CN115859747B - Calculation method, device, equipment and storage medium for interference connection transmission load - Google Patents
Calculation method, device, equipment and storage medium for interference connection transmission load Download PDFInfo
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Abstract
The invention discloses a calculation method, a device, equipment and a storage medium for interference connection transmission load. Wherein the method comprises the following steps: establishing a container model according to the container, and establishing a contained part model according to the contained part; carrying out statics finite element analysis on the container model and the contained part model, and determining a branch reaction curve at the boundary of the container based on the contact type and boundary condition of the container and the contained part; the load transmitted by the interference connection structure is obtained from the branch reaction curve, so that the load transmitted by the containing member and the contained member with regular structure can be calculated, and the load transmitted by the containing member and the contained member with irregular structure can be calculated, namely, the structural shapes of the containing member and the contained member are not limited.
Description
Technical Field
The invention relates to the technical field of logging, in particular to a calculation method, a device, equipment and a storage medium for interference connection transmission load.
Background
Interference coupling is a coupling that utilizes an interference fit between parts that can transfer torque or axial forces or a load that is a combination of both. After the interference connection is assembled, the inner hole of the containing member is forced to expand outwards, the contained member is compressed in the matching surface area, and the contained member has a tendency to recover to the original size in the elastic range, so that pressure is generated at the matching surface of the contained member, and friction force is generated to transfer load. When the structural shapes of the containing member and the contained member are cylindrical, the formula recommended by GB/T5371 can be used for calculating the maximum axial force which can be transmitted by the specified structure.
When the structural shapes of the containing member and the contained member are not regular cylinders, as shown in fig. 1 (the containing member is not cylindrical, and the outer circle is provided with a groove for passing mud), no applicable theoretical formula can be used for calculating the transmission load.
Disclosure of Invention
The present invention has been made in view of the above problems, and has as its object to provide a computing method, an apparatus, an electronic device, and a computer storage medium for interference coupling transfer load that overcome or at least partially solve the above problems.
According to one aspect of the present invention, there is provided a method of calculating an interference coupling transfer load, comprising:
establishing a container model according to the container, and establishing a contained part model according to the contained part;
carrying out statics finite element analysis on the container model and the contained part model, and determining a branch reaction curve at the boundary of the container based on the contact type and boundary condition of the container and the contained part;
and acquiring the load transmitted by the interference coupling structure from the branch reaction curve.
According to another aspect of the present invention there is provided a computing device for interference coupling transfer of loads, comprising:
the model building module is used for building a container model according to the container and building a contained part model according to the contained part;
the finite element module is used for carrying out statics finite element analysis on the container model and the contained part model, and determining a branch reaction curve at the boundary of the container based on the contact type and boundary condition of the container and the contained part;
and the load acquisition module is used for acquiring the load transmitted by the interference coupling structure from the branch reaction curve.
According to another aspect of the present invention, there is provided an electronic apparatus including: the device comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete communication with each other through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the operation corresponding to the calculation method of the interference connection transmission load.
According to another aspect of the present invention, there is provided a computer storage medium having stored therein at least one executable instruction for causing a processor to perform operations corresponding to the method for calculating interference coupling transfer loads according to the present invention.
According to the calculation method, the electronic equipment and the computer storage medium for the interference connection transmission load disclosed by the invention, a container model is built according to the container, and a contained part model is built according to the contained part; carrying out statics finite element analysis on the container model and the contained part model, and determining a branch reaction curve at the boundary of the container based on the contact type and boundary condition of the container and the contained part; the load transmitted by the interference connection structure is obtained from the branch reaction curve, so that the load transmitted by the containing member and the contained member with regular structure can be calculated, and the load transmitted by the containing member and the contained member with irregular structure can be calculated, namely, the structural shapes of the containing member and the contained member are not limited.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 shows a schematic view of a container and a contained member of an irregular cylindrical structure provided according to the prior art of the present invention;
fig. 2 is a schematic flow chart of a calculation method of an interference coupling transmission load according to a first embodiment of the present invention;
fig. 3 is a schematic flow chart of a calculation method of an interference coupling transmission load according to a second embodiment of the present invention;
fig. 4 shows a schematic diagram of boundary condition setting in a calculation method of an interference coupling transmission load according to a second embodiment of the present invention;
fig. 5 shows a schematic diagram of a secondary reaction force curve in a calculation method of an interference coupling transmission load according to a second embodiment of the present invention;
fig. 6 is a schematic flow chart of a calculation method of an interference coupling transmission load according to a third embodiment of the present invention;
FIG. 7 is a schematic diagram of a computing device for transmitting load via an interference coupling according to a fourth embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electronic device according to a sixth embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example 1
Fig. 2 is a schematic flow chart of a calculation method of an interference coupling transmission load according to a first embodiment of the invention. The execution body of the embodiment is a computing device for transmitting load through interference connection, which is provided by the embodiment of the invention, and the device can be realized by software or hardware. As shown in fig. 2, the method includes:
step S11, a container model is built according to the container, and a contained part model is built according to the contained part.
The structures of the containing member and the contained member can be regular cylinders or irregular cylinders.
Specifically, when the containing member and the contained member are regular cylinders, cylinders with the diameter of 80mm and the length of 100mm at the matched position can be directly selected as the contained member, and a sleeve body with the outer diameter of 100mm, the wall thickness of 10.1mm and the length of 40mm is selected as the containing member.
When the containing member and the contained member are in a regular cylindrical shape, a containing member model and a contained member model can be respectively established according to the actual sizes of the containing member and the contained member; or respectively establishing a container and a contained part model according to the maximum interference or the minimum interference. For example, three-dimensional modeling software is used to build the container model and the contained model, respectively.
And S12, carrying out statics finite element analysis on the container model and the contained part model, and determining a branch reaction curve at the boundary of the container based on the contact type and the boundary condition of the container and the contained part.
The contact type is friction, and can be set by user definition, and corresponding friction coefficient and penetration tolerance are set.
The boundary conditions can also be set by user definition. When the calculated load is the maximum axial force value, the boundary conditions are set as follows: fixing the end face of one side of the contained part and setting the axial displacement of one side of the contained part. When the calculated load is the maximum torque, boundary conditions are set as follows: fixing the end face of one side of the contained part, and setting the angular displacement of one side of the contained part rotating around the axis. Specifically, the displacement setting can be performed in a stepwise loading manner. For example, the sub-set of finite element statics software may be turned on, the minimum number of sub-steps should be greater than 10 steps.
Specifically, the inclusion model and the inclusion model can be led into a finite element statics module for statics finite element analysis, and the inclusion are meshed and solved; and extracting the branch counterforce at the boundary of the containing member to obtain a branch counterforce curve. From theoretical mechanics, the magnitude of static friction force is equal to the external force, and the maximum value of static friction force is equal to the dynamic friction force. The magnitude of the dynamic friction force is equal to the product of the positive pressure and the friction coefficient. The dynamic friction value is thus obtained by means of a value of the counter-force in the finite element hydrostatic module, taking into account the application of the relative axial movement of the containing member and the contained member.
And S13, acquiring the load transmitted by the interference coupling structure from the branch reaction force curve.
Specifically, a constant value of an ordinate value in the branch reaction force curve can be extracted, and the constant value is used as a load transmitted by the interference connection structure.
It follows that this embodiment establishes a female member model from the female member and a female member model from the female member; carrying out statics finite element analysis on the container model and the contained part model, and determining a branch reaction curve at the boundary of the container based on the contact type and boundary condition of the container and the contained part; the load transmitted by the interference connection structure is obtained from the branch reaction curve, so that the load transmitted by the containing member and the contained member with regular structure can be calculated, and the load transmitted by the containing member and the contained member with irregular structure can be calculated, namely, the structural shapes of the containing member and the contained member are not limited.
In an alternative embodiment, step S12 specifically includes:
in step S121, in response to the first user operation, the type of contact between the container and the contained member is obtained as friction.
Wherein the first user operation is for setting a contact type of the female member with the female member. Specifically, a setting interface can be generated, and the user completes the setting of the contact type of the containing member and the contained member by triggering the virtual switch at the preset position of the setting interface.
In step S122, in response to the second user operation, a boundary condition is acquired.
Wherein the first user operation is to set a boundary condition. Specifically, a setting interface can be generated, and the user completes the setting of the boundary conditions of the containing member and the contained member by triggering a virtual switch at a preset position of the setting interface. In addition, the set boundary conditions are also related to the calculated load. When the calculated load is the maximum axial force value, the set boundary conditions are: fixing the end face of one side of the contained part, and setting the axial displacement of one side of the contained part; when the calculated load is the maximum torque, the boundary conditions are set as follows: fixing the end face of one side of the contained part, and setting the angular displacement of one side of the contained part rotating around the axis.
Step S123, meshing the container and the contained part, and solving.
And S124, extracting the branch counter force at the boundary of the containing member to obtain a branch counter force curve.
Specifically, when the calculated load is the maximum axial force value, the branch reaction force at the axial displacement of the boundary of the containing member is extracted, and a branch reaction force curve is obtained. And when the calculated load is the maximum torque, extracting the branch counterforce of the angular displacement of the boundary of the containing member rotating around the axis, and obtaining a branch counterforce curve.
In an alternative embodiment, after obtaining that the type of container contact with the contained member is friction in response to the first user operation, the method further comprises:
in response to a third user operation, a coefficient of friction and penetration tolerance are obtained.
Example two
Fig. 3 is a schematic flow chart of a calculation method of interference coupling transmission load according to a second embodiment of the present invention. The present embodiment describes the present invention based on the inclusion member and the inclusion member being of regular cylindrical shape. As shown in fig. 3, the method includes:
and S21, selecting a cylinder with the diameter of the matched part being 80mm and the length of 100mm as a contained part, and selecting a sleeve body with the outer diameter of 100mm, the wall thickness of 10.1mm and the length of 40mm as a contained part.
And S22, respectively establishing the surfaces of the containing member and the contained member according to the axisymmetric principle and introducing the surfaces into the finite element hydrostatic module.
In step S23, the sleeve body and the mating portion of the shaft are placed in contact for transmitting the axial force and the positive pressure, wherein the contact type is friction.
Wherein the friction coefficient is set to 0.1. The penetration tolerance type is selected as a value and the size is set to 0.01mm.
In step S24, as shown in fig. 4, the boundary 1 constrains the Y-displacement to 0, the remaining degrees of freedom are released, and the boundary 2 sets the Y-displacement to 1mm at the right boundary of the sleeve body, and the remaining degrees of freedom are released to simulate the relative movement of the container and the contained member in the axial direction.
Moreover, a displacement of 1mm directly loaded in a single step does not necessarily capture the maximum back force, i.e. it is not determinable how much displacement is loaded by the bottom choice. The displacement is set by a step loading mode. Sub-setting of opening finite element statics module, initial sub-number set to 15, minimum sub-number set to 10, maximum sub-number set to 30.
Step S25, dividing grids, and dividing smaller grids on the contact surface.
Step S26, solving.
And S27, extracting the branch counter force at the boundary 2 to obtain a branch counter force curve.
As shown in fig. 5, a reaction force curve is obtained at this time due to the step-loading displacement.
In step S28, the ordinate value of the branch reaction force curve is finally constant at 97990N from small to large. The value of this constant is the maximum axial force value transmitted for this interference coupling.
It can be seen that the axial force is 101283N calculated according to the formula GB/T5371. The finite element result differs from the theoretical calculation result by 3289N, which is 3% of the theoretical calculation result. The result of the finite element, which is affected by the grid accuracy and the contact stiffness, is consistent with the expected result and may be slightly less than the theoretical result. Increasing grid accuracy and contact stiffness reduces the difference from theoretical results, but consumes more computational resources, and actual engineering calculations typically have a larger safety factor, with a 3% difference being acceptable. The result of finite element from the actual numerical ratio is consistent with the theoretical result. It can be stated that the finite element loading scheme described above is reasonable.
Example III
Fig. 6 is a schematic flow chart of a calculation method of an interference coupling transmission load according to a third embodiment of the present invention. The present embodiment describes the present invention based on the inclusion member and the inclusion member being irregularly cylindrical. As shown in fig. 6, the method includes:
and S31, respectively establishing a container and a contained part model by utilizing three-dimensional modeling software.
The modeling can be performed according to the actual machining size of the containing part and the contained part, and also can be performed according to the maximum interference or the minimum interference.
And step S32, introducing the inclusion and the inclusion model into a finite element statics module.
And step S33, setting the contact type of the containing member and the contained member as friction, and setting the friction coefficient and penetration tolerance according to actual conditions.
Step S34, setting a boundary condition: fixing the end face of one side of the contained part and setting the axial displacement of one side of the contained part.
Step S35, the displacement is set in a step loading mode.
The sub-setting of the software is opened and the minimum number of sub-steps should be greater than 10 steps.
Step S36, dividing grids.
Step S37, solving.
And S38, extracting the branch counterforce at the axial displacement boundary of the containing member to obtain a branch counterforce curve.
And S39, extracting a constant value of the ordinate value to obtain a maximum axial force value transmitted by the interference connection.
Specifically, if the ordinate does not have a constant value, it is indicated that the axial displacement of the containing member in step S34 is set too small, and should be adjusted to be increased; if the curve ordinate constant is unstable and the numerical fluctuation occurs, the process returns to step S33 to readjust the set osmotic tolerance value.
In addition, for the calculation of the interference connection torque of the irregular cylindrical matching piece, the calculation steps are basically the same as those of the method, and the maximum torque which can be transmitted by the interference connection can be obtained only by modifying the axial displacement in the corresponding step into the angular displacement rotating around the axis.
Example IV
Fig. 7 shows a schematic structural diagram of a computing device for transmitting load through interference coupling according to a third embodiment of the present invention. As shown in fig. 7, the apparatus includes: a model building module 41, a finite element module 42, and a load acquisition module 43; wherein, the liquid crystal display device comprises a liquid crystal display device,
the model building module 41 is used for building a container model according to containers and building a contained part model according to contained parts;
the finite element module 42 is configured to perform a hydrostatic finite element analysis on the container model and the contained member model, and determine a branch reaction curve at a boundary of the contained member based on a contact type and a boundary condition of the contained member and the contained member;
the load acquisition module 43 is configured to acquire a load transmitted by the interference coupling structure from the branch reaction force curve.
Further, the finite element module 42 is specifically configured to: in response to a first user operation, acquiring the contact type of the containing member and the contained member as friction; responding to a second user operation, and acquiring boundary conditions; meshing the containing member and the contained member and solving; and extracting the branch counter force at the boundary of the containing member to obtain a branch counter force curve.
Further, the load obtaining module 43 is specifically configured to: and extracting a constant value of a longitudinal coordinate value in the branch counter force curve, and taking the constant value as a load transmitted by the interference connection structure.
Further, the boundary conditions are: fixing the end face of one side of the contained part, and setting the axial displacement of one side of the contained part;
correspondingly, the load is the maximum axial force value.
Further, the boundary conditions are:
fixing the end face of one side of the contained part, and setting the angular displacement of one side of the contained part rotating around the axis;
correspondingly, the load is the maximum torque.
Further, after the obtaining that the type of contact of the container with the contained piece is friction in response to the first user operation, the apparatus further includes: a friction coefficient acquisition module 44; wherein, the liquid crystal display device comprises a liquid crystal display device,
the coefficient of friction acquisition module 44 is configured to acquire a coefficient of friction and a penetration tolerance in response to a third user operation.
Further, the load obtaining module 43 is specifically configured to: respectively establishing a container and a contained part model according to the actual sizes of the contained part and the contained part; or respectively establishing a container and a contained part model according to the maximum interference or the minimum interference.
The calculation device for interference coupling transmission load according to the present embodiment is used for executing the calculation methods for interference coupling transmission load according to the first, second and third embodiments, and the working principle is similar to the technical effect, and is not repeated here.
Example five
A fifth embodiment of the present invention provides a non-volatile computer storage medium, where at least one executable instruction is stored, where the computer executable instruction may perform the method for calculating the interference coupling transmission load in any of the foregoing method embodiments.
Example six
Fig. 8 is a schematic structural diagram of an electronic device according to a sixth embodiment of the present invention. The specific embodiments of the present invention are not limited to specific implementations of electronic devices.
As shown in fig. 8, the electronic device may include: a processor 502, a communication interface 504, a memory 506, and a communication bus 508.
Wherein: processor 502, communication interface 504, and memory 506 communicate with each other via communication bus 508. A communication interface 504 for communicating with network elements of other devices, such as clients or other servers. The processor 502 is configured to execute the program 510, and may specifically perform relevant steps in the method embodiments described above.
In particular, program 510 may include program code including computer-operating instructions.
The processor 502 may be a central processing unit CPU, or an application specific integrated circuit ASIC, or one or more integrated circuits configured to implement embodiments of the present invention. The one or more processors included in the electronic device may be the same type of processor, such as one or more CPUs; but may also be different types of processors such as one or more CPUs and one or more ASICs.
A memory 506 for storing a program 510. Memory 506 may comprise high-speed RAM memory, and may also include non-volatile memory, such as at least one disk memory.
Program 510 may be specifically configured to cause processor 502 to perform the method of calculating interference coupling transfer loads in any of the method embodiments described above.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general-purpose systems may also be used with the teachings herein. The required structure for a construction of such a system is apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It will be appreciated that the teachings of the present invention described herein may be implemented in a variety of programming languages, and the above description of specific languages is provided for disclosure of enablement and best mode of the present invention.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the above description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed as reflecting the intention that: i.e., the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the apparatus of the embodiments may be adaptively changed and disposed in one or more apparatuses different from the embodiments. The modules or units or components of the embodiments may be combined into one module or unit or component and, furthermore, they may be divided into a plurality of sub-modules or sub-units or sub-components. Any combination of all features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or units of any method or apparatus so disclosed, may be used in combination, except insofar as at least some of such features and/or processes or units are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.
Various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that some or all of the functionality of some or all of the components according to embodiments of the present invention may be implemented in practice using a microprocessor or Digital Signal Processor (DSP). The present invention can also be implemented as an apparatus or device program (e.g., a computer program and a computer program product) for performing a portion or all of the methods described herein. Such a program embodying the present invention may be stored on a computer readable medium, or may have the form of one or more signals. Such signals may be downloaded from an internet website, provided on a carrier signal, or provided in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specifically stated.
Claims (10)
1. A method of calculating an interference coupling transfer load, comprising:
establishing a container model according to the container, and establishing a contained part model according to the contained part; wherein the structure shape of the containing member and the contained member is irregular cylindrical;
carrying out statics finite element analysis on the container model and the contained part model, and determining a branch reaction curve at the boundary of the container based on the contact type and boundary condition of the container and the contained part;
acquiring the load transmitted by the interference coupling structure from the branch reaction curve;
wherein the method further comprises:
setting the boundary conditions in a step-by-step loading mode, and capturing the maximum counter force according to the boundary conditions; wherein the maximum counter force corresponds to the load.
2. The method of calculating an interference coupling transfer load according to claim 1, wherein the determining a branch reaction curve at the container boundary based on the contact type of the container with the contained member and boundary conditions includes:
in response to a first user operation, acquiring the contact type of the containing member and the contained member as friction;
responding to a second user operation, and acquiring boundary conditions;
meshing the containing member and the contained member and solving;
and extracting the branch counter force at the boundary of the containing member to obtain a branch counter force curve.
3. The method for calculating the load transmitted by the interference coupling according to claim 1, wherein the step of obtaining the load transmitted by the interference coupling structure from the branch reaction curve comprises the following steps:
and extracting a constant value of a longitudinal coordinate value in the branch counter force curve, and taking the constant value as a load transmitted by the interference connection structure.
4. The method of calculating an interference coupling transfer load according to claim 1, wherein the boundary condition is: fixing the end face of one side of the contained part, and setting the axial displacement of one side of the contained part;
correspondingly, the load is the maximum axial force value.
5. The method of calculating an interference coupling transfer load according to claim 1, wherein the boundary condition is:
fixing the end face of one side of the contained part, and setting the angular displacement of one side of the contained part rotating around the axis;
correspondingly, the load is the maximum torque.
6. The method of calculating an interference coupling transfer load according to claim 2, wherein after the obtaining that the type of contact of the female member with the female member is friction in response to the first user operation, the method further comprises:
in response to a third user operation, a coefficient of friction and penetration tolerance are obtained.
7. The method of calculating the interference coupling transfer load according to any one of claims 1 to 6, wherein establishing the female and female member models, respectively, includes:
respectively establishing a container and a contained part model according to the actual sizes of the contained part and the contained part; or (b)
And respectively establishing a container and a contained part model according to the maximum interference or the minimum interference.
8. A computing device for interference coupling transfer of a load, comprising:
the model building module is used for building a container model according to the container and building a contained part model according to the contained part; wherein the structure shape of the containing member and the contained member is irregular cylindrical;
the finite element module is used for carrying out statics finite element analysis on the container model and the contained part model, and determining a branch reaction curve at the boundary of the container based on the contact type and boundary condition of the container and the contained part;
the load acquisition module is used for acquiring the load transmitted by the interference coupling structure from the branch reaction curve;
the finite element module is further used for setting the boundary conditions in a step-by-step loading mode, and capturing the maximum counter force according to the boundary conditions; wherein the maximum counter force corresponds to the load.
9. An electronic device, comprising: the device comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete communication with each other through the communication bus;
the memory is configured to store at least one executable instruction that causes the processor to perform operations corresponding to the method of calculating an interference coupling transfer load according to any one of claims 1-7.
10. A computer storage medium having stored therein at least one executable instruction for causing a processor to perform operations corresponding to the method of calculating an interference coupled transfer load according to any one of claims 1-7.
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