搜索结果: 1-13 共查到“工学 fatigue life”相关记录13条 . 查询时间(0.156 秒)
Fatigue Life Monitoring Of Metallic Structures By Decentralized RainFlow Counting Embedded In A Wireless Sensor Network
Fatigue Life Monitoring Metallic Structure Decentralized RainFlow Counting Embedded Wireless Sensor Network
2015/6/30
Fatigue is one of the most widespread damage mechanisms found in metallic structures. Fatigue is an accumulated degradation process that occurs under cyclic loading, eventually inducing cracking at st...
Integrated multibody dynamics and fatigue models for predicting the fatigue life of poly-V ribbed belts
Fatigue Belt-Drive Life time Multibody Dynamics
2015/1/12
Belt-drives are used in many applications such as industrial machines, washing machines, and accessory drives for automobiles and other vehicles. Multibody dynamics/finite element numeri...
Stochastic analysis of the influence of tower shadow on fatigue life of wind turbine blade
Wind turbine blades Stochastic fatigue damage Tower shadow Tower design Monte Carlo simulation
2012/4/26
Fatigue damage accumulation in upwind turbine blades is primarily influenced by turbulence in the inflow. However, the stress reversals during blade passages through the stagnating and deflected mean ...
Residual Fatigue Life Prediction of Ball Bearings Based on Paris law and RMS
residual fatigue life Paris law prediction model intrinsic mode function(IMF)
2011/8/5
Paris law can reflect the failure mechanism of materials and is usually used to be a method to predict fatigue life or residual fatigue life. But the variable which can represent the health of machine...
水泵疲劳寿命预测中应力计数算法研究（Counting Method of Stress and Application in Fatigue Life Prediction of Pump）
水泵 疲劳寿命 寿命预测 循环计数
2010/12/28
提出了水泵零件疲劳寿命预测的主要思路，讨论了疲劳寿命预测的关键算法——应力计数算法。针对传统应力计数算法存在应力循环提取失效的缺陷，引入临界净应力的概念，提出了对传统计数算法的改进措施。并将改进后的应力计数算法应用于一台轴流泵叶轮的疲劳寿命预测；同时结合该算例，详细说明了二维概率Miner准则疲劳寿命预测的关键步骤。
An investigation on fatigue life of borided AISI 1010 steel
Boriding Fatigue life AISI 1010 steel
2009/12/14
Purpose: This study aims to investigate the fatigue life of box borided AISI 1010 steel materials.
Design/methodology/approach: Fatigue specimens firstly have been prepared according to ASTM E466-96 ...
Influence of initial heat treatment on the fatigue life of austenitic Fe–Ni alloy
Fatigue Metallic alloys Heat treatment Structure
2009/12/2
Purpose: The paper addresses the problem of determining the dependence between initial heat treatment of an
austenitic Fe–Ni alloy and its mechanical properties and fatigue life at room temperature.
...
Fatigue life of creep resisting steels under conditions of cyclic mechanical and thermal interactions
Thermo-mechanical fatigue Creep resisting steels Fatigue life
2010/8/16
Thermo-mechanical fatigue (TMF) belongs to the phenomena which determine the life of components of power engineering devices. “Thick-walled elements”, in which under conditions of rapid temperature ch...
基于试验场实测应变的车辆下摆臂疲劳寿命分析（Fatigue Life Analysis of Vehicles Lower Suspension Arm Based on Strain Signal Measured in Proving Ground）
车辆 下摆臂 准静态法
2009/8/11
在海南汽车试验场强化路面环境下对某轿车下摆臂应变模拟控制点的应变进行测定，得到其应变时间历程，并进行了频谱分析。讨论了在动态环境下准静态方法的使用条件。结合有限元静力分析结果通过准静态法获得危险点的应力时间历程，利用名义应力法对下摆臂疲劳寿命进行了计算和分析。在此基础上，研究了应变模拟控制点的选取、平均应力修正算法对计算结果的影响，所得结论有助于应变模拟控制点的合理选取，并对提高疲劳寿命估算的准确...
整株秸秆还田机刀轴载荷谱编制与疲劳寿命估算 Load Spectrum Compiling and Fatigue Life Estimation of the Cutter Shaft of the Whole-straw Recycling Machine
整株秸秆还田 刀轴 弯扭载荷谱
2009/5/18
利用DH5937应力测试系统和传感器技术，对刀轴的弯矩和扭矩进行了模拟实测，编制了刀轴弯扭复合载荷谱。通过迈内尔（Miner）线性累积损伤理论推导出刀轴在复合应力作用下的疲劳寿命估算式，并利用刀轴弯扭载荷谱估算出刀轴的疲劳寿命，较设计寿命提高了433h。
Improvement on the Fatigue Life of Welded Joints by the Synergy Effect of Ultrasonic Impact Treatment and Steel with High Resistance to Fatigue Crack Growth
Fatigue Life Welded Joints Ultrasonic Impact Treatment High Resistance Fatigue Crack Growth
2009/4/16
The extension of the fatigue life of welded joints has been in demand to improve the safety and reduce the life cycle cost of ships.To meet such demand, it is effective to apply post-weld treatments w...
管系动应变测量和疲劳寿命评估（Dynamic Strain Measurement and Fatigue Life Assessment of Pipeline ）
管系 动态应变 疲劳寿命
2008/11/19
某核电站调试期间发现电动泵入口管系在小流量运行时振动强烈。本文作者运用电测方法测量了管系实际动态应变，根据ASME和BS标准估算了管道的疲劳寿命。
Loading regimes and designing helical coiled springs for safe fatigue life
springs fatigue of materials loading regimes safe fatigue life
2014/2/28
Springs are loaded by harmonic forces very often. High cycles fatigue damage and failure can be found during its service loading. This paper shortly describes stress concentration factor for helical s...