锚绞机关键部件有限元分析.rar
锚绞机关键部件有限元分析,摘要锚绞机作为船舶配套的主要设备之一，对船舶有着重要的作用。目前，国内企业自主研发能力弱，锚绞机多采用传统方法设计，存在自重大、结构不合理、性能较差、寿命低等问题。而且，对锚绞机一些关键部件的工作机理研究不够深入，制约新型、重型锚绞机研发。大容量、小体积、长寿命、安全可靠等是国际上锚绞机的发展趋势。所以为了降低制造成本...
该文档为压缩文件,包含的文件列表如下:
内容介绍
原文档由会员 违规屏蔽12 发布
摘 要
锚绞机作为船舶配套的主要设备之一，对船舶有着重要的作用。目前，国内企业自主研发能力弱，锚绞机多采用传统方法设计，存在自重大、结构不合理、性能较差、寿命低等问题。而且，对锚绞机一些关键部件的工作机理研究不够深入，制约新型、重型锚绞机研发。大容量、小体积、长寿命、安全可靠等是国际上锚绞机的发展趋势。所以为了降低制造成本、减小产品周期和快速响应市场，提高产品的竞争力，需要采用全新的设计方法对锚绞机进行全面深入的分析。
本文以近代力学理论、热力学理论和有限元理论为基础，以Hypermesh和ABAQUS有限元软件为手段对锚绞机进行了有限元分析和优化。具体的研究工作和结论如下：
(1) 对锚绞机支架在三种额定工况的静态力学性能进行有限元分析，并在此基础上运用软件OPTISTRUCT对支架进行了尺寸优化设计。满足支架结构强度的条件下，使支架整体重量减轻，体积减小。这为锚绞机支架的合理设计提供了科学依据。
(2) 分析了锚绞机传动齿轮失效特点，运用非线性有限元法对齿轮啮合性能进行数值分析，得到齿轮齿高和齿宽方向载荷分配规律、齿轮啮合刚度变化规律、齿根弯曲应力随时间变化曲线、齿面接触应力分布特点。这些为齿轮的设计、制造和改进提供了可靠的依据。
(3) 对带式制动器制动过程中温度场等物理量的变化进行新的探索和定性研究，直接建立了重复制动工况下带式制动器摩擦生热模型，考虑到了摩擦接触和大转动等非线性因素，较为真实的模拟了制动器的制动过程。利用ABAQUS软件对带式制动器摩擦接触热力耦合模型进行求解，得到了以下结论：制动带的应力、变形和温度场分布规律；摩擦片应力、接触压力、瞬态温度场分布规律；摩擦片生热和散热过程。
关键词 锚绞机；有限元分析；优化；啮合性能；摩擦生热；热力耦合
Abstract
Anchor and mooring winch is one of main equipments of shipping supplementtary is important for ship. At present, R&D capabilities of domestic enterprises are weak. Traditional design methods are playing main roles in the design of anchor and mooring winch and bringing them some problems such as high weight, irrational structure, poor performance and low life. Working mechanisms of some key parts of anchor and mooring winch are not thorough enough, which constrain R&D of new and heavy anchor and mooring winches. Trends of anchor and mooring winch are large capacity, small volume, longevity, safe and so on internationally. In order to reduce manufacturing costs, reduce product cycle, satisfy market rapid response and enhance the competitiveness of products, it need to adopt new design methods for anchor mooring windlass.
Mechanics theory, thermodynamics theory and finite element theory are employed as foundation in this paper. Researches are based on the CAE software Hypermesh and ABAQUS. Main researches and conclusions are as follow:
(1) According to FEA(finite element analysis) results under threes loadcases and using optimization software OPTISTRUCT, the structural and size optimization of brackets of anchor and mooring winch are researched. After optimization, weight and volume of the winch are decreased, but the structural strength of bracket is strengthened. This provides a scientific basis for rational design for anchor and mooring winch.
(2) This paper analyzes the failure of anchor windlass gear characteristics, carries out the numerical analysis on gear meshing performance using nonlinear finite element mthod. The load distribution of tooth height and width direction and gear mesh stiffness is obtained. Gear contact strength and bending strength are studied. These provide a reliable basis for the improvement of design and manufacture of gear.
(3) New exploration and qualitative researches are carried on. Difference from previous studies is that friction heat build-up model of the band brake is established directly.With ABAQUS, the finite element thermoelastic coupling model which includes non-linear factor is solved. The sress,displacement,contact stress,contact pressure and temperature fields are acquired under the repetition braking condition.
Keywords Anchor and mooring winch ; FEA; optimization; meshing performance; friction heat build-up ; thermoelastic coupling
目 录
摘 要 I
Abstract II
第一章 绪论 1
1.1 课题背景及意义 1
1.2 本课题研究现状 2
1.2.1 锚绞机研究现状 2
1.2.2 国内外齿轮研究现状 3
1.2.3 摩擦制动器研究现状 4
1.3 本文研究内容与结构 7
1.3.1 锚绞机工作原理及基本参数 7
1.3.2 研究内容 8
1.3.3 本文结构 9
1.4 本章小结 9
第二章 基本理论 10
2.1 非线性有限元分析基本理论 10
2.1.1 几何非线性理论 10
2.1.2 接触分析理论 12
2.2 摩擦制动器热力耦合理论基础 16
2.2.1 热分析基本理论 16
2.2.2 热力耦合有限元基本理论 17
2.3 OPTISTRUCT优化理论 19
2.4 本章小结 20
第三章 锚绞机支架分析及优化 21
3.1 锚绞机支架额定工况分析 21
3.2 支架有限元分析 22
3.2.1 材料性能参数 22
3.2.2 有限元模型的建立 22
3.2.3 计算结果与分析 23
3.3 支架结构改进 24
3.4 支粿@叽缬呕� 26
3.5 优化后支架有限元分析 28
3.6 本章小结 29
第四章 锚绞机齿轮非线性有限元分析 31
4.1 齿轮弯曲应力和变形常用计算方法 31
4.2 齿轮接触应力计算方法 35
4.3 锚绞机齿轮失效分析 35
4.4 锚绞机齿轮三维啮合性能有限元分析 37
4.4.1 锚绞机齿轮仿真模型 37
4.4...
锚绞机作为船舶配套的主要设备之一，对船舶有着重要的作用。目前，国内企业自主研发能力弱，锚绞机多采用传统方法设计，存在自重大、结构不合理、性能较差、寿命低等问题。而且，对锚绞机一些关键部件的工作机理研究不够深入，制约新型、重型锚绞机研发。大容量、小体积、长寿命、安全可靠等是国际上锚绞机的发展趋势。所以为了降低制造成本、减小产品周期和快速响应市场，提高产品的竞争力，需要采用全新的设计方法对锚绞机进行全面深入的分析。
本文以近代力学理论、热力学理论和有限元理论为基础，以Hypermesh和ABAQUS有限元软件为手段对锚绞机进行了有限元分析和优化。具体的研究工作和结论如下：
(1) 对锚绞机支架在三种额定工况的静态力学性能进行有限元分析，并在此基础上运用软件OPTISTRUCT对支架进行了尺寸优化设计。满足支架结构强度的条件下，使支架整体重量减轻，体积减小。这为锚绞机支架的合理设计提供了科学依据。
(2) 分析了锚绞机传动齿轮失效特点，运用非线性有限元法对齿轮啮合性能进行数值分析，得到齿轮齿高和齿宽方向载荷分配规律、齿轮啮合刚度变化规律、齿根弯曲应力随时间变化曲线、齿面接触应力分布特点。这些为齿轮的设计、制造和改进提供了可靠的依据。
(3) 对带式制动器制动过程中温度场等物理量的变化进行新的探索和定性研究，直接建立了重复制动工况下带式制动器摩擦生热模型，考虑到了摩擦接触和大转动等非线性因素，较为真实的模拟了制动器的制动过程。利用ABAQUS软件对带式制动器摩擦接触热力耦合模型进行求解，得到了以下结论：制动带的应力、变形和温度场分布规律；摩擦片应力、接触压力、瞬态温度场分布规律；摩擦片生热和散热过程。
关键词 锚绞机；有限元分析；优化；啮合性能；摩擦生热；热力耦合
Abstract
Anchor and mooring winch is one of main equipments of shipping supplementtary is important for ship. At present, R&D capabilities of domestic enterprises are weak. Traditional design methods are playing main roles in the design of anchor and mooring winch and bringing them some problems such as high weight, irrational structure, poor performance and low life. Working mechanisms of some key parts of anchor and mooring winch are not thorough enough, which constrain R&D of new and heavy anchor and mooring winches. Trends of anchor and mooring winch are large capacity, small volume, longevity, safe and so on internationally. In order to reduce manufacturing costs, reduce product cycle, satisfy market rapid response and enhance the competitiveness of products, it need to adopt new design methods for anchor mooring windlass.
Mechanics theory, thermodynamics theory and finite element theory are employed as foundation in this paper. Researches are based on the CAE software Hypermesh and ABAQUS. Main researches and conclusions are as follow:
(1) According to FEA(finite element analysis) results under threes loadcases and using optimization software OPTISTRUCT, the structural and size optimization of brackets of anchor and mooring winch are researched. After optimization, weight and volume of the winch are decreased, but the structural strength of bracket is strengthened. This provides a scientific basis for rational design for anchor and mooring winch.
(2) This paper analyzes the failure of anchor windlass gear characteristics, carries out the numerical analysis on gear meshing performance using nonlinear finite element mthod. The load distribution of tooth height and width direction and gear mesh stiffness is obtained. Gear contact strength and bending strength are studied. These provide a reliable basis for the improvement of design and manufacture of gear.
(3) New exploration and qualitative researches are carried on. Difference from previous studies is that friction heat build-up model of the band brake is established directly.With ABAQUS, the finite element thermoelastic coupling model which includes non-linear factor is solved. The sress,displacement,contact stress,contact pressure and temperature fields are acquired under the repetition braking condition.
Keywords Anchor and mooring winch ; FEA; optimization; meshing performance; friction heat build-up ; thermoelastic coupling
目 录
摘 要 I
Abstract II
第一章 绪论 1
1.1 课题背景及意义 1
1.2 本课题研究现状 2
1.2.1 锚绞机研究现状 2
1.2.2 国内外齿轮研究现状 3
1.2.3 摩擦制动器研究现状 4
1.3 本文研究内容与结构 7
1.3.1 锚绞机工作原理及基本参数 7
1.3.2 研究内容 8
1.3.3 本文结构 9
1.4 本章小结 9
第二章 基本理论 10
2.1 非线性有限元分析基本理论 10
2.1.1 几何非线性理论 10
2.1.2 接触分析理论 12
2.2 摩擦制动器热力耦合理论基础 16
2.2.1 热分析基本理论 16
2.2.2 热力耦合有限元基本理论 17
2.3 OPTISTRUCT优化理论 19
2.4 本章小结 20
第三章 锚绞机支架分析及优化 21
3.1 锚绞机支架额定工况分析 21
3.2 支架有限元分析 22
3.2.1 材料性能参数 22
3.2.2 有限元模型的建立 22
3.2.3 计算结果与分析 23
3.3 支架结构改进 24
3.4 支粿@叽缬呕� 26
3.5 优化后支架有限元分析 28
3.6 本章小结 29
第四章 锚绞机齿轮非线性有限元分析 31
4.1 齿轮弯曲应力和变形常用计算方法 31
4.2 齿轮接触应力计算方法 35
4.3 锚绞机齿轮失效分析 35
4.4 锚绞机齿轮三维啮合性能有限元分析 37
4.4.1 锚绞机齿轮仿真模型 37
4.4...
