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| 考虑陀螺效应的增压器转子动力特性分析 | |
| 引用本文： | 廖爱华,隋永枫,吴昌华.考虑陀螺效应的增压器转子动力特性分析[J].内燃机工程,2009,30(4). |
| 作者姓名： | 廖爱华 隋永枫 吴昌华 |
| 作者单位： | 1. 上海工程技术大学,城市轨道交通学院,上海,201620 2. 西安交通大学,能源与动力工程学院,西安,710049 3. 大连理工大学,工程力学系,大连,116024 |
| 基金项目： | 上海高校选拔培养青年教师科研专项基金资助，上海市教委重点学科第五期资助 |
| 摘 要： | 借鉴对称矩阵的子空间迭代法思想,将辛子空间迭代法应用于增压器系统,以某增压器转子为例,充分考虑涡轮增压器的特殊性,建立了涡轮增压器转子的有限元模型,并在计算模型中综合考虑了轮盘的陀螺力矩,转动惯量、支承和轴套等因素,分别计算了增压器转子在不同支承刚度下临界转速、振型的变化趋势,分析了支承刚度对增压器转子动力学特性的影响.计算结果表明:改变支承刚度可以有效地调整该增压器转子的临界转速,但对转子各阶临界转速振型影响不大. |
| 关 键 词： | 内燃机 涡轮增压器 转子 辛子空间 临界转速 动力特性 支承刚度 振型 |
Dynamic Characteristics Analysis of Turbocharger Rotor Based on Gyro Effect |
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| LIAO Ai-hua,SUI Yong-feng,WU Chang-hua.Dynamic Characteristics Analysis of Turbocharger Rotor Based on Gyro Effect[J].Chinese Internal Combustion Engine Engineering,2009,30(4). | |
| Authors: | LIAO Ai-hua SUI Yong-feng WU Chang-hua |
| Affiliation: | 1.College of Urban Railway Transportation;Shanghai University of Engineering Science;Shanghai 201620;China;2.School of Energy and Power Engineering;Xi'an Jiaotong University;Xi'an 710049;3.Department of Engineering Mechanics;Dalian University of Technology;Dalian 116024;China |
| Abstract: | A symplectic matrix subspace iteration method of indefinite gyroscopic systems was applied to solve the natural problem of indefinite gyroscopic systems.A computer program based on this method was used to investigate the rotor dynamic characteristics such as critical speeds of rotor systems.A finite element model of turbocharger rotor system was established which included the gyroscopic moment and stiffness of floating bearings.The varying trends of critical speeds and vibration mode with the variation of b... |
| Keywords: | IC engine turbocharger rotor symplectic subspace critical speed dynamic characteristic bearing stiffness vibration mode |
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