1) life evaluation
寿命评估
1.
The characteristic extraction and optimization based on the life evaluation of diesel engine was researched.
研究了基于振动的柴油机寿命评估中特征提取及优选问题。
2.
The life evaluation method for key components of 300 MW unit s boiler is introduced.
介绍了国产300MW机组锅炉关键性部件寿命评估的方法,运用电厂原有的历次检验、检修的数据,结合金属材料各方面的材料性能,并辅以机组投运以来启停记录和运行方式的统计,对锅炉关键性部件进行寿命评估;该系统对指导电厂合理运行、延长机组寿命及提高效益有着重要意义。
3.
Different methods and theories for life evaluation of power equipment have been summarized, and the research developments of life evaluation technique for power equipments at home and abroad have been introduced as well.
综述了电力设备寿命评估的各种方法、理论 ,介绍了国内外对电力设备寿命评估技术的研究动态 ,同时还对变压器、发电机和电动机的寿命评估方案进行了阐
2) life assessment
寿命评估
1.
Discussion about the method of life assessment for steel T91;
关于T91钢寿命评估方法的探讨
2.
Research of Condition Inspection and Life Assessment on the High Temperature Superheater and Reheater of Boiler;
锅炉高温过热器及再热器状态检验和寿命评估研究
3.
A preliminary investigation is carried out on the service life assessment of domestic flue gas turbine.
介绍了透平机转子的部件检验和强度分析,探讨了国产透平机的寿命评估。
3) service life evaluation
寿命评估
1.
It is recommended to strengthen the plant-incoming inspection of high-temperature metallic parts, on-line monitoring, and service life evaluation etc.
分析认为屏式过热器爆管为长时间超温运行,造成材料组织老化及腐蚀引起,建议运行中加强高温金属部件入厂检验、在线监测及寿命评估等,以确保机组安全运行。
2.
Based on evaluation result of the online detecting system for service life,inspection and service life evaluation have been carried out by using methods,such as oxide layer,solidity,structure,and stress evaluation etc.
根据寿命在线检测系统的监测,采用氧化皮、硬度、组织、应力评估等方法进行检验和寿命评估。
4) life estimation
寿命评估
1.
Remaining life estimation database system for large lifting equipment;
大型起重机械剩余寿命评估系统数据库
5) Residual life evaluation
剩余寿命评估
1.
The finite element modeling method is used to stimulate the course at which a reinforced concrete beam isn t loaded until it has fissures and the principle of residual life evaluation on the basis of elements of damaged beam is introduced.
探讨了对钢筋混凝土梁自加载到开裂整个过程进行有限元模拟的方法,介绍了基于损伤梁单元的剩余寿命评估的原理,结合工程实例,基于ANSYS计算钢筋混凝土梁开裂后的损伤度以及剩余寿命,为既有桥梁寿命评估提供参考。
6) fatigue life estimation
疲劳寿命评估
1.
The loads on this bridge are given according to the load frequency spectrum obtained from traffic survey,and fatigue analysis of SFRCsteel quasi-bond box girder is accomplished based on the integration of finite element analysis and fatigue life estimation by MSC Nastran and MSC Fatigue software.
文章采用MSC Patran软件建立广州市内环线恒福路立交桥有限元模型,利用该路段交通量调查得到的标准车辆荷载谱对该桥进行加载,应用MSC Nastran、MSC Fatigue软件进行有限元分析和疲劳寿命评估两者的整合,对钢箱钢纤维混凝土准结合梁进行总体疲劳寿命评估,根据评估结果找出结构最为薄弱的位置,对该位置处的剪力连接件进行疲劳寿命评估,为该类构件的疲劳问题求解提供了实用计算方法。
2.
An analysis of the fatigue life of the welding seams of the steel-concrete quasi-bond box girder is carried out based on the integration of finite element analysis and fatigue life estimation by ad.
文章根据广州市内环线恒福路段的交通量调查结果,推导得出了恒福路段高架桥的标准车辆荷载谱,采用MSCPatran软件建立有限元模型,利用标准车辆荷载谱对该桥进行加载,应用MSCNastran、MSCFatigue软件进行有限元分析和疲劳寿命评估二者的整合,对钢箱混凝土准结合梁焊缝进行了疲劳寿命评估,得出合理结论,为该类型桥梁的疲劳问题求解提供了实用计算方法。
补充资料：地价评估趋势评估法
地价评估趋势评估法
【地价评估趋势评估法】土地价格在一定的时间内由于受诸多因素影响，呈周期性的波动，但总趋势是上升的，因此，利用一定的数学模型，就可以求算出地价，一般要通过回归分析，找出土地价格与时间变量之间的函数关系，画出地价发展变化趋势图形，然后建立数学模型，进而推算出地价。若以Y代表历年地价，X代表时间，丫代表地价，其关系式为:y‘=a+bx(a、b为常数)。采用这一方法，需以长年积累起来的地价变动资料作为分析依据。地价的时间序列最好在ro年以上。因为时间序列愈长，愈能排除偶然因素和短期因素对趋势值的异常干扰。另外，用地价长期趋势图可比较两个地段地价_L涨的强弱程度，如果长期趋线越陡，则表明该地段地价升值性越强;反之，则表明该地价的升值性越弱。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条