CN106354913A - Parametric design platform for helical gear drive system and application method thereof - Google Patents
Parametric design platform for helical gear drive system and application method thereof Download PDFInfo
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Abstract
本发明公开了一种用于斜齿轮传动系统参数化设计平台及使用方法，平台包括三个模块，分别是斜齿轮参数化设计模块、斜齿轮实例和设计规则数据库模块、斜齿轮实例和设计规则数据挖掘模块。其中，在斜齿轮参数化设计模块中，利用ABAQUS得到INP文件，进而实现自动化建模及有限元网格划分；斜齿轮实例和设计规则数据库模块为本平台数据存储中心；斜齿轮实例和设计规则数据挖掘模块为数据挖掘技术应用层，根据设计要求检索数据存储中心，提取相似模型数据，为新产品的设计研发提供所需技术支持。
The invention discloses a parametric design platform for a helical gear transmission system and a use method thereof. The platform includes three modules, namely a helical gear parametric design module, a helical gear instance and design rule database module, a helical gear instance and design rules Data mining module. Among them, in the helical gear parametric design module, use ABAQUS to obtain the INP file, and then realize automatic modeling and finite element mesh division; the helical gear example and design rule database module is the data storage center of this platform; the helical gear example and design rule The data mining module is the application layer of data mining technology, which retrieves the data storage center according to the design requirements, extracts similar model data, and provides the required technical support for the design and development of new products.
Description
技术领域technical field
本发明属于斜齿轮参数化设计技术领域，特别涉及一种用于斜齿轮传动系统参数化设计平台及使用方法。The invention belongs to the technical field of parametric design of helical gears, and in particular relates to a parametric design platform for a helical gear transmission system and a using method.
背景技术Background technique
斜齿轮传动作为机械传动中一种重要的传动方式，它被广泛用于交通运输，机器制造，航空航天等各领域中，因此斜齿轮的设计质量对整个齿轮传动系统的性能起着至关重要的作用，传统的斜齿轮设计方法是一件较为繁琐且重复量大的工作。As an important transmission mode in mechanical transmission, helical gear transmission is widely used in transportation, machine manufacturing, aerospace and other fields, so the design quality of helical gear plays a vital role in the performance of the entire gear transmission system The role of the traditional helical gear design method is a relatively cumbersome and repetitive work.
目前大部分产品的设计与研发，一般都是以原有产品设计为基础，经过再次创新而来的，并且大约75％左右的原有产品中的设计信息会在新产品的设计中得以延续，参数化设计技术就是在这样一个背景下而生。At present, the design and R&D of most products are generally based on the original product design, after re-innovation, and about 75% of the design information in the original product will be continued in the design of the new product. Parametric design technology was born under such a background.
现代化的设计方法，可以完成对斜齿轮传动系统的虚拟装配、运动仿真、结构分析和优化设计等，简化设计过程，降低工作量；而快速高效的建立斜齿轮的精确三维模型，则是实现这一过程的前提条件；斜齿轮精确三维模型的建立需要求解正确的理论齿形，为了能够缩短设计周期，实现斜齿轮模型快速且精确建立，这样就需要对斜齿轮进行参数化设计。The modern design method can complete the virtual assembly, motion simulation, structural analysis and optimization design of the helical gear transmission system, simplify the design process and reduce the workload; and the rapid and efficient establishment of an accurate 3D model of the helical gear is to achieve this. A prerequisite for the process; the establishment of an accurate three-dimensional model of the helical gear needs to solve the correct theoretical tooth shape. In order to shorten the design cycle and realize the fast and accurate establishment of the helical gear model, it is necessary to parametrically design the helical gear.
发明内容Contents of the invention
本发明要解决的技术问题为：是为了克服现有技术的上述缺陷，提出了一种用于斜齿轮传动系统参数化设计平台及使用方法，缩短了产品的设计和研发周期，适应了现代产品设计快速发展的节奏，为新产品的研发提供了参考依据。The technical problem to be solved by the present invention is: in order to overcome the above-mentioned defects of the prior art, a parametric design platform and application method for the helical gear transmission system are proposed, which shortens the product design and development cycle and adapts to modern products The rhythm of rapid development of the design provides a reference for the development of new products.
本发明采用的技术方案为：一种用于斜齿轮传动系统参数化设计平台，所述用于斜齿轮传动系统参数化设计平台包括斜齿轮参数化设计模块、斜齿轮实例和设计规则数据库模块、斜齿轮实例和设计规则数据挖掘模块；其中：The technical scheme adopted in the present invention is: a parametric design platform for helical gear transmission system, said platform for parametric design of helical gear transmission system includes helical gear parametric design module, helical gear instance and design rule database module, Helical gear example and design rule data mining module; where:
所述的斜齿轮参数化设计模块，利用该模块可以得到支持斜齿轮在CAD环境中参数化建模所需的所有齿轮点，导入ABAQUS可以得到斜齿轮有限元分析所需的INP文件，利用INP文件可以实现斜齿轮在ABAQUS环境中自动化建模及有限元网格的自动划分功能；The parametric design module of the helical gear can be used to obtain all the gear points required to support the parametric modeling of the helical gear in the CAD environment, import ABAQUS to obtain the INP file required for the finite element analysis of the helical gear, and use the INP The file can realize the automatic modeling of the helical gear in the ABAQUS environment and the automatic division of the finite element mesh;
所述的斜齿轮实例和设计规则数据库模块为本系统数据存储中心，负责斜齿轮模型计算和分析，为挖掘技术应用层提供数据库搜索支持；The helical gear example and design rule database module is the data storage center of the system, which is responsible for the calculation and analysis of the helical gear model, and provides database search support for the mining technology application layer;
斜齿轮实例和设计规则数据挖掘模块为数据挖掘技术应用层，根据设计要求检索数据存储中心，提取相似模型数据，为新产品的设计研发提供所需数据支持。The helical gear example and design rule data mining module is the application layer of data mining technology, which retrieves the data storage center according to the design requirements, extracts similar model data, and provides the required data support for the design and development of new products.
其中，所述的斜齿轮参数化设计模块为人机进行交互的桥梁，采用VS2008MFC单文档应用程序设计本平台用户界面。Wherein, the helical gear parametric design module is a bridge for human-computer interaction, and the user interface of this platform is designed by using VS2008MFC single-document application program.
其中，所述的斜齿轮参数化设计模块涉及的主要功能函数有动态分配内存函数、基本参数计算函数、齿轮方程计算函数、数据存储函数和总函数。Wherein, the main functional functions involved in the parametric design module of the helical gear include a dynamic memory allocation function, a basic parameter calculation function, a gear equation calculation function, a data storage function and a total function.
本发明还提供一种用于斜齿轮传动系统参数化设计平台的使用方法，利用上述的用于斜齿轮传动系统参数化设计平台，该平台的使用方法包括以下步骤：The present invention also provides a method for using a parametric design platform for a helical gear transmission system. Using the above-mentioned parametric design platform for a helical gear transmission system, the method for using the platform includes the following steps:
步骤(1)、确定齿轮的基本参数；Step (1), determine the basic parameter of gear;
步骤(2)、生成INP文件；Step (2), generate INP file;
步骤(3)、修形前后斜齿轮啮合性能比较。Step (3), comparing the meshing performance of the helical gear before and after modification.
本发明的原理在于：Principle of the present invention is:
一种用于斜齿轮传动系统参数化设计平台及使用方法，如图1所示，其特征在于：A parametric design platform for a helical gear transmission system and a method of use, as shown in Figure 1, characterized in that:
斜齿轮传动系统参数化设计平台包括斜齿轮参数化设计模块、斜齿轮实例和设计规则数据库模块、斜齿轮实例和设计规则数据挖掘模块；The parametric design platform of helical gear transmission system includes helical gear parametric design module, helical gear example and design rule database module, helical gear example and design rule data mining module;
所述的斜齿轮参数化设计模块，利用该模块可以得到支持斜齿轮在CAD环境中参数化建模所需的所有齿轮点，导入ABAQUS可以得到斜齿轮有限元分析所需的INP文件，利用INP文件可以实现斜齿轮在ABAQUS环境中自动化建模及有限元网格的自动划分功能；The parametric design module of the helical gear can be used to obtain all the gear points required to support the parametric modeling of the helical gear in the CAD environment, import ABAQUS to obtain the INP file required for the finite element analysis of the helical gear, and use the INP The file can realize the automatic modeling of the helical gear in the ABAQUS environment and the automatic division of the finite element mesh;
所述的斜齿轮参数化设计模块为人机进行交互的桥梁，采用VS2008MFC单文档应用程序设计本平台用户界面，如图2和图3所示；The helical gear parametric design module is a bridge for human-computer interaction, and the user interface of this platform is designed by using VS2008MFC single-document application program, as shown in Figure 2 and Figure 3;
所述的斜齿轮参数化设计模块涉及的主要功能函数有动态分配内存函数、基本参数计算函数、齿轮方程计算函数、数据存储函数和总函数；The main functional functions involved in the parametric design module of the helical gear include a dynamic memory allocation function, a basic parameter calculation function, a gear equation calculation function, a data storage function and a total function;
所述的动态分配内存函数，该函数主要功能是齿轮点计算存储时，分配计算机内存，建立齿轮点数据动态存储空间，方便计算数据的存储和调用，如下述代码所示为斜齿轮轮廓方程建立一段动态分配内存过程：The function of dynamically allocating memory, the main function of this function is to allocate computer memory when calculating and storing gear points, and establish a dynamic storage space for gear point data, so as to facilitate the storage and calling of calculation data. A process of dynamically allocating memory:
所述的基本参数计算函数是利用已知给定的设计参数计算其他函数的公用函数，如已知的模数、齿数、压力角等，不仅可以减轻代码编写的工具量，而且可以提高代码使用效率；The basic parameter calculation function is a public function for calculating other functions using known given design parameters, such as known modulus, number of teeth, pressure angle, etc., which can not only reduce the amount of tools for code writing, but also improve the use of code efficiency;
所述的齿轮方程计算函数是计算斜齿轮有关的所有的数据，包括齿廓方程、齿面方程、轮齿内部所有点方程计算。在计算中，需要将结果暂时存储在上述的动态存储空间中，如下所示为一个点用四维数组的表示方法，其中0、1、2表示坐标X、Y、Z，tp1、tp2、tp3则表示该空间位置信息；The gear equation calculation function is to calculate all the data related to the helical gear, including the calculation of tooth profile equation, tooth surface equation, and all point equations inside the gear teeth. In the calculation, the result needs to be temporarily stored in the above-mentioned dynamic storage space, as shown below, a point is represented by a four-dimensional array, where 0, 1, and 2 represent coordinates X, Y, and Z, and tp1, tp2, and tp3 are Indicates the spatial location information;
S[tp1][tp2][tp3][0]＝XS[tp1][tp2][tp3][0]=X
S[tp1][tp2][tp3][1]＝YS[tp1][tp2][tp3][1]=Y
S[tp1][tp2][tp3][2]＝ZS[tp1][tp2][tp3][2]=Z
所述的数据存储函数主要功能是将计算的斜齿轮模型数据及有限元网格数据保存为规定的文件格式。本平台默认文件格式为“.inp”，如下所示基本过程：The main function of the data storage function is to save the calculated helical gear model data and finite element grid data in a specified file format. The default file format of this platform is ".inp", the basic process is as follows:
Ofstream对象名称(“文件名称.inp”)；Ofstream object name("filename.inp");
对象名称《X《Y《Z《endl；object name<X<Y<Z<endl;
对象名称.cose()；objectName.cose();
所述的总函数主要功能是调用上述各功能函数，输入基本设计参数，完成系统计算和数据输出的过程；The main function of the total function is to call the above-mentioned functional functions, input the basic design parameters, and complete the process of system calculation and data output;
所述的斜齿轮实例和设计规则数据库模块为本系统数据存储中心，负责斜齿轮模型计算和分析，为挖掘技术应用层提供数据库搜索支持；The helical gear example and design rule database module is the data storage center of the system, which is responsible for the calculation and analysis of the helical gear model, and provides database search support for the mining technology application layer;
斜齿轮实例和设计规则数据挖掘模块为数据挖掘技术应用层，根据设计要求检索数据存储中心，提取相似模型数据，为新产品的设计研发提供所需数据支持。The helical gear example and design rule data mining module is the application layer of data mining technology, which retrieves the data storage center according to the design requirements, extracts similar model data, and provides the required data support for the design and development of new products.
本发明与现有技术相比的优点在于：The advantage of the present invention compared with prior art is:
(1)、本发明采用参数化设计手段将传统繁琐且重复的斜齿轮设计方法大大简化，降低了工作量；(1), the present invention greatly simplifies the traditional cumbersome and repetitive helical gear design method by means of parametric design, reducing the workload;
(2)、本发明结合虚拟装配、运动仿真、结构分析和优化设计等CAD/CAE手段，使得设计更加精准，降低了成本，避免了不必要的浪费。(2) The present invention combines CAD/CAE means such as virtual assembly, motion simulation, structural analysis and optimal design to make the design more accurate, reduce the cost, and avoid unnecessary waste.
附图说明Description of drawings
图1为本发明系统平台模块框图示意图；Fig. 1 is a block diagram schematic diagram of the system platform module of the present invention;
图2为本发明用户界面截图1示意图；Fig. 2 is a schematic diagram of screenshot 1 of the user interface of the present invention;
图3为本发明用户界面截图2示意图；Fig. 3 is a schematic diagram of screenshot 2 of the user interface of the present invention;
图4为本发明参数确定流程示意图；Fig. 4 is a schematic flow chart of parameter determination in the present invention;
图5为本发明斜齿轮Mises应力分析截图示意图；Fig. 5 is a schematic diagram of a screenshot of the Mises stress analysis of the helical gear of the present invention;
图6为本发明斜齿轮接触应力CPRESS分析截图示意图；Fig. 6 is a schematic diagram of a screenshot of the helical gear contact stress CPRESS analysis of the present invention;
图7为本发明斜齿轮接触合力CFNM分析截图示意图。Fig. 7 is a schematic diagram of a screenshot of CFNM analysis of helical gear contact resultant force of the present invention.
具体实施方式detailed description
为了清楚说明本方案的技术特点，下面通过一个具体的实施方式，并结合其附图对本方案进行阐述。In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation mode and in conjunction with the accompanying drawings.
本发明一种用于斜齿轮传动系统参数化设计平台，包括斜齿轮传动系统参数化设计平台包括斜齿轮参数化设计模块、斜齿轮实例和设计规则数据库模块、斜齿轮实例和设计规则数据挖掘模块；具体的，The present invention is a parametric design platform for helical gear transmission system, including helical gear transmission system parametric design platform including helical gear parametric design module, helical gear instance and design rule database module, helical gear instance and design rule data mining module ;specific,
所述的斜齿轮参数化设计模块，利用该模块可以得到支持斜齿轮在CAD环境中参数化建模所需的所有齿轮点，导入ABAQUS可以得到斜齿轮有限元分析所需的INP文件，利用INP文件可以实现斜齿轮在ABAQUS环境中自动化建模及有限元网格的自动划分功能；The parametric design module of the helical gear can be used to obtain all the gear points required to support the parametric modeling of the helical gear in the CAD environment, import ABAQUS to obtain the INP file required for the finite element analysis of the helical gear, and use the INP The file can realize the automatic modeling of the helical gear in the ABAQUS environment and the automatic division of the finite element mesh;
所述的斜齿轮参数化设计模块为人机进行交互的桥梁，采用VS2008MFC单文档应用程序设计本平台用户界面，如图2和图3所示；The helical gear parametric design module is a bridge for human-computer interaction, and the user interface of this platform is designed by using VS2008MFC single-document application program, as shown in Figure 2 and Figure 3;
所述的斜齿轮参数化设计模块涉及的主要功能函数有动态分配内存函数、基本参数计算函数、齿轮方程计算函数、数据存储函数和总函数；The main functional functions involved in the parametric design module of the helical gear include a dynamic memory allocation function, a basic parameter calculation function, a gear equation calculation function, a data storage function and a total function;
所述的动态分配内存函数，该函数主要功能是齿轮点计算存储时，分配计算机内存，建立齿轮点数据动态存储空间，方便计算数据的存储和调用，如下述代码所示为斜齿轮轮廓方程建立一段动态分配内存过程：The function of dynamically allocating memory, the main function of this function is to allocate computer memory when calculating and storing gear points, and establish a dynamic storage space for gear point data, so as to facilitate the storage and calling of calculation data. A process of dynamically allocating memory:
所述的基本参数计算函数是利用已知给定的设计参数计算其他函数的公用函数，如已知的模数、齿数、压力角等，不仅可以减轻代码编写的工具量，而且可以提高代码使用效率；The basic parameter calculation function is a public function for calculating other functions using known given design parameters, such as known modulus, number of teeth, pressure angle, etc., which can not only reduce the amount of tools for code writing, but also improve the use of code efficiency;
所述的齿轮方程计算函数是计算斜齿轮有关的所有的数据，包括齿廓方程、齿面方程、轮齿内部所有点方程计算。在计算中，需要将结果暂时存储在上述的动态存储空间中，如下所示为一个点用四维数组的表示方法，其中0、1、2表示坐标X、Y、Z，tp1、tp2、tp3则表示该的空间位置信息；The gear equation calculation function is to calculate all the data related to the helical gear, including the calculation of tooth profile equation, tooth surface equation, and all point equations inside the gear teeth. In the calculation, the result needs to be temporarily stored in the above-mentioned dynamic storage space, as shown below, a point is represented by a four-dimensional array, where 0, 1, and 2 represent coordinates X, Y, and Z, and tp1, tp2, and tp3 are Indicates the spatial location information of the
S[tp1][tp2][tp3][0]＝XS[tp1][tp2][tp3][0]=X
S[tp1][tp2][tp3][1]＝YS[tp1][tp2][tp3][1]=Y
S[tp1][tp2][tp3][2]＝ZS[tp1][tp2][tp3][2]=Z
所述的数据存储函数主要功能是将计算的斜齿轮模型数据及有限元网格数据保存为规定的文件格式。本平台默认文件格式为“.inp”，如下所示基本过程：The main function of the data storage function is to save the calculated helical gear model data and finite element grid data in a specified file format. The default file format of this platform is ".inp", the basic process is as follows:
Ofstream对象名称(“文件名称.inp”)；Ofstream object name("filename.inp");
对象名称《X《Y《Z《endl；object name<X<Y<Z<endl;
对象名称.cose()；objectName.cose();
所述的总函数主要功能是调用上述各功能函数，输入基本设计参数，完成系统计算和数据输出的过程；The main function of the total function is to call the above-mentioned functional functions, input the basic design parameters, and complete the process of system calculation and data output;
所述的斜齿轮实例和设计规则数据库模块为本系统数据存储中心，负责斜齿轮模型计算和分析，为挖掘技术应用层提供数据库搜索支持；The helical gear example and design rule database module is the data storage center of the system, which is responsible for the calculation and analysis of the helical gear model, and provides database search support for the mining technology application layer;
斜齿轮实例和设计规则数据挖掘模块为数据挖掘技术应用层，根据设计要求检索数据存储中心，提取相似模型数据，为新产品的设计研发提供所需数据支持；The helical gear instance and design rule data mining module is the data mining technology application layer, which retrieves the data storage center according to the design requirements, extracts similar model data, and provides the required data support for the design and development of new products;
平台使用方法包括以下步骤，如图4所示：The method of using the platform includes the following steps, as shown in Figure 4:
(1)进入系统主界面，根据设计要求，明确设计目标，点击斜齿轮设计实例挖掘；(1) Enter the main interface of the system, specify the design goals according to the design requirements, and click the helical gear design example to mine;
(2)进入实例检索界面，输入目标参数，见表1，点击开始检索；(2) Enter the instance retrieval interface, input the target parameters, see Table 1, and click to start the retrieval;
(3)键入实例检索界面显示结果，与设计目标相似度相近的斜齿轮实例，然后提取相关(3) Key in the example search interface to display the results, helical gear examples with similarity to the design target, and then extract the relevant
实例数据，对比分析，确定几组参数；Instance data, comparative analysis, determine several sets of parameters;
表1斜齿轮设计参数Table 1 Design parameters of helical gears
(4)INP文件生成，基本参数确定之后，点击确定参数按钮，进入有限元网格划分界面，输入网格参数，见表2，点击生成INP文件，在程序目录中会生成斜齿轮INP文件；(4) INP file generation, after the basic parameters are determined, click the OK parameter button to enter the finite element meshing interface, input the mesh parameters, see Table 2, click to generate the INP file, and the helical gear INP file will be generated in the program directory;
表2网格控制参数Table 2 Grid control parameters
(5)修形前后斜齿轮啮合性能比较(5) Comparison of meshing performance of helical gears before and after modification
通过斜齿轮系统计算得到修形前后INP文件，将INP文件依次导入ABAQUS中，按软件操作步骤，完成对斜齿轮材料及截面属性、分析步、接触齿面、载荷及边界条件等的定义，提交作业完成计算，提取Mises应力分析(如图5)、接触应力CPRESS分析(如图6)、接触合力CFNM分析(如图7)结果；Through the calculation of the helical gear system, the INP files before and after the modification are obtained, and the INP files are imported into ABAQUS in sequence, and the definition of the material and section properties, analysis steps, contact tooth surfaces, loads and boundary conditions of the helical gear are completed according to the software operation steps, and submitted. After the calculation is completed, the results of Mises stress analysis (as shown in Figure 5), contact stress CPRESS analysis (as shown in Figure 6), and contact force CFNM analysis (as shown in Figure 7) are extracted;
本发明并不仅限于上述具体实施方式，本领域普通技术人员在本发明的实质范围内做出的变化、改型、添加或替换，也应属于本发明的保护范围。The present invention is not limited to the above-mentioned specific implementation methods, and changes, modifications, additions or substitutions made by those skilled in the art within the essential scope of the present invention should also fall within the protection scope of the present invention.
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