价值工程

Based on theory analysis and numerical calculations, some valuable conclusions are put forward, and some problems in early investigations are found out. Therefore, the results enrich the helical vortex theory and also clear the way from the helical vortex theory to its engineering application.

通过本文的理论分析和数值计算，获得了一系列有价值的研究结果，完善了螺旋涡理论，奠定了该理论工程应用基础，同时发现并解决了早期研究中存在的若干问题。

The study objects of this text are highway and railway tunnel. This text analyze form and mechanism of cause of the tunnel"s disease through knowledge theory such as :rock mechanics, soil mechanics, hydraulics, hydrodynamics, chemistry ,and so on. And combine last criterion, rule and engineering practice, provide the tunnel disease"s the design of prevention and cure, method of construction, new technique, new material, new craftwork. This text provide some advantageous consult values for tunnel prevention and cure.

本文以公路及铁路隧道为研究对象，运用岩体力学、土力学、水力学、流体力学、化学等学科理论，以宏、微观相结合的方法分析了渗漏水、冻害、衬砌裂损及衬砌腐蚀4种常见隧道病害的表现形式、成因机理，结合最新的规范、规则和工程实际给出了隧道病害的防治设计、施工方法以及新技术、新材料和新工艺，为隧道防治提供了有利的参考价值。

Performance of the proposed damage detection approach is demonstrated by the analysis of Xiang jiang transmission tower structure.

对湘江输电塔架结构的数值仿真分析，表明本文提出的损伤诊断方法的结果是令人满意的，具有实际工程应用价值。

The result indicates that fuzzy optimum design method based on fuzzy synthetic judge of automobil transmission shaft is more practical value.

结果表明，基于模糊综合评判的汽车传动轴模糊优化设计，是一种更具有工程实用价值的综合设计方法。

By calculating, we can see that the first thick-walled cylinder in the wall to reach the plastic, and then a gradual outward expansion of plastic zone, which can be practical for engineering design, production and application of the provision of meaningful reference value.

通过计算可知，厚壁圆筒在内壁最先达到塑性，而后塑性区逐渐向外扩展，这可为工程实际中的设计，生产和应用提供有意义的参考价值。

The pollution flashover accidents take place sometimes in power system and the loss because of which is large, So it is significant to study deeply the pollution flashover performance and DC discharge model of long insulator string at high attitude.

电力系统污闪事故时有发生，且所造成的损失是巨大的，因此深入开展低气压下绝缘子串污闪特性及直流放电模型研究具有重要的学术意义和工程应用价值。

Theoptimization of steering linkages of light trucks can be made conveniently and rapidlywith it.

应用该软件可以比较方便、快速地进行有关类型汽车的转向杆系优化设计，具有工程应用价值。

The vibration properties and random fatigue analysis are valuable for steel structure engineering application. By the analysis results, the engineers can consider in depth in the design phase of the steel-framed structures. Steel structure can be optimized based on the results, so that its antivibration performance and life can be improved.

主要振动响应特性分析结果以及随机疲劳的计算分析对钢架结构的设计具有一定的指导和参考价值，可以使工程设计人员在设计钢架结构阶段考虑得更加深入，使钢架结构得以优化，以期提高钢架结构的抗振性能和使用寿命。

The developed mathematical model and obtained dynamic characteristics of gas and steam combined cycle in this thesis is of great practical value and provides a theoretical foundation for its control system design.

本文对燃气蒸汽联合循环机组数学模型和动态特性的研究为其控制系统的设计提供了理论基础，所做工作对联合循环机组控制系统的设计具有重要的工程实用价值。

The study found that free-stage has no effect on performance, to be end as soon as possible; the pressure and oil-filling time in oil-filled stage are the key, which directly determines the speediness of the starting; slipping-stage decides the comfort of the starting, and the friction coefficient is important for this stage, synchronous engaging-stage don't product slipping loss, and don't impact the jerk of the vehicle, needing to be finished fast. According to control object and evaluate guidelines, the fuzzy control algorithm is developed and different experiments verify the correction of algorithm.5 With the debug of CVT control software, the experiment is finished in two years which includes test bench experiment, 60℃high temperature test in Tulufan of Sinkiang province, 4647 meters high altitude test at Kunlun mountains, as well as the minimum temperature of -32℃test at Heihe.

根据控制目标及评价指标，开发了湿式离合器接合过程模糊控制算法，各类试验证实了算法的有效性。5湿式离合器的起步试验伴随CVT控制软件的调试，历时二年，经过台架试验，新疆吐鲁番环境温度高达60℃的高温标定试验，昆仑山口海拔高度4647米的高原标定试验，以及黑河最低温度为-32℃严寒标定试验，所取得的研究成果对离合器软件开发和标定流程具有很好的借鉴意义和工程应用价值。6自动变速器起步离合器的标定是软件产品开发的核心技术。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。