查询词典 quantificational
- 与 quantificational 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The influence of simulation result which caused by the change of two important parameters has been analyzed by simulating an example, and the influence degree of pol service efficiency has also been confirmed, which offers scientific and quantificational decision-making basis to the air arm pol service in wartime.
通过实例仿真,分析了两个重要参数值的改变对仿真结果的影响,并确定出其对油料保障效率的影响程度,从而为航空兵作战油料保障提供科学的定量决策依据。
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The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.
文中对汽车碰撞安全性的设计理论和方法进行了归类和总结,其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等;重点介绍了碰撞有限元法的基本理论和有关算法,涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等,探讨了有限元计算中的材料模型参数获取技术,开发了相应的材料试验装置及材料模型参数反求软件,在此基础上进行了基本的碰撞仿真算例和试验对比研究;文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性,指出了设计薄壁吸能构件时需要考虑的几个主要影响因素,即焊点、壁厚、横截面和预变形等;在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究,提出了吸能转向机构和自适应安全气囊的仿真研究方法;文中最后探讨了整车碰撞性能的设计与改进方法,提出了以理想碰撞特性为目标,采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法,并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究,所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车,研究结果表明,本文所提出的设计与改进方法是适用而有效的,具有重要的工程实用意义和价值。
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In this paper we introduced the abnormal behaviors of budgerigar before strong earthquakes, and the quantificational measurement, and we also introduced how to predict the time of earth-quake in future.
本文介绍虎皮鹦鹉震前异常行为定量化测量方法以及如何预测未来地震的发震时间。
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The paper introduces the qualitative, quantificational analysis and calculation of the of load capacity and stiffness for contrapositive hydrostatic pocket of hydrostatic slide in precision and ultraprecision machine, and brings forward the method of optimization calculation.
对应用于精密加工和超精密加工机床中的液体静压导轨的承载能力和刚度进行了定性和定量分析计算,并提出对其优化的方法。
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The most plausible suggestion is that Lewis and Unger assign different meanings to the existential quantifier, '' (as well as quantificational phrases like 'there are', 'there is', and 'some').
最合理的建议是,L和U指派了不同的意思给存在量词,""(也就是量词表达"存在"、"有"、"一些"等)。
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The standard and quantificational pest risk analysis methods, expeditiousness of quarantine identification, security of eradication method and globalization of management information system were the trends of management ideas in preventing alien invasive species.
风险分析标准化与定量化、检疫鉴定快速化、除害技术安全化、信息管理全球化是全世界对外来物种入侵管理与科研的焦点问题。
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Soil resources of tidal mud flat appeared differently as the time and spatial, quantificational information about state of soil resources of tidal mud flat and its change were acquired at actual time, it was important to understand the ecological process of the tidal mud flat, it was the basic information applied to scientific, ecological, integrated management and utilization of the soil resources of tidal mud flat.
海涂土壤资源具有显著的时空动态性,因而实时定量获取海涂土壤资源的状态及其变化信息,对认识与理解海涂生态过程有重要作用,也是科学、生态地综合管理与开发利用海涂土壤资源的第一手基础信息。
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By studying and analyzing maritime statistic data and requirements of ship navigability, the author obtains main index of evaluating the safety of LNG carrier cargo loading and unloading, such as hull intensity, stability and buoyancy; At thesame time, the author uses System Engineering theory and AHP to achieve the influence degree of every index on ship safety; then set up the mathematics modeling of multilevel comprehensive assessment which can get quantificational and qualitatively comprehensive safety evaluation of cargo loading and unloading on LNG carrier.
同时运用系统工程学原理,通过层次分析法,确定各评价指标对于船舶安全的影响程度,以模糊数学为工具,建立多级综合评判的数学模型,对LPG安全状况进行定性和定量的综合评价。
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This paper presents a quantificational evaluation to a specified high standard odeum via measuring on some main acoustic parameters.
通过对一个演出规格较高的音乐厅主要声学客观参数的测试,给出了该音乐厅定量的音质评价。
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Firstly, all the terms concerned are split up into basic term elements-termels, then eight aspects of quantificational indexes are given: errors-in-printing ratio,'inconsistent/uncanonical spelling' ratio,'unnecessary one-many/many-one correspondence' ratio,'inequivalent term' ratio,'discrepant interdisciplinary term' ratio,'unconformable-to-GB term' ratio,'incomplete/redundant term' ratio, and overall 'term worthy of revision/discussion' ratio.
其基本方法,一是从名词集中拆分出基础要素-名词元;二是提出八项量化指标:印误率,英语拼写不一致与不规范率,非必要的一多与多一对应率,英汉名词不对等率,与交叉学科名词有异率,与国标定名不符率,收词欠完备与冗余率及总体值得修榷率。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力