JOINT OPTIMIZATION OF TOPOLOGY AND SIZE BASED ON MODAL ANALYSIS OF 750 POWER HEAD GEARBOX (MT)

LUO QingYi; MEI Qi; HU XiaoBing; LI-HE YuQiu

doi:10.16579/j.issn.1001.9669.2022.06.013

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JOINT OPTIMIZATION OF TOPOLOGY AND SIZE BASED ON MODAL ANALYSIS OF 750 POWER HEAD GEARBOX (MT)

更新时间：2023-06-09

- JOINT OPTIMIZATION OF TOPOLOGY AND SIZE BASED ON MODAL ANALYSIS OF 750 POWER HEAD GEARBOX (MT)
- Journal of Mechanical Strength Issue 6, Pages: 1357-1364(2022)
- 作者机构：
  
  1. 四川大学机械工程学院
  2. 宜宾四川大学产业技术研究院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2022.06.013
  CLC：
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LUO QingYi, MEI Qi, HU XiaoBing, et al. JOINT OPTIMIZATION OF TOPOLOGY AND SIZE BASED ON MODAL ANALYSIS OF 750 POWER HEAD GEARBOX (MT). [J]. Journal of Mechanical Strength (6):1357-1364(2022)
DOI：

LUO QingYi, MEI Qi, HU XiaoBing, et al. JOINT OPTIMIZATION OF TOPOLOGY AND SIZE BASED ON MODAL ANALYSIS OF 750 POWER HEAD GEARBOX (MT). [J]. Journal of Mechanical Strength (6):1357-1364(2022) DOI： 10.16579/j.issn.1001.9669.2022.06.013.

摘要

针对动力头变速箱体质量分配不均且质量过大，第一阶固有频率与第二级齿轮传动产生的激励频率较接近的问题，采用Ansys Workbench仿真平台Genesis模块对变速箱进行模态拓扑分析，基于拓扑优化得到的待优化尺寸，通过目标驱动优化工具对变速箱体进行尺寸优化，在对变速箱体的强度和刚度没有影响的情况下，质量减轻了12.9%,第一阶固有频率增加了11.0%,达到减重和提高第一阶固有频率的双重目的。研究成果对节约制造成本和对产品的性能提升具有实际指导意义。

Abstract

In view of the uneven mass distribution and the excessive weight of the power head gearbox bodies, and the first-order natural frequency is close to the excitation frequency generated by the second-stage gear transmission. The Genesis module in the Ansys Workbench simulation platform was used to analyze the modal topology of the gearbox. Based on the size to be optimized obtained from the topology optimization, the gearbox body was optimized by the target drive optimization tool. Without affecting the strength and rigidity of the gearbox body, the mass was reduced by 12.9%, and the first-order natural frequency was increased by 10.9%, which achieved the dual purpose of reducing weight and increasing the first-order natural frequency. The research results have practical guiding significance for saving manufacturing costs and improving product performance.

关键词

动力头变速箱模态分析拓扑优化尺寸优化固有频率

Keywords

Power head gearboxModal analysisTopology optimizationSize optimizationNatural frequency

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