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| 摩托车用发动机连杆弯曲及断裂故障原因动力学分析 | |
| 引用本文： | 何昌德,杨普新,陈富仁.摩托车用发动机连杆弯曲及断裂故障原因动力学分析[J].小型内燃机与摩托车,2011,40(6):89-92,96. |
| 作者姓名： | 何昌德 杨普新 陈富仁 |
| 作者单位： | 1. 台州科技职业学院 浙江台州318020 2. 吉利汽车研究院发动机研究所 3. 浙江弘州摩托车有限公司 |
| 摘 要： | 本研究以摩托车用发动机为对象,利用内燃机连杆机构的模拟动力学模型对单缸发动机连杆出现的弯曲及断裂问题进行受力分析.通过计算连杆压缩力、燃烧室总压力、往复运动的惯性力及连杆承受的弯矩等来比较目前市场常用的四种机型连杆在工作状态所受的总应力及强度储备安全系数,发现四种机型连杆的强度储备安全系数普遍偏小,特别是152QMI发动机连杆在靠近连杆小头孔处部位更易产生弯曲或断裂.本研究为发动机连杆的设计、质量改正及故障分析提供了科学依据. |
| 关 键 词： | 连杆 动力学模型 受力分析 强度安全系数 |
Dynamic Analysis of Motorcycle Engine Rod Bending and Fracture Failure |
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| He Changde , Yang Pnxin , Chen Furen.Dynamic Analysis of Motorcycle Engine Rod Bending and Fracture Failure[J].Small Internal Combustion Engine and Motorcycle,2011,40(6):89-92,96. | |
| Authors: | He Changde Yang Pnxin Chen Furen |
| Affiliation: | 1 -Taizhou Vocational College of Science and Technology (Taizhou, Zhejiang, 318020, China) 2 - Geely Automobile Engine Research Institute 3 - Hongzhou Motorcycle Co. , Ltd. Zhejiang) |
| Abstract: | This article mainly talks about motorcycle engines, the use of internal combustion engine simulation linkage dynamic model of single-cylinder engine connecting rod bending and fracture mechanical analysis. By calculating the connecting rod compression, combustion chamber total pressure, the inertial force of reciproca-ting motion and the other connecting rod to withstand the bending moment the four models commonly used in the current market are compared in working status. It＇s found that the safety factors of strength reserves of the four models are generally small, especially the small end of 152QMI engine connecting rod that the hole is nearby. This study puts forward a scientific basis for the engine connecting rod design, quality correction and fault analysis. |
| Keywords: | Connecting rod Dynamics model Stress analysis of strength Safety factor |
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