Through investigation,the authors figure that the average lifetime of the concrete dams in China is about 30-50 years.
阐述了坝工混凝土及其建筑物寿命的现状 ,指出国外坝工界认为混凝土坝的耐久寿命至少为 10 0 a,而我国混凝土坝的平均寿命为 3 0～ 5 0 a,2 1世纪我国将要付出高昂代价去加固修复病坝、危坝。
In this paper a topologic analysis on the reliebility index system for power plant s protective devices is outlined, in it proposed a concept and algorithm on average life s corrent value to refrain from some weakness of the average life value.
对电站保护装置可靠性指标体系引用拓扑理论进行了概要分析，其中针对平均寿命值的弊端提出了平均寿命当时值的概念及算法。
This paper applys Bayes method and historic testing datas and the informations provived by industral technique to make Bayesian demostration test sampling plans of mean life θ=1/λ,thus decreasing working times.
采用Bayes方法,利用历史试验数据及工程技术经验所提供的先验信息,制订了平均寿命θ=1/λ的Bayes验证试验抽样方案,以达到减少试验工作量的目的。
Aiming at the problem how to determine whether the samples are IID, this paper analyzes the test of IID samples and discusses the statistic analysis of reliability under IID and non-IID conditions by taking the mean life for example.
如何判别样本是独立同分布 ?针对此问题 ,本文讨论了样本独立同分布的检验 ,并以平均寿命为例 ,对样本独立同分布和非独立同分布条件下可靠性统计分析进行了讨论。
This paper gives an assessment method for the mean life of complex system based on component test information.
提出了一种利用复杂系统组成设备的试验信息,对复杂系统平均寿命进行综合评估的方法。
Minor accidents can shorten the life of a car.
小事故会缩短汽车寿命。
Ball bearings, and sometimes automotive parts, are designed on the basis of finite life.
球轴承和汽车零件有时是按无限寿命设计的。
Fatigue Analysis and Fatigue Life Estimation Method Research of Automobile Wheel;
汽车钢圈疲劳分析与寿命估算方法研究
Analysis of Intensity and Stiffness and Fatigue Life for the Hydrobulging Automobile Axle Housing;
液压胀形汽车桥壳强度刚度及疲劳寿命分析
Research on the Lubricant Cooling System of the Automobile s Transmission Life-span;
汽车变速器寿命试验台润滑冷却系统的研究
Monitoring System Research and Development for Automobile Transmission Life Testing;
汽车变速器寿命试验监控系统的研究开发
The Life Prediction of Automobile Front Axle Using Part Load Spectra;
基于载荷谱进行汽车前轴寿命估算方法研究
Research on the Key Technologies of Real Axle Fatigue Life Testing
汽车驱动桥总成疲劳寿命试验关键技术的研究
The Finite Element Analysis of Dynamic Performance of the Automotive Drive Axle Housing and Its Fatigue Life Prediction
汽车驱动桥桥壳动力特性分析与疲劳寿命预测
The Prediction of Vehicle’s Service Life With BP Neural Network
基于BP神经网络的汽车发动机寿命预测
TD Cladding and Production Verification of the Serving Life of Tube Bending Mold of the Vehicle
TD覆层与汽车弯管模具使用寿命的生产验证
Research testing equipment for automobile relay life based on PLC control
基于PLC控制的汽车继电器电寿命试验装置研究
How to Extend Service Life of Electrical Car Weighing Instrument Weigh Sensor
如何延长电子汽车衡称重传感器的使用寿命
Research on Intelligent Analysis System for Cold Extrusion Process and Fatigue Life of Automobile Part;
汽车件的冷挤压工艺与疲劳寿命智能分析系统的研究
The Virtual Instrument Development and Application in Automobile Transmission Life Testing Condition Monitoring;
虚拟仪器在汽车变速器寿命试验台状态监控中的开发与应用
A Design of Vehicle Steering Gear Performance and Life Test Devices Based on an Embedded Real-time Operating System;
基于嵌入式实时操作系统的汽车转向器性能及寿命试验
Analysis on Model of Life Cycle Cost of Electric Vehicle Based on Consumer Perspective
基于消费者视角的电动汽车全寿命周期成本模型及分析
Experimental Study on the Influence of Shot Peening on Fatigue Life of Automobile Clutch Diaphragm Spring
喷丸强化对汽车离合器膜片弹簧疲劳寿命影响的实验研究