CAE Analysis and Optimization Design of Dual Fuel Engine Connecting Rod

蒋爱香; 赵建平; 张旭东; 徐荣; 苏展望; 于佳

doi:10.13949/j.cnki.nrjgc.2019.06.013

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CAE Analysis and Optimization Design of Dual Fuel Engine Connecting Rod

更新时间：2026-04-16

- CAE Analysis and Optimization Design of Dual Fuel Engine Connecting Rod
- Vol. 40, Issue 6, Pages: 86-92(2019)
- 作者机构：
  
  1. 陕西柴油机重工有限公司，兴平,713105
  2. 船舶与海洋工程动力系统国家工程实验室,上海,201108
- 作者简介：
- 基金信息：
- DOI：10.13949/j.cnki.nrjgc.2019.06.013
  CLC：
- Published：2019
- 稿件说明：
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蒋爱香，赵建平，张旭东，徐荣，苏展望，于佳.某双燃料发动机的连杆CAE分析及优化设计[J].内燃机工程,2019,40(6):86-92.

蒋爱香, 赵建平, 张旭东, et al. CAE Analysis and Optimization Design of Dual Fuel Engine Connecting Rod[J]. 2019, 40(6): 86-92.
蒋爱香，赵建平，张旭东，徐荣，苏展望，于佳.某双燃料发动机的连杆CAE分析及优化设计[J].内燃机工程,2019,40(6):86-92. DOI： 10.13949/j.cnki.nrjgc.2019.06.013.

蒋爱香, 赵建平, 张旭东, et al. CAE Analysis and Optimization Design of Dual Fuel Engine Connecting Rod[J]. 2019, 40(6): 86-92. DOI： 10.13949/j.cnki.nrjgc.2019.06.013.

摘要

针对某型号天然气/柴油双燃料发动机，在其连杆的设计和开发过程中，运用ABAQUS和FEMFAT软件对连杆进行CAE分析，原设计连杆接触分析显示接触开度不满足安全要求。为此对连杆进行优化设计，优化后的连杆CAE分析表明：连杆杆身与大端接触面采用弧形设计能有效解决连杆接触开度问题，且优化后的连杆变形、接触应力及高周疲劳（high cycle fatigue

HCF）强度都在许用范围之内，满足设计安全需要。这一结论可为提高双燃料发动机的设计安全性提供有效的科学方法和可靠的理论依据，并为后续连杆装机验证提供有力的理论支撑。

Abstract

CAE analysis and optimization design of the safety of connecting rod contact opening were carried out by using the ABAQUS and FEMFAT software. Results show that the arc-shaped design of the bottom of the connecting rod shank can effectively solve the unsafe problem of the connecting rod contact opening

and the optimized connecting rod deformation

contact stress and high-cycle fatigue strength are within the allowable range

thus meeting the requirements of safety design. This conclusion can provide an effective scientific method and reliable theoretical basis for improving the safety of dual fuel engines

and create good conditions for the installation test of connecting rods in the future.

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