实用软件

I have no affiliation with this product other than

除了很开心的实用，我和这个软件没有任何联系。

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。

This system (CASS V1. 0) is a practical animation software system.

CASS V1.0系统是一个实用的软件系统。

According to the business processing of one axletree manufacturing enterprise,design the development models of its production management system.Based on these models,relative software company developes practical system for the manufacturing enterprise,and it runs well in the manufacturing enterprise.

基于UML这种面向对象建模语言和技术，结合某加工制造企业生产管理的业务流程，建立了生产管理信息系统的开发模型，在模型建立的基础上，相关软件企业开发了实用的信息系统，并且在该加工制造企业投入实施，取得了满意的效果。

The real estate management software was aims at the real estate company to exist altogether has the question generally the optimization solution, software itself agglutinates and solidifies has been outstanding but the practical management thought.

房地产管理软件是针对房地产公司存在的普遍共有问题的优化解决方案，软件本身凝集和固化了优秀而实用的管理思想。

Based on the thorough analyzing function and practical value which amplifying call and telephone talk system should have, this thesis proposed the hardware and software scheme, which PC with software program controls system to work hormonally, and presented the introduction of hardware-circuit and software-realizati- on processes in detail.

本论文通过对扩音对讲电话系统所应具有的功能、以及其实用价值进行深入分析的基础上，提出了单片机结合软件程序控制系统协调工作的软/硬件方案，并且给出了详细的硬件电路介绍以及软件实现机理。

Based on the thorough analyzing function and practical value which amplifying call and telephone talk system should have, this thesis proposed the hardware and software scheme, which PC with software program controls system to work hormonally, and presented the introduction of hardware-circuit and software-realizati- on processes in detail.

本扩音对讲电话系统广泛应用于石油、化工、冶金、医药、煤炭等行业的生产场所，满足在此类易燃、易爆、强噪声的特定场合下对通信系统的要求。本论文通过对扩音对讲电话系统所应具有的功能、以及其实用价值进行深入分析的基础上，提出了单片机结合软件程序控制系统协调工作的软/硬件方案，并且给出了详细的硬件电路介绍以及软件实现机理。

Based on the thorough analyzing function and practical value whichamplifying call and telephone talk system should have, this thesisproposed the hardware and software scheme, which PC with softwareprogram controls system to work hormonally, and presented theintroduction of hardware-circuit and software-realizati- onprocesses in detail.

本论文通过对扩音对讲电话系统所应具有的功能、以及其实用价值进行深入分析的基础上，提出了单片机结合软件程序控制系统协调工作的软/硬件方案，并且给出了详细的硬件电路介绍以及软件实现机理。

These MasterClass sessions are presented by a wide variety of industry experts and are based on their tried and tested production techniques for Autodesk software.

该类课程由来自不同领域的 Autodesk 软件使用专家们进行讲授，与大家分享他们在软件测试、使用中的技巧及实用小贴士。

Meanwhile, researchers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautern have developed new computer software that renders of ECG data more precise.

同时，凯瑟劳特的弗劳胡佛实用数学学院的研究者开发了一种新计算机软件。这种软件使心电图数据更加准确。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。