Aluminum mold lightweight method and system for building space

Abstract

The present application relates to the technical field of data processing, in particular to a kind of aluminum mould lightweight method and system for building space.The present application obtains actual section stiffness and edge profile height, utilizes actual section stiffness and edge profile height to measure deformation flattening energy demand;Further analyze section stiffness mutation characteristics and edge bending loss characteristics, build conduction loss factor, through the path integral calculation of bidirectional path scanning of conduction loss factor, and then utilize the path integral of bidirectional path scanning to measure effective locking energy supply;Through deformation flattening energy demand and effective locking energy supply calculation gap closure deficit index, and then identify the true defect of aluminum mould edge deformation, and the true defect of aluminum mould edge deformation is repaired with light weight.The present application considers the stiffness non-uniformity of aluminum mould and the effect of locking force conduction attenuation, improves the accuracy of detecting the true defect of aluminum mould edge deformation.

Description

Technical Field

[0001] This invention relates to the field of data processing technology, and specifically to a method and system for lightweighting aluminum formwork for architectural spaces. Background Technology

[0002] Aluminum alloy formwork, or simply aluminum formwork, is widely used in high-rise building construction due to its high turnover rate and forming quality. To balance load-bearing capacity and lightweight requirements, aluminum formwork typically employs a non-uniform cross-section design with alternating "reinforcing ribs and thin walls," significantly improving the pass rate of finished aluminum formwork products. However, during the recycling and refurbishment of aluminum formwork, edge deformation defects often occur due to factors such as impact and wear. Lightweight processes are often required to repair these edge deformation defects, ensuring the lightweight requirements of the aluminum formwork are met.

[0003] Before performing lightweight repair on edge deformation defects in aluminum molds, these defects need to be identified. Existing technologies primarily employ geometric detection methods, using lasers or vision sensors to measure the contour height deviation of the mold's edges. When this deviation exceeds a preset threshold, it is identified as an edge deformation defect and repaired by grinding or leveling. However, existing technologies using geometric detection methods ignore the non-uniform stiffness of the aluminum mold and the attenuation of locking force transmission, making it difficult to accurately detect true edge deformation defects and affecting the effectiveness of subsequent lightweight repair. Summary of the Invention

[0004] To address the technical problem that existing technologies using geometric detection methods struggle to accurately detect true defects in aluminum formwork edge deformation, the present invention aims to provide a lightweight aluminum formwork method and system for architectural spaces. The specific technical solution adopted is as follows:

[0005] In a first aspect, one embodiment of the present invention provides a method for lightweighting aluminum formwork for architectural spaces, the method comprising the following steps:

[0006] Obtain the actual cross-sectional stiffness and edge contour height of each edge slice of the aluminum mold to be tested; obtain the deformation flattening energy requirement of each edge slice based on the actual cross-sectional stiffness and edge contour height;

[0007] Based on the changes in the actual cross-sectional stiffness and edge profile height of adjacent edge slices, analyze the abrupt changes in stiffness and edge loss, and determine the conduction loss factor of each edge slice.

[0008] A bidirectional path scan is performed on each edge slice of the aluminum mold to be tested. Based on the conduction loss factor analysis, the cumulative attenuation under the bidirectional path is analyzed to determine the effective locking energy supply for each edge slice.

[0009] Based on the relationship between the deformation and flattening energy requirements and the effective locking energy supply of each edge slice, the gap closure deficit index of each edge slice is obtained; the gap closure deficit index of each edge slice is used for physical judgment to identify the true defects of aluminum mold edge deformation, and the true defects are repaired with lightweighting.

[0010] Preferably, the method for obtaining the actual cross-sectional stiffness of each edge slice is as follows:

[0011] The control line laser contour sensor performs a full-length scan along the length of the aluminum mold to be detected, and acquires the edge contour point cloud of each edge slice of the aluminum mold to be detected;

[0012] Based on the edge contour point cloud of each edge slice of the aluminum mold to be tested, the contour height sequence of the aluminum mold to be tested is extracted, and the average contour height in the contour height sequence is used as the average wall thickness of the entire length of the aluminum mold to be tested.

[0013] A stiffness attenuation coefficient is constructed based on the average wall thickness along the entire length and the preset standard average wall thickness. The stiffness attenuation coefficient is then used to correct the preset standard section stiffness of each edge slice to obtain the actual section stiffness of each edge slice.

[0014] Preferably, the method for obtaining the edge contour height of each edge slice is as follows:

[0015] The actual cross-sectional stiffness sequence of the aluminum mold to be tested is obtained by using the actual cross-sectional stiffness of each edge slice;

[0016] The optimal translation amount is obtained based on the contour height sequence and actual cross-sectional stiffness sequence of the aluminum mold to be tested. The optimal translation amount is then used to resample each edge slice of the aluminum mold to be tested to obtain the edge contour height of each edge slice.

[0017] Preferably, the method for obtaining the conduction loss factor of each edge slice is as follows:

[0018] Based on the fluctuation of the actual cross-sectional stiffness of adjacent edge slices, determine the cross-sectional stiffness mutation coefficient of each edge slice;

[0019] The edge bending loss coefficient of each edge slice is calculated based on the difference in edge profile height between adjacent edge slices.

[0020] By combining the abrupt change coefficient of cross-sectional stiffness and the edge bending loss coefficient, the conduction loss factor of each edge slice is obtained.

[0021] Preferably, the method for determining the abrupt change coefficient of the cross-sectional stiffness of each edge slice is as follows:

[0022] Based on the actual cross-sectional stiffness of each edge slice and its adjacent edge slices, the central difference method is used to determine the abrupt change coefficient of the cross-sectional stiffness of each edge slice.

[0023] Preferably, the method for obtaining the effective locking energy supply for each edge slice is as follows:

[0024] Based on the model identifier of the aluminum mold to be tested, the set of pin locking force source points of the aluminum mold is obtained, and bidirectional path scanning is performed on each edge slice of the aluminum mold to be tested. The bidirectional path scanning process includes left-path scanning and right-path scanning.

[0025] Based on the exponential decay model, negative mapping is performed on the path integrals of each edge slice during the left-path scanning process and the path integrals of each edge slice during the right-path scanning process, and the effective locking energy supply of each edge slice is obtained by using the result of the negative mapping.

[0026] Preferably, the method for obtaining the path integral is as follows:

[0027] During the left-path scanning process, the edge slice to which the nearest pin locking force source point on the left side of each edge slice belongs is taken as the path starting slice. Based on the accumulation of the conduction loss factor from the path starting slice to the edge slice corresponding to each edge slice, the path integral of each edge slice during the left-path scanning process is calculated.

[0028] During the right-path scanning process, the edge slice to which the nearest pin locking force source point on the right side of each edge slice belongs is taken as the path termination slice. The path integral of each edge slice during the right-path scanning process is calculated based on the cumulative conduction loss factor from each edge slice to the path termination slice.

[0029] Preferably, the method for obtaining the gap closure deficit index of each edge slice is as follows:

[0030] The difference between the energy demand for deformation and flattening and the energy supply for effective locking is calculated based on the principle of energy conservation. The difference is then non-negative to obtain the gap closure deficit index of each edge slice.

[0031] Preferably, the step of identifying genuine defects in the edge deformation of the aluminum mold and performing lightweight repair on the genuine defects includes:

[0032] The maximum value of the gap closure deficit index of all edge slices is counted. If the maximum value is equal to 0, the detection result of the aluminum mold edge deformation is judged as a false defect, and there is no need to perform lightweight repair on the aluminum mold to be tested.

[0033] If the maximum value is greater than 0, the detection result of the aluminum mold edge deformation is determined to be a true defect, and the aluminum mold to be tested needs to be lightweighted and repaired.

[0034] Secondly, embodiments of the present invention also provide a lightweight aluminum formwork system for architectural spaces, including a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor executes the computer program to implement the steps of any of the methods described above.

[0035] The beneficial effects of this invention are:

[0036] This invention provides a reliable data foundation for accurately identifying true defects in the edge deformation of aluminum molds by acquiring the actual cross-sectional stiffness and edge contour height of each edge slice. Combining the actual cross-sectional stiffness and edge contour height, the deformation and flattening energy requirements of each edge slice are accurately calculated, providing a precise energy-based description of the work required for forced flattening of each edge slice. By analyzing adjacent changes in actual cross-sectional stiffness and edge contour height, abrupt stiffness changes and edge losses are analyzed, and the conduction loss factor of each edge slice is accurately calculated. This allows for accurate quantification of the rate of energy decay from the perspective of stiffness non-uniformity, aiding in the accurate identification of true defects in the edge deformation of aluminum molds. By performing a bidirectional path scan of the aluminum mold under test and analyzing the cumulative attenuation along the bidirectional path based on the conduction loss factor, the analysis fully considers the energy changes caused by the attenuation of the locking force, thereby accurately measuring the effective locking energy supply of each edge slice and more accurately representing the actual energy level reaching each edge slice. Furthermore, by combining the energy requirements for deformation and flattening with the effective energy supply for locking, the gap closure deficit index of each edge slice is calculated more accurately. This gap closure deficit index is then used for physical judgment, allowing for a more accurate identification of genuine defects in aluminum mold edge deformation. By fully considering the effects of stiffness non-uniformity and locking force transmission attenuation, this invention improves the accuracy of detecting genuine defects in aluminum mold edge deformation, avoiding any impact on the lightweight repair of edge deformation defects in the aluminum mold. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 A flowchart illustrating a lightweight aluminum formwork method for architectural spaces, provided as an embodiment of the present invention;

[0039] Figure 2 This is a structural diagram of a lightweight aluminum formwork system for architectural spaces, provided as an embodiment of the present invention. Detailed Implementation

[0040] To further illustrate the technical means and effects adopted by the present invention to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation, structure, features, and effects of a lightweight aluminum formwork method and system for architectural spaces proposed according to the present invention. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0042] The following description, in conjunction with the accompanying drawings, details a specific scheme for a lightweight aluminum formwork method and system for architectural spaces provided by this invention.

[0043] Please see Figure 1 The diagram illustrates a flowchart of a lightweight aluminum formwork method for architectural spaces according to an embodiment of the present invention, which includes the following steps:

[0044] Step S101: Obtain the actual cross-sectional stiffness and edge contour height of each edge slice of the aluminum mold to be tested; obtain the deformation flattening energy requirement of each edge slice based on the actual cross-sectional stiffness and edge contour height.

[0045] The aluminum mold to be tested is divided into multiple edge slices, which are multiple longitudinal sections of the aluminum mold obtained by cutting perpendicular to the axis of the mold. In this embodiment of the invention, the sampling interval between adjacent edge slices... The value is 1.0 mm.

[0046] In order to accurately assess the difficulty of correcting edge deformation at each edge slice of the aluminum mold from a mechanical perspective, it is necessary to measure the deformation flattening energy requirement of each edge slice by using the actual cross-sectional stiffness and edge profile height of each edge slice. The actual cross-sectional stiffness can reflect the bending resistance of each edge slice of the aluminum mold, and the edge profile height can reflect the edge deformation characteristics of each edge slice of the aluminum mold.

[0047] Meanwhile, the measurement results of deformation and flattening energy requirements reflect the difficulty of correcting edge deformation at each edge slice of the aluminum mold. The greater the deformation and flattening energy requirements, the greater the difficulty of correcting edge deformation at each edge slice of the aluminum mold, and the higher the energy required for deformation correction.

[0048] Step S102: Based on the changes in the actual cross-sectional stiffness and edge profile height of adjacent edge slices, analyze the abrupt changes in stiffness and edge loss, and determine the conduction loss factor of each edge slice.

[0049] To accurately identify the true defects in the deformation of the aluminum mold edges, it is necessary to accurately analyze the changes in stiffness abruptness and edge loss by examining the actual cross-sectional stiffness and edge profile height of adjacent edge slices. The stiffness abruptness reflects the rate of change of the actual cross-sectional stiffness between adjacent edge slices of the aluminum mold. The more severe the stiffness abruptness, the more likely it is that energy transfer will be blocked due to stress wave reflection. The edge loss reflects the degree of local geometric bending distortion of the aluminum mold surface. The larger the edge bending loss coefficient, the higher the proportion of frictional heat dissipation caused by the pin locking force when passing through the local area of ​​the aluminum mold surface.

[0050] Therefore, by combining the stiffness abrupt change and edge loss, the conduction loss factor of each edge slice is measured. The conduction loss factor reflects the energy decay rate during the energy transfer process. The larger the conduction loss factor, the faster the energy decay rate during the energy transfer process.

[0051] Step S103: Perform bidirectional path scanning on each edge slice of the aluminum mold to be tested, analyze the cumulative attenuation under the bidirectional path based on the conduction loss factor, and determine the effective locking energy supply for each edge slice.

[0052] To accurately simulate the propagation of energy from the pin source point of the aluminum mold along the edge slice direction, it is necessary to analyze the cumulative attenuation under a two-way path based on the conduction loss factor. This characterizes the energy loss reaching each edge slice of the aluminum mold from different sides, and is used to accurately measure the effective locking energy supply in subsequent steps. Therefore, the effective locking energy supply for each edge slice is calculated using the analysis results of the cumulative attenuation under a two-way path. The effective locking energy supply reflects the actual energy supply that can reach each edge slice during the energy transfer process, considering structural impedance and deformation dissipation.

[0053] Step S104: Based on the relationship between the deformation and flattening energy requirements and the effective locking energy supply of each edge slice, obtain the gap closure deficit index of each edge slice; use the gap closure deficit index of each edge slice to make a physical judgment, identify the true defects of aluminum mold edge deformation, and perform lightweight repair on the true defects.

[0054] Whether the aluminum mold exhibits flexible adaptive deformation or rigid non-closable deformation depends on whether the effective locking energy supply reaching each edge slice is sufficient to overcome the elastic potential energy requirement for deformation recovery at that edge slice location. Therefore, by calculating the gap closure deficit index of each edge slice based on the relationship between the deformation flattening energy requirement of each edge slice and the effective locking energy supply, a gap closure deficit index of 0 indicates that the energy reaching that edge slice is in an energy surplus state. This type of aluminum mold edge deformation is flexible adaptive deformation, and the pin locking force can adaptively repair it during construction. A gap closure deficit index greater than 0 indicates that the energy reaching that edge slice is in an energy deficit state. This type of aluminum mold edge deformation is rigid non-closable deformation, and the pin locking force cannot adaptively repair it during construction.

[0055] Therefore, in order to accurately identify the false and true defects of aluminum mold edge deformation, the gap closure deficit index is used for physical judgment to identify the false and true defects of aluminum mold edge deformation. False defects refer to flexible adaptive deformation, which can be adaptively repaired by the pin locking force during construction. True defects are rigid non-closable deformations, which cannot be adaptively repaired by the pin locking force during construction, and require lightweight repair.

[0056] Preferably, in some possible implementations of the embodiments of the present invention, the method for obtaining the actual cross-sectional stiffness of each edge slice includes:

[0057] The control line laser profile sensor performs a full-length scan of the longitudinal section of the aluminum mold to be inspected, and obtains the edge profile point cloud of each edge slice of the aluminum mold to be inspected.

[0058] Based on the edge contour point cloud of each edge slice of the aluminum mold to be tested, the contour height sequence of the aluminum mold to be tested is extracted, and the average contour height within the contour height sequence is used as the average wall thickness of the entire length of the aluminum mold to be tested. The data in the contour height sequence are the contour heights corresponding to each edge slice.

[0059] Although the distribution of reinforcing ribs in the aluminum mold under test is fixed, repeated grinding and refurbishment of the mold reduces its overall wall thickness, resulting in an actual bending strength lower than the design standard value. Directly using the design standard value for calculations would lead to an overestimation of the deformation and flattening energy requirement, resulting in misjudgment. Therefore, it is necessary to correct the preset standard section stiffness of each edge slice using the average wall thickness along the entire length and the preset standard average wall thickness.

[0060] A stiffness attenuation coefficient is constructed based on the average wall thickness along the entire length and the preset standard average wall thickness. The stiffness attenuation coefficient is then used to correct the preset standard section stiffness of each edge slice to obtain the actual section stiffness of each edge slice.

[0061] In one specific implementation of this invention, a visual recognition unit reads the model identifier of the aluminum mold to be inspected, and retrieves the preset standard average wall thickness and the preset standard cross-sectional stiffness of each edge slice from an industrial database. The preset standard average wall thickness is in millimeters (mm), and the preset standard cross-sectional stiffness is in Newton-millimeters (N⋅mm). 2 ).

[0062] In one specific implementation of this invention, a stiffness attenuation coefficient is constructed based on the principles of materials mechanics. The method for constructing this stiffness attenuation coefficient is as follows: ,in, This is the stiffness attenuation coefficient. The average wall thickness is the total length. The preset standard average wall thickness is used. Meanwhile, to prevent interference from abnormal data, the effective range of the stiffness attenuation coefficient is set to [value missing]. If the calculated stiffness attenuation coefficient exceeds the effective range, the system will issue an abnormal alarm.

[0063] In one specific implementation of this invention, the method for obtaining the actual cross-sectional stiffness is as follows: ,in, Let be the actual cross-sectional stiffness of the i-th edge slice. This is the preset standard section stiffness for the i-th edge slice. The actual section stiffness is a corrected value obtained after adjusting the stiffness based on the wear of the old plate, which can more realistically reflect the bending resistance of the current aluminum mold.

[0064] Preferably, in some possible implementations of the embodiments of the present invention, the method for obtaining the edge contour height of each edge slice includes:

[0065] The actual cross-sectional stiffness sequence of the aluminum mold to be tested is constructed from the actual cross-sectional stiffness of each edge slice. The edge slices are sorted according to the order of acquisition, and the actual cross-sectional stiffness in the corresponding actual cross-sectional stiffness sequence is also sorted according to the order of acquisition of the edge slices.

[0066] After obtaining the contour height sequence and actual cross-sectional stiffness sequence of the aluminum mold to be tested, the contour height sequence and the actual cross-sectional stiffness sequence need to be aligned spatially. Furthermore, due to potential slippage, vibration, or sensor triggering delays on the conveyor belt in industrial settings, the measured contour height may have an unknown phase shift. Therefore, this invention requires further correction to the measured contour height.

[0067] The optimal translation amount is obtained based on the contour height sequence and actual cross-sectional stiffness sequence of the aluminum mold to be tested. The optimal translation amount is then used to resample each edge slice of the aluminum mold to be tested to obtain the edge contour height of each edge slice.

[0068] In one specific implementation of this invention, the method for obtaining the optimal translation amount is as follows: Calculate the first-order difference of the contour height sequence, search for the position where the first first-order difference is greater than the jump threshold, and the contour height values ​​of the subsequent 10 consecutive points are all higher than the conveyor belt height, and mark this position as the physical end face position (signal jump point) of the aluminum mold to be detected. The jump threshold is set to 5mm, which is based on the minimum thickness of the aluminum mold. Then, the physical end face position of the aluminum mold to be detected is used as the origin. Set up a cross-referenced search window ,in, To determine the maximum permissible deviation, this embodiment is set to... The maximum permissible deviation is less than the minimum spacing of the reinforcing ribs. Further, within the cross-correlation search window, the normalized cross-correlation (NCC) function between the profile height sequence and the actual cross-sectional stiffness sequence is calculated. The independent variable of the NCC function is the offset, and the offset corresponding to the maximum NCC function is taken as the optimal translation. This optimal translation represents the optimal phase offset of the profile height data under conditions of conveyor belt slippage, vibration, or sensor triggering delay in the industrial environment, and is used to correct the measured profile height.

[0069] In one specific implementation of this invention, the method for obtaining the edge contour height is as follows: First, divide the optimal translation amount by the sampling interval. (1.0mm) to obtain the optimal index translation amount This is used to convert the optimal translation amount into index units. Then, the target index sequence for constructing the contour height sequence is... Calculate the floating-point index sequence of the contour height sequence. Secondly, based on the contour height sequence, linear interpolation is used to linearly interpolate the contour height at each floating-point index position, calculating the precise height value at each floating-point index position, thus correcting the contour height. Finally, the precise height values ​​at all floating-point index positions are resampled to obtain the edge contour height of each edge slice.

[0070] After obtaining the actual cross-sectional stiffness and edge profile height of each edge slice of the aluminum mold to be tested, the deformation and flattening energy requirement of each edge slice is obtained based on the actual cross-sectional stiffness and edge profile height.

[0071] In one specific implementation of this invention, the method for obtaining the deformation and flattening energy requirement is as follows: ,in, The energy requirement for deformation and flattening of the i-th edge slice is... This is the shape correction factor, with a value range of [value range missing]. In this embodiment, it is set as follows: , Let be the actual cross-sectional stiffness of the i-th edge slice. Let be the edge contour height of the i-th edge slice. The standard pin spacing is specified in the design drawings for this type of aluminum mold. .

[0072] The deformation flattening energy requirement is an equivalent energy index; the larger the value, the more difficult it is for external forces to correct the deformation at that location. The edge profile height is measured in millimeters (mm), and the actual cross-sectional stiffness is measured in Newton-millimeters (N⋅mm). 2 The deformation correction factor is a dimensionless constant. Since the calculation formula for the energy requirement of deformation flattening simplifies the calculation by converting a continuous beam structure into a single-point model, this deformation correction factor is used to compensate for boundary condition errors introduced by this simplification. The reference value and range of this deformation correction factor are empirically derived by simulating the work required for unit deformation flattening at different stiffness locations through finite element simulation analysis of the same type of aluminum mold. For example, for a conventional C-slot aluminum mold, the shape correction factor can be set to 3.0.

[0073] For edge slices with the same edge profile height, when the edge slice is in a high-stiffness reinforcing rib region, the corresponding deformation flattening energy requirement is greater, indicating that the edge slice is located in a deformation defect that is difficult to flatten; when the edge slice is in a low-stiffness thin-wall region, the corresponding deformation flattening energy requirement is smaller, indicating that the edge slice is located in a deformation defect that is easy to correct.

[0074] Preferably, in some possible implementations of the embodiments of the present invention, the method for obtaining the conduction loss factor of each edge slice includes:

[0075] Based on the fluctuation of the actual cross-sectional stiffness of adjacent edge slices, the coefficient of change of cross-sectional stiffness for each edge slice is determined.

[0076] Preferably, in some possible implementations of the embodiments of the present invention, the method for determining the abrupt change coefficient of the cross-sectional stiffness of each edge slice includes: determining the abrupt change coefficient of the cross-sectional stiffness of each edge slice using the central difference method based on the actual cross-sectional stiffness of each edge slice and its adjacent edge slices. This abrupt change coefficient of cross-sectional stiffness reflects the rate of change of cross-sectional stiffness along the length direction of the aluminum mold. At the physical level, the abrupt change in stiffness of the aluminum mold to be tested will cause stress wave reflection due to wave impedance mismatch, thereby hindering energy transfer.

[0077] In one specific implementation of this invention, the method for calculating the coefficient of abrupt change in cross-sectional stiffness is as follows: ,in, Let be the coefficient of abrupt change in the cross-sectional stiffness of the i-th edge slice. , These are the actual cross-sectional stiffnesses of the (i+1)th and (i-1)th edge slices, respectively. This represents the sampling interval between adjacent edge slices. In particular, for the abrupt change in cross-sectional stiffness coefficient of edge slices at the endpoints, it is supplemented using either the preceding or following difference method.

[0078] The edge bending loss coefficient of each edge slice is calculated based on the difference in edge profile height between adjacent edge slices. This edge bending loss coefficient reflects the degree of geometric bending distortion in the local area of ​​the aluminum mold to be tested. Physically, the greater the degree of bending in the area of ​​the aluminum mold to be tested, the higher the possibility that the locking force will cause local material micro-yielding or frictional heat dissipation when passing through the area.

[0079] By combining the abrupt change coefficient of cross-sectional stiffness and the edge bending loss coefficient, the conduction loss factor of each edge slice is obtained. This conduction loss factor is an empirical physical quantity; the larger the conduction loss factor, the faster the energy decays along the length of the aluminum mold.

[0080] In one specific implementation of this invention, the method for calculating the edge bending loss coefficient is as follows: ,in, Let be the edge bending loss coefficient of the i-th edge slice. , , These are the edge contour heights of the (i-1), ith, and (i+1)th edge slices, respectively. The sampling interval is denoted as .

[0081] In one specific implementation of this invention, the method for calculating the conduction loss factor is as follows: ,in, Let be the conduction loss factor of the i-th edge slice. To prevent the elimination of zero factors, the range of values ​​is: In this embodiment, the value is taken as... , Let be the normalized value of the actual cross-sectional stiffness of the i-th edge slice. Let be the normalized value of the abrupt change in cross-sectional stiffness coefficient of the i-th edge slice. The normalization method used is maximum value normalization. , , The coefficients for each item are as follows, in this implementation , , To prevent abnormal calculations of the conduction loss factor, a minimum threshold of 0.01 is set for the conduction loss factor. If the calculated result of the conduction loss factor is less than the minimum threshold, the conduction loss factor is forcibly set to 0.01, thereby preventing deadlocks in subsequent calculations caused by the conduction loss factor being 0 or negative under ideal conditions.

[0082] The first term in the formula Characterizing the pressure wave transmission mechanism, the larger the normalized value of the actual cross-sectional stiffness, the higher the continuity of the medium on the aluminum mold under test, and the smaller the transmission loss. (Second item) Characterizing the reflection loss mechanism, the larger the normalized value of the coefficient of variation of cross-sectional stiffness, the stronger the reflection on the aluminum mold under test, and the greater the loss. (Third item) As a distortion dissipation mechanism, the larger the normalized value of the actual cross-sectional stiffness and the larger the edge bending loss coefficient, the more severe the local stress concentration becomes. Energy is absorbed by the material's internal resistance, resulting in greater energy loss. The normalization method used can be either minimum normalization or maximum-minimum normalization.

[0083] To ensure the accuracy of each coefficient in the formula, this invention calibrates the coefficients of each term. First, a standard aluminum template of the same model is selected, and bending deformations of different gradients are simulated on the template. The actual cross-sectional stiffness, cross-sectional stiffness mutation coefficient, and edge bending loss coefficient of each edge slice are recorded. Then, under standard locking conditions, the actual attenuation ratio of the locking force transmitted to each edge slice is measured using a force sensor. A multiple linear regression algorithm is used to fit the relationship between the actual attenuation ratio and the actual cross-sectional stiffness, cross-sectional stiffness mutation coefficient, and edge bending loss coefficient, thus solving for the regression coefficients of the three characteristic parameters. Finally, based on historical simulation experimental data, the coefficients are adjusted using the regression coefficients of the three characteristic parameters. , , The calibration was performed, and the calibration result in this embodiment is as follows: , , .

[0084] Preferably, in some possible implementations of the embodiments of the present invention, the method for obtaining the effective locking energy supply for each edge slice includes:

[0085] Based on the model identifier of the aluminum mold to be tested, the set of pin locking force source points of the aluminum mold is obtained. A bidirectional path scan is then performed on each edge slice of the aluminum mold. The bidirectional path scan process includes left-path scanning and right-path scanning, used to simulate the process of energy propagating from the pin locking force source points along the path of least resistance. The positions within the set of pin locking force source points of the aluminum mold can be understood as the starting points of energy input.

[0086] Based on the exponential decay model, negative mapping is performed on the path integrals of each edge slice during the left-path scanning process and the path integrals of each edge slice during the right-path scanning process. The effective locking energy supply for each edge slice is obtained using the results of the negative mapping. This effective locking energy supply is the energy level that can actually reach each edge slice after considering the structural impedance and deformation dissipation of the aluminum mold under test.

[0087] Preferably, in some possible implementations of the embodiments of the present invention, the method for obtaining the path integral includes:

[0088] During the left-path scanning process, the edge slice to which the nearest pin locking force source point on the left side of each edge slice belongs is taken as the path starting slice. Based on the accumulation of the conduction loss factor from the path starting slice to the edge slice corresponding to each edge slice, the path integral of each edge slice during the left-path scanning process is calculated.

[0089] During the right-path scanning process, the edge slice to which the nearest pin locking force source point on the right side of each edge slice belongs is taken as the path termination slice. The path integral of each edge slice during the right-path scanning process is calculated based on the cumulative conduction loss factor from each edge slice to the path termination slice.

[0090] In one specific implementation of this invention, the path integral of each edge slice during the left-path scanning process is calculated as follows: if the i-th edge slice has a nearest source point on its left side, then let... ,in, Let i be the path integral of the i-th edge slice during the left-path scan. Let be the sequence number of the edge slice to which the left nearest source point of the i-th edge slice belongs. Let be the conduction loss factor of the k-th edge slice. Let be the sampling interval between adjacent edge slices. Conversely, if the i-th edge slice is located at the leftmost end and there is no nearest source point to its left, then let . This indicates that energy cannot reach from the left side.

[0091] In one specific implementation of this invention, the path integral of each edge slice during the right-path scanning process is calculated as follows: if the i-th edge slice has a nearest source point on its right side, then let... ,in, Let i be the path integral of the i-th edge slice during the right-path scan. Let be the sequence number of the edge slice to which the nearest source point to the right of the i-th edge slice belongs. Conversely, if the i-th edge slice is located at the rightmost end and there is no nearest source point to its right, then let be the sequence number of the edge slice to which the nearest source point to the right belongs. This indicates that energy cannot reach from the right side.

[0092] In one specific implementation of this invention, the method for obtaining effective locking energy supply is as follows: ,in, For the effective locking energy supply of the i-th edge slice, To maximize the effective work potential, set The unit is the normalized unit of energy. To find the maximum value function, It is an exponential function with the natural constant as its base. Let i be the path integral of the i-th edge slice during the left-path scan. Let be the path integral of the i-th edge slice during the right-side scanning process. The physical meaning of the maximum effective work potential is the maximum elastic potential energy reserve accumulated by the pin connection and used to overcome the edge deformation of the aluminum mold under test when the pin is locked to the fully wedged state by standard manual hammering.

[0093] Preferably, in some possible implementations of the embodiments of the present invention, the method for obtaining the gap closure deficit index of each edge slice includes:

[0094] Whether the aluminum formwork to be tested exhibits edge deformation during construction essentially depends on whether the effective locking energy supply to each edge slice can overcome the elastic potential energy requirement for deformation recovery at that edge slice location. Therefore, this invention uses a deterministic algebraic inequality based on the principle of energy conservation to make the determination.

[0095] The difference between the energy demand for deformation and flattening and the energy supply for effective locking is calculated based on the principle of energy conservation. The difference is then non-negative to obtain the gap closure deficit index of each edge slice.

[0096] In one specific implementation of this invention, based on the principle of energy conservation, the method for obtaining the gap closure deficit index is as follows: ,in, Let be the gap closure deficit index of the i-th edge slice. The energy requirement for deformation and flattening of the i-th edge slice is... This is the reduction factor for on-site operating conditions, and its value range is [value range missing]. In this embodiment, the value is taken as... , Dimension alignment factor is used to map the normalized effective locking energy supply to the same energy dimension as the deformation and flattening energy requirement. The dimensional alignment factor is obtained from the maximum work done test of the standard pin system.

[0097] The purpose of introducing the field working condition reduction factor in the formula is to cover non-settlement losses caused by pin wear, fluctuations in manual hammering force, and surface friction during construction. Specifically, a gap closure deficit index of 0 indicates sufficient effective locking energy supply, meaning the edge slice is in an energy surplus state. This type of deformation is flexible and adaptive, a pseudo-defect, and the pin locking force can automatically flatten it during construction without manual intervention. Conversely, a gap closure deficit index greater than 0 indicates an energy deficit state at the edge slice. This type of deformation is rigid and cannot be closed, a true defect, and the pin locking force cannot provide sufficient energy to eliminate the deformation during construction, requiring lightweight repair.

[0098] Preferably, in some embodiments of the present invention, identifying genuine defects in the deformation of the aluminum mold edge and performing lightweight repair on the genuine defects includes:

[0099] The maximum value of the gap closure deficit index of all edge slices is calculated. If the maximum value is equal to 0, the detection result of the aluminum mold edge deformation is judged as a false defect. Then the aluminum mold to be tested is a Class A adaptive qualified plate. It does not need to be lightweighted and repaired. It can be directly transported to the finished product area, thereby reducing the ineffective wear on the oxide layer of the aluminum mold surface.

[0100] If the maximum value is greater than 0, the detection result of the aluminum mold edge deformation is determined to be a true defect. Then the aluminum mold to be tested is a Class B repair plate, which needs to be lightweighted and repaired to improve the efficiency of repairing and refurbishing the aluminum mold.

[0101] In one specific implementation of this invention, the method for lightweight repair of the aluminum mold to be inspected is as follows: for the aluminum mold to be inspected that is determined to have a genuine defect, the edge slice index value with a gap closure deficit index greater than 0 is statistically analyzed. , edge slice index value With sampling interval The product of these values ​​is used as the physical repair coordinates along the edge of the aluminum mold. These physical repair coordinates are then sent to a hydraulic leveling device, which moves to the physical repair coordinates and performs lightweight repair on the aluminum mold edge at those coordinates. Specifically, this lightweight repair is a leveling repair, achieved by applying a reverse bending load to reduce the edge profile height at the physical repair coordinate location, thus achieving lightweight repair of the aluminum mold to be inspected.

[0102] In one specific implementation of this invention, considering that the aluminum mold to be inspected is a continuous elastic body, lightweight repair at a certain location may cause stress redistribution and shape changes in adjacent areas or even the entire board surface. To ensure that the aluminum mold to be inspected is fully qualified after lightweight repair, an iterative re-inspection logic is introduced after the lightweight repair of the aluminum mold to be inspected, including:

[0103] After the aluminum mold to be inspected is repaired by weight reduction, the control line laser sensor rescans the edge of the aluminum mold and updates the gap closure defect index of each edge slice. If the maximum value of the gap closure defect index of all edge slices is equal to 0, the repair is considered successful and the repaired aluminum mold is qualified. If the maximum value of the gap closure defect index of all edge slices is greater than 0, the repair is considered unqualified and the repaired aluminum mold is unqualified. A new round of weight reduction repair is then carried out. If the aluminum mold is still unqualified after 3 weight reduction repairs, it is scrapped.

[0104] This invention also proposes a lightweight aluminum formwork system for architectural spaces; please refer to [link / reference]. Figure 2 The diagram shows a structural diagram of a lightweight aluminum formwork system for building spaces provided by an embodiment of the present invention. The system includes: a deformation and flattening energy demand calculation module 201, a conduction loss analysis module 202, an effective locking energy supply calculation module 203, and a defect identification module 204.

[0105] The deformation and flattening energy demand calculation module 201 is used to obtain the actual cross-sectional stiffness and edge contour height of each edge slice of the aluminum mold to be tested; and to obtain the deformation and flattening energy demand of each edge slice based on the actual cross-sectional stiffness and edge contour height.

[0106] The conduction loss analysis module 202 is used to analyze the abrupt changes in stiffness and edge loss based on the changes in the actual cross-sectional stiffness and edge profile height of adjacent edge slices, and to determine the conduction loss factor of each edge slice.

[0107] The effective locking energy supply calculation module 203 is used to perform bidirectional path scanning on each edge slice of the aluminum mold to be tested, and to determine the effective locking energy supply for each edge slice based on the cumulative attenuation under the bidirectional path analysis of the conduction loss factor.

[0108] The defect identification module 204 is used to obtain the gap closure deficit index of each edge slice based on the relationship between the deformation and flattening energy demand and the effective locking energy supply of each edge slice; to make a physical judgment using the gap closure deficit index of each edge slice, to identify the true defects of aluminum mold edge deformation, and to perform lightweight repair on the true defects.

[0109] It should be noted that the order of the above embodiments of the present invention is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. The processes depicted in the accompanying drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0110] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

Claims

1. A method for lightweighting aluminum formwork for architectural spaces, characterized in that, The method includes the following steps: Obtain the actual cross-sectional stiffness and edge contour height of each edge slice of the aluminum mold to be tested; obtain the deformation flattening energy requirement of each edge slice based on the actual cross-sectional stiffness and edge contour height; Based on the changes in the actual cross-sectional stiffness and edge profile height of adjacent edge slices, analyze the abrupt changes in stiffness and edge loss, and determine the conduction loss factor of each edge slice. A bidirectional path scan is performed on each edge slice of the aluminum mold to be tested. Based on the conduction loss factor analysis, the cumulative attenuation under the bidirectional path is analyzed to determine the effective locking energy supply for each edge slice. Based on the relationship between the deformation and flattening energy requirements and the effective locking energy supply of each edge slice, the gap closure deficit index of each edge slice is obtained; the gap closure deficit index of each edge slice is used for physical judgment to identify the true defects of aluminum mold edge deformation, and the true defects are repaired with lightweighting.

2. The lightweight aluminum formwork method for architectural spaces according to claim 1, characterized in that, The method for obtaining the actual cross-sectional stiffness of each edge slice is as follows: The control line laser contour sensor performs a full-length scan along the length of the aluminum mold to be detected, and acquires the edge contour point cloud of each edge slice of the aluminum mold to be detected; Based on the edge contour point cloud of each edge slice of the aluminum mold to be tested, the contour height sequence of the aluminum mold to be tested is extracted, and the average contour height in the contour height sequence is used as the average wall thickness of the entire length of the aluminum mold to be tested. A stiffness attenuation coefficient is constructed based on the average wall thickness along the entire length and the preset standard average wall thickness. The stiffness attenuation coefficient is then used to correct the preset standard section stiffness of each edge slice to obtain the actual section stiffness of each edge slice.

3. The lightweight aluminum formwork method for architectural spaces according to claim 2, characterized in that, The method for obtaining the edge contour height of each edge slice is as follows: The actual cross-sectional stiffness sequence of the aluminum mold to be tested is obtained by using the actual cross-sectional stiffness of each edge slice; The optimal translation amount is obtained based on the contour height sequence and actual cross-sectional stiffness sequence of the aluminum mold to be tested. The optimal translation amount is then used to resample each edge slice of the aluminum mold to be tested to obtain the edge contour height of each edge slice.

4. The lightweight aluminum formwork method for architectural spaces according to claim 1, characterized in that, The method for obtaining the conduction loss factor of each edge slice is as follows: Based on the fluctuation of the actual cross-sectional stiffness of adjacent edge slices, determine the cross-sectional stiffness mutation coefficient of each edge slice; The edge bending loss coefficient of each edge slice is calculated based on the difference in edge profile height between adjacent edge slices. By combining the abrupt change coefficient of cross-sectional stiffness and the edge bending loss coefficient, the conduction loss factor of each edge slice is obtained.

5. A lightweight aluminum formwork method for architectural spaces according to claim 4, characterized in that, The method for determining the abrupt change coefficient of cross-sectional stiffness of each edge slice is as follows: Based on the actual cross-sectional stiffness of each edge slice and its adjacent edge slices, the central difference method is used to determine the abrupt change coefficient of the cross-sectional stiffness of each edge slice.

6. The lightweight aluminum formwork method for architectural spaces according to claim 1, characterized in that, The method for obtaining the effective locking energy supply for each edge slice is as follows: Based on the model identifier of the aluminum mold to be tested, the set of pin locking force source points of the aluminum mold is obtained, and bidirectional path scanning is performed on each edge slice of the aluminum mold to be tested. The bidirectional path scanning process includes left-path scanning and right-path scanning. Based on the exponential decay model, negative mapping is performed on the path integrals of each edge slice during the left-path scanning process and the path integrals of each edge slice during the right-path scanning process, and the effective locking energy supply of each edge slice is obtained by using the result of the negative mapping.

7. A lightweight aluminum formwork method for architectural spaces according to claim 6, characterized in that, The method for obtaining the path integral is as follows: During the left-path scanning process, the edge slice to which the nearest pin locking force source point on the left side of each edge slice belongs is taken as the path starting slice. Based on the accumulation of the conduction loss factor from the path starting slice to the edge slice corresponding to each edge slice, the path integral of each edge slice during the left-path scanning process is calculated. During the right-path scanning process, the edge slice to which the nearest pin locking force source point on the right side of each edge slice belongs is taken as the path termination slice. The path integral of each edge slice during the right-path scanning process is calculated based on the cumulative conduction loss factor from each edge slice to the path termination slice.

8. A lightweight aluminum formwork method for architectural spaces according to claim 1, characterized in that, The method for obtaining the gap closure deficit index of each edge slice is as follows: The difference between the energy demand for deformation and flattening and the energy supply for effective locking is calculated based on the principle of energy conservation. The difference is then non-negative to obtain the gap closure deficit index of each edge slice.

9. A lightweight aluminum formwork method for architectural spaces according to claim 1, characterized in that, The process of identifying genuine defects in the edge deformation of the aluminum mold and performing lightweight repair on these defects includes: The maximum value of the gap closure deficit index of all edge slices is counted. If the maximum value is equal to 0, the detection result of the aluminum mold edge deformation is judged as a false defect, and there is no need to perform lightweight repair on the aluminum mold to be tested. If the maximum value is greater than 0, the detection result of the aluminum mold edge deformation is determined to be a true defect, and the aluminum mold to be tested needs to be lightweighted and repaired.

10. A lightweight aluminum formwork system for architectural spaces, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the lightweight aluminum formwork method for architectural space as described in any one of claims 1-9.

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