一种驱动柴油机机体三维设计的五级骨架建立方法

By introducing an improved cubic complex set into the 3D design space of the diesel engine block using an improved cubic complex method, the problems of inconsistent constraint expression and overall mismatch caused by modifications in the 3D design of the diesel engine block are solved. This enables the collaborative establishment of the five-level skeleton and the stable output of design results, thereby improving the efficiency and consistency of the design process.

CN122174405BActive Publication Date: 2026-07-17CHINA NORTH ENGINE INST TIANJIN

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NORTH ENGINE INST TIANJIN
Filing Date
2026-05-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, the three-dimensional design of diesel engine blocks has problems such as design sequence relying on human experience, difficulty in uniformly expressing constraints at different levels, and local modifications easily causing overall mismatch. This results in discontinuous constraint transmission, inaccurate conflict location, and low efficiency of linkage correction, making it difficult to meet the requirements of five-level skeleton collaborative establishment and stable output of overall design results.

Method used

An improved cubic complex method is adopted. By introducing an improved cubic complex set into the three-dimensional design space of the diesel engine body, and writing hierarchical belonging markers, constraint projection markers and convergence response markers into each cubic complex, a unified expression and correction of overall layout, fastener interfaces, component installation, component processing and part feature constraints are achieved, generating a five-level skeleton.

Benefits of technology

It improves the orderliness, consistency and computability of the three-dimensional parametric design of diesel engine blocks, enhances modeling efficiency and linkage correction efficiency, ensures the correspondence, interface coordination and structural connectivity between the five-level skeletons, and realizes the standardization and stabilization of the three-dimensional design of diesel engine blocks.

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Abstract

本发明公开了一种驱动柴油机机体三维设计的五级骨架建立方法,包括如下步骤:获取柴油机机体三维参数化设计任务数据并生成机体设计输入集;构建柴油机机体三维设计空间并生成改进立方复形集合;基于总体布局约束生成总体布局约束分布结果;基于固定件接口约束生成固定件接口约束分布结果;基于组件安装约束生成组件安装约束分布结果;基于部件加工约束生成部件加工约束分布结果;基于零件特征约束生成零件特征约束分布结果;执行跨层约束传播、同层边界收敛和冲突响应修正生成五级骨架;执行校核生成校核结果,输出柴油机机体三维参数化设计结果。本发明采用改进立方复形方法,实现柴油机机体五级骨架设计,具有联动性强、效率高的优点。
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