model at the plurality of preset diameters, and according to a corresponding relationship between the third energy-absorbing efficiency and the preset diameter, use the corresponding preset diameter when the third energy-absorbing efficiency reaches a preset stable value as the target diameter of the energy-absorbing sphere to realize accurate selection of the target diameter of the energy-absorbing sphere.
Specifically, the third energy-absorbing efficiency that different preset diameters correspond is approximate positive correlation, the change of energy-absorbing spheroid diameter, can influence the standard deviation of third energy-absorbing efficiency, the standard deviation of third energy-absorbing efficiency is big more, the more unstable the energy absorber work this moment, on the contrary, the standard deviation of third energy-absorbing efficiency is little less, the more stable the energy absorber work, so can reach when predetermined stable value with third energy-absorbing efficiency, the standard deviation of third energy-absorbing efficiency is less, accord with the work demand of energy absorber, regard the target diameter of energy-absorbing spheroid as the predetermined diameter that third energy-absorbing efficiency corresponds this moment, thereby the target diameter of energy-absorbing spheroid in the energy absorber is accurately determined.
In summary, the optimal target diameter, target height and target cylinder diameter are accurately selected through the energy absorption efficiency of the simulation model respectively corresponding to the preset diameters, preset heights and cylinder diameters, so that the target discrete simulation model of the energy absorption sphere is determined, the target discrete simulation model is led into the initial simulation model to obtain the target simulation model corresponding to the energy absorber, and therefore the accurate determination of the energy absorber parameters is achieved, and the target simulation model with the optimal energy absorption efficiency is established based on the energy absorber parameters.
FIG. 6 is a schematic structural diagram of an energy absorber parameter determining apparatus provided by an embodiment of the present application.
As shown in fig. 6, the means 600 for determining the energy absorber parameter comprises: a first acquisition module 601, a second acquisition module 602, a control module 603, a first generation module 604, and a second generation module 605.
The first obtaining module 601 is configured to obtain a simulation model corresponding to the energy absorber.
The second obtaining module 602 is configured to obtain preset parameters corresponding to energy absorbing spheres in the energy absorber, where the preset parameters may include a preset diameter of the energy absorbing spheres and a preset height of filling the energy absorbing spheres in a cylinder of the energy absorber.
The control module 603 is configured to control the simulation model to operate based on a plurality of preset diameters and preset heights, respectively, to obtain a first energy absorption efficiency of the simulation model operating at the plurality of preset diameters, and a second energy absorption efficiency of the simulation model operating at the plurality of preset heights.
The first generating module 604 is configured to, according to the corresponding relationship between the first energy absorption efficiency and the plurality of preset diameters, use a corresponding preset diameter when the first energy absorption efficiency reaches a preset stable value as a target diameter of the energy absorption sphere.
And a second generating module 605, configured to, according to a corresponding relationship between the second energy absorption efficiency and the plurality of preset heights, use the corresponding preset height when the second energy absorption efficiency meets a preset threshold as a target height for filling the energy absorption sphere in the energy absorber cylinder.
The application provides a device for determining parameters of an energy absorber, which is used for obtaining a simulation model corresponding to the energy absorber, the cylinder diameter of a cylinder body in the energy absorber and the preset height of a plurality of energy-absorbing balls in the energy absorber filled in the cylinder body of the energy absorber so as to obtain first energy-absorbing efficiency of the simulation model running under the diameters of the plurality of cylinder bodies and second energy-absorbing efficiency of the simulation model running under the heights, taking the cylinder diameter corresponding to the first energy-absorbing efficiency meeting a preset threshold value as the target cylinder diameter of the cylinder body, and taking the preset height corresponding to the second energy-absorbing efficiency meeting the preset threshold value as the target height of the energy-absorbing balls filled in the cylinder body of the energy absorber, thereby accurately determining the target cylinder diameter and the target height corresponding to the energy absorber when the efficiency is optimal based on the corresponding relation between the cylinder diameter of the energy absorber and the preset height of the energy-absorbing balls filled in the cylinder body of the energy absorber and the efficiency of the energy absorber, the energy absorption efficiency of the energy absorber is improved.
In an embodiment of the present application, fig. 7 is a schematic structural diagram of another energy absorber parameter determining apparatus provided in an embodiment of the present application, and as shown in fig. 7, the energy absorber parameter determining apparatus 700 may further include: a first obtaining module 701, a second obtaining module 702, a control module 703, a first generating module 704 and a second generating module 705, wherein the apparatus further comprises: a third obtaining module 706, a third generating module 707, a fourth generating module 708, a determining module 709, and a fifth generating module 710.
For a detailed description of the first obtaining module 701, the second obtaining module 702, the control module 703, the first generating module 704, and the second generating module 705, please refer to the descriptions of the first obtaining module 601, the second obtaining module 602, the control module 603, the first generating module 604, and the second generating module 605 in the embodiment shown in fig. 6, which will not be described here.
In an embodiment of the present application, as shown in fig. 7, the first obtaining module 701 is specifically configured to:
and acquiring the equipment material parameters and the equipment dimension parameters of each equipment of the energy absorber.
And processing the equipment material parameters and the equipment size parameters through multi-body system dynamics simulation software RecurDyn to generate an initial simulation model corresponding to the energy absorber.
And acquiring the sphere material parameter and the sphere size parameter of the initial energy absorption sphere in the energy absorber.
And (3) processing the material parameters and the size parameters of the sphere by using EDEM (discrete element method) modeling software to construct a discrete simulation model of the energy-absorbing sphere.
And importing the discrete simulation model into the initial simulation model to obtain a simulation model corresponding to the energy absorber.
In an embodiment of the present application, as shown in fig. 7, the control module 603 is specifically configured to:
and acquiring the quality, impact frequency and impact stroke of a drill rod in the energy absorber.
And determining the initial impact speed and the initial rebound speed acquired by the drill rod according to the quality, the impact frequency and the impact stroke of the drill rod.
And calculating first energy absorption efficiency of the simulation model running under a plurality of preset diameters and second energy absorption efficiency of the simulation model running under a plurality of preset heights based on the initial impact speed and the initial rebound speed.
In one embodiment of the present application, as shown in fig. 7, the apparatus further comprises:
a third obtaining module 706 obtains a cylinder diameter of a cylinder in the energy absorber.
And a third generating module 707, configured to control the simulation model to operate at a plurality of cylinder diameters, so as to obtain a third energy absorption efficiency of the simulation model at the plurality of cylinder diameters.
A fourth generating module 708, configured to use, according to the corresponding relationship between the third energy absorption efficiency and the cylinder diameter, a corresponding cylinder diameter when the third energy absorption efficiency satisfies a preset threshold as a target cylinder diameter of the cylinder.
In one embodiment of the present application, as shown in fig. 7, the apparatus further comprises:
the determining module 709 is used for determining a target discrete simulation model of the energy absorption sphere according to the target diameter, the target height and the target cylinder diameter.
And a fifth generating module 710, configured to import the target discrete simulation model into the initial simulation model to obtain a target simulation model corresponding to the energy absorber.
The application provides a device for determining parameters of an energy absorber, which is used for obtaining a simulation model corresponding to the energy absorber, the cylinder diameter of a cylinder body in the energy absorber and the preset height of a plurality of energy-absorbing balls in the energy absorber filled in the cylinder body of the energy absorber so as to obtain first energy-absorbing efficiency of the simulation model running under the diameters of the plurality of cylinder bodies and second energy-absorbing efficiency of the simulation model running under the heights, taking the cylinder diameter corresponding to the first energy-absorbing efficiency meeting a preset threshold value as the target cylinder diameter of the cylinder body, and taking the preset height corresponding to the second energy-absorbing efficiency meeting the preset threshold value as the target height of the energy-absorbing balls filled in the cylinder body of the energy absorber, thereby accurately determining the target cylinder diameter and the target height corresponding to the energy absorber when the efficiency is optimal based on the corresponding relation between the cylinder diameter of the energy absorber and the preset height of the energy-absorbing balls filled in the cylinder body of the energy absorber and the efficiency of the energy absorber, the energy absorption efficiency of the energy absorber is improved.
There is also provided, in accordance with an embodiment of the present application, a non-transitory computer-readable storage medium having stored thereon computer instructions for causing a computer to perform a method for determining an energy absorber parameter of an embodiment of the present application.
The present application further proposes a computer program product, which when executed by an instruction processor in the computer program product implements the method for determining a parameter of an energy absorber according to an embodiment of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A method of determining a parameter of an energy absorber, the method comprising:
acquiring a simulation model corresponding to the energy absorber;
obtaining key parameters for determining the energy absorption efficiency of the energy absorber, wherein the key parameters comprise the cylinder diameter of a cylinder body in the energy absorber and the preset height of an energy absorption ball in the energy absorber filled in the cylinder body of the energy absorber;
controlling the simulation model to operate based on a plurality of cylinder diameters and the preset heights respectively to obtain first energy absorption efficiency of the simulation model operating under the plurality of cylinder diameters and second energy absorption efficiency of the simulation model operating under the plurality of preset heights;
according to the corresponding relation between the first energy absorption efficiency and the diameters of the plurality of cylinders, taking the corresponding cylinder diameter when the first energy absorption efficiency meets a preset threshold value as the target cylinder diameter of the cylinder;
and according to the corresponding relation between the second energy-absorbing efficiency and the preset heights, taking the corresponding preset height when the second energy-absorbing efficiency meets a preset threshold value as the target height for filling the energy-absorbing ball in the cylinder body of the energy absorber.
2. The method of claim 1, wherein obtaining a simulation model corresponding to the energy absorber comprises:
acquiring equipment material parameters and equipment size parameters of each piece of equipment of the energy absorber;
processing the equipment material parameters and the equipment size parameters through multi-body system dynamics simulation software RecurDyn to generate an initial simulation model corresponding to the energy absorber;
acquiring a sphere material parameter and a sphere size parameter of an initial energy absorption sphere in the energy absorber;
processing the ball material parameters and the ball size parameters by using EDEM (discrete element method modeling software) to construct a discrete simulation model of the energy-absorbing ball;
and importing the discrete simulation model into the initial simulation model to obtain a simulation model corresponding to the energy absorber.
3. The method according to claim 1, wherein said controlling said simulation model to operate based on a plurality of said cylinder diameters and said preset heights, respectively, to obtain a first energy absorption efficiency for the simulation model operating at a plurality of said cylinder diameters and a second energy absorption efficiency for the simulation model operating at a plurality of said preset heights, comprises:
acquiring the quality, impact frequency and impact stroke of a drill rod in the energy absorber;
determining the initial impact speed and the initial rebound speed acquired by the drill rod according to the quality of the drill rod, the impact frequency and the impact stroke;
and calculating first energy absorption efficiency of the simulation model operating under a plurality of cylinder diameters and second energy absorption efficiency of the simulation model operating under a plurality of preset heights based on the initial impact speed and the initial rebound speed.
4. The method of claim 2, further comprising:
acquiring a preset diameter of the energy absorption ball in the energy absorber;
controlling the simulation model to operate under a plurality of preset diameters to obtain third energy absorption efficiency of the simulation model under the plurality of preset diameters;
and according to the corresponding relation between the third energy absorption efficiency and the preset diameter, taking the corresponding preset diameter when the third energy absorption efficiency reaches a preset stable value as the target diameter of the energy absorption sphere.
5. The method of claim 4, further comprising:
determining a target discrete simulation model of the energy-absorbing sphere according to the target diameter, the target height and the target cylinder diameter;
and importing the target discrete simulation model into the initial simulation model to obtain a target simulation model corresponding to the energy absorber.
6. An apparatus for determining a parameter of an energy absorber, the apparatus comprising:
the first acquisition module is used for acquiring a simulation model corresponding to the energy absorber;
the second acquisition module is used for acquiring key parameters for determining the energy absorption efficiency of the energy absorber, wherein the key parameters comprise the cylinder diameter of a cylinder body in the energy absorber and the preset height of an energy absorption ball in the energy absorber filled in the cylinder body of the energy absorber;
the control module is used for controlling the simulation model to operate based on the cylinder diameters and the preset heights respectively to obtain first energy absorption efficiency of the simulation model operating under the cylinder diameters and second energy absorption efficiency of the simulation model operating under the preset heights;
the first generation module is used for taking the corresponding cylinder diameter when the first energy absorption efficiency meets a preset threshold value as the target cylinder diameter of the cylinder according to the corresponding relation between the first energy absorption efficiency and the plurality of cylinder diameters;
and the second generating module is used for taking the corresponding preset height when the second energy-absorbing efficiency meets a preset threshold value as the target height of the energy-absorbing ball filled in the cylinder body of the energy absorber according to the corresponding relation between the second energy-absorbing efficiency and the plurality of preset heights.
7. The apparatus of claim 6, wherein the first obtaining module is specifically configured to:
acquiring equipment material parameters and equipment size parameters of each piece of equipment of the energy absorber;
processing the equipment material parameters and the equipment size parameters through multi-body system dynamics simulation software RecurDyn to generate an initial simulation model corresponding to the energy absorber;
acquiring a sphere material parameter and a sphere size parameter of an initial energy absorption sphere in the energy absorber;
processing the ball material parameters and the ball size parameters by using EDEM (discrete element method modeling software) to construct a discrete simulation model of the energy-absorbing ball;
and importing the discrete simulation model into the initial simulation model to obtain a simulation model corresponding to the energy absorber.
8. The apparatus of claim 6, wherein the control module is specifically configured to:
acquiring the quality, impact frequency and impact stroke of a drill rod in the energy absorber;
determining the initial impact speed and the initial rebound speed acquired by the drill rod according to the quality of the drill rod, the impact frequency and the impact stroke;
and calculating first energy absorption efficiency of the simulation model operating under a plurality of cylinder diameters and second energy absorption efficiency of the simulation model operating under a plurality of preset heights based on the initial impact speed and the initial rebound speed.
9. The apparatus of claim 7, further comprising:
the third acquisition module is used for acquiring the preset diameter of the energy absorption sphere in the energy absorber;
the third generation module is used for controlling the simulation model to operate under a plurality of preset diameters so as to obtain third energy absorption efficiency of the simulation model under the plurality of preset diameters;
and the fourth generating module is used for taking the corresponding preset diameter when the third energy-absorbing efficiency reaches a preset stable value as the target diameter of the energy-absorbing sphere according to the corresponding relation between the third energy-absorbing efficiency and the preset diameter.
10. The apparatus of claim 9, further comprising:
the determining module is used for determining a target discrete simulation model of the energy absorption sphere according to the target diameter, the target height and the target cylinder diameter;
and the fifth generation module is used for importing the target discrete simulation model into the initial simulation model so as to obtain a target simulation model corresponding to the energy absorber.
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Application publication date: 20220920 |