life estimation

By means of hot-spot method we analyze the root of screw of high-strength bolt. Besides, on the basis of analysis above, amendment Miner ruler and mechanics of fracture respectively are adopted to study its fatigue life estimation.

另外，采用修正Miner法则和断裂力学方法对40Cr高强螺栓的疲劳寿命进行估算，同时引热点应力法对40Cr高强螺栓螺纹根部进行应力分析。

The Study of Fatigue Life Estimation under Variable Cyclic Tensile Loading

变幅循环加载下的疲劳寿命估算

Service Life Estimation for the Safety of the Coupler Yoke of Speed up Freight

提速货车钩尾框安全使用寿命的估算方法

For the large error in traditional fatigue life prediction, membership function to the life estimation was introduced in order to form fatigue life estimation method based on fuzzy revised Miner rule.

简要回顾了该领域国内外的研究成果，并分析总结了疲劳理论知识，针对传统疲劳寿命预测误差较大的问题，将隶属函数引入到寿命估算中，形成基于模糊修正Miner法则的疲劳寿命估算方法。

Fatigue Life Estimation on High-strength Bolt Based on Mechanics of Fracture and Accumulated Damage Theory

基于累积损伤及断裂力学理论的高强螺栓疲劳寿命估算

As an example, the fatigue service life estimation is made on the cross-brace assembly of Zhuan K6 bogie with the method.

作为算例，应用该方法对配装转K6型转向架的交叉杆组成进行了疲劳寿命评估。

Dynamic strength and key parts life estimation of C-type dumping car at the second phase coal dock in Qinhuangdao

秦皇岛二期煤码头C型翻车机动强度及关键部位寿命评估

Reliable life estimation for butt-joint area of l_ ( 11) aircraft No.1 wing rib panel

L11飞机机翼1肋壁板对接区可靠寿命估算

The life estimation indicates under the experiment load that every spring ′ s fatigue life on alter-rigidity spring combinations of Zhuan K2 Zhuan K4 and Zhuan K6 bogie made ideally can achieve 3 × 10~ 6 cycles.

试验载荷下的寿命估算表明：质量完好的这3种转向架变刚度弹簧组的各型弹簧的疲劳寿命均可达到3×106次；

A Safe Life Estimation of Heated Parts in a Diesel Engine with Accelerated Thermal Fatigue Test

柴油机受热件加速热疲劳试验安全寿命估算

The Random Response Analysis in the Structure Sonic Fatigue Life Estimation Power Spectral Density Method

结构声疲劳寿命估算中的随机响应分析&功率谱密度法