机械工程英语第二版翻译？CAM生成的NC代码为了使目标机械工具能够直接转换为零件图送给G代码程序运行在已选择的机械上,从而使用一个后处理程序。CAM软件和后处理程序分成两类。类型之一,专业CAM和简洁CAM,它是独立的,并且吸收了所有主要CAM供应商的绘图文件。那么，机械工程英语第二版翻译？一起来了解一下吧。
http://wenku.baidu.com/view/1e0e66d7c1c708a1284a446d.html
defied?是不是defined。
磨损可定义为物体操作表面材料的累积损失，为表面相对运动结果所致。哪里的表面有载荷和运动，哪里便有磨损问题出现。因而磨损问题在工程实际中很重要，常是控制机器零件寿命和性能的主要因素。磨损的几种主要形式介绍如下：
粘附磨损。当两个表面相互接触承重时，整个的接触载荷作用在粗糙表面的一个很小的区域，故在这些粗糙表面的真正的接触压力很大，它们之间便发生粘附。如果把一个切向力施加在图16.1的模型上，剪切不是发生在分界面上（a），就是发生在其下面或上面（b），从而导致粘附磨损。由于各种因素，比如粗糙接触面硬化的压力，粘附连接常比本体金属更坚硬，因此，在这更弱或更软的部件上常会发生滑动或者断裂，产生磨损的部分。尽管这个部分连接在更硬的部件上（图16.1的上表面），但分界面的进一步摩擦最终将使它分离，变成一个松散的磨损零件。
视觉传感系统越来越复杂和通常基于电视摄像机或激光扫描仪。摄像机在信号预处理在硬件和可以喂养在每秒30或60帧每秒到计算机中了。计算机分析数据,提取所需要的信息,例如存在、身份、地位、及发展方向的一个对象被操纵,或部分产品的完整性和完整性被检查。
一个声学传感器的感官声波和诠释它们。成熟的水平的一种原始的声学传感器检测不同声波的存在认识孤立的单词在连续的人类语言。除了人机语音通信、声波传感技术可以被利用由机器人来协助,停止控制电弧焊接机器人的运动时,大声地崩溃被感觉到一种机械破损预测这件事会发生,和考察对象的内部缺陷。
最后,还有一类非接触系统,使用一种成像设备投影机加上获得表面形状信息或范围的信息。
有两种基本方法:静态使用传感器传感和闭环明察秋毫。通常情况下,传感器应用于机器人系统的方式在交替的感应和操纵的辅导,机械手是固定而传感正在进行,然后运动是没有进一步参考传感器。该方法是指静态明察秋毫。使用这个方法,这异象是确定用于物体的位置与方向,并在此基础上,把握盲目机器人移动现场。
题外话一句：你能上网提问不能上网自己查字典么
1. The four-bar linkage may take form of a so-called crank-rocker or a double-rocker or a double-crank (drag-link) linkage, depending on the range of motion of the two links connected to the ground link. The input crank of a crank-rocker type can rotate continuously through 360, while the output link just "rocks" (or oscillates). As a particular case, in a parallelogram linkage, where the length of the input link equals that of the output link and the lengths of the coupler and the ground link are also the same, both the input and output link may rotate entirely around or switch into a crossed configuration called an antiparallelogram linkage. [1] Grashof's criteria states that the sum of the shortest and longest links of a planar four-bar linkage cannot be greater than the sum of the remaining two links if there is to be continuous relative rotation between any two links.
2. Besides having knowledge of the extent of the rotations of the links, it would be useful to have a measure of how well a mechanism might "run" before actually building it. Hartenberg mentions that "run" is a term that means effectiveness with which motion is imparted to the output link; it implies smooth operation, in which a maximum force component is available to produce a force or torque in an output member. Although the resulting output force or torque is not only a function of the geometry of the linkage, but is generally the result of dynamic or inertia force, which are often several times as large as the static force. For the analysis of low-speed operations or for an easily obtainable index of how any mechanism might run, the concept of the transmission angle is extremely useful. During the motion of a mechanism, the transmission angle changes in value. A transmission angle of 0 degree may occur at a specific position, on which the output link will not move regardless of how large a force is applied to the input link. In fact, due to friction in the joints, the general rule of thumb, is to design mechanisms with transmission angle of larger than a specified value. Matrix-based definitions have been developed which measure the ability of a linkage to transmit motion. The value of a determinant (which contains derivatives of output motion variables with respect to an input motion variable for a given linkage geometry[2] ) is a measure of the movability of the linkage in a particular position.
1 。
wear canbe defied asthe progressive loss ofmaterial from the operating surface of a body occurring as a result of relative motion at the surface.the problem of wear arises wherever there are load and motion between surfaces,and is therefore important in engineering practice,often being they major factor governing the life and performance of machine components.the major types of weare are described next:
磨损是相应作用因素使物体作用面的材料逐渐损失的过程。只要两作用面间有载荷及位移就会引起磨损，它是工程实践中影响设备寿命及性能的重要因素。磨损有以下几种形式：
Adhesive wear
粘着磨损
when two surfaces are loaded against each other,the whole of the contact load is carried on verysmall area of the asperity contacts,the real contact pressure at theseasperities is very high,and adhesion takes place between them.if a tangential force is applied to the model shown in Fig.16.1,shearing can take place either (a) at the interface or (b) below or above the interface,causing adhesive wear.because of factors such as strain hardening at the asperity contact,the adhesive bonds often are stronger than thebase metals,thus,during sliding,fracture usually occurs in the weaker or softer component,and awear fragmentis generated.although this fragment is attach to the harder component(upper surface in Fig.16.1c),it eventually becomes detached during further rubbing at the interface anddevelops into a loose wear particle.
当很大的作用力作用在很小的粗糙作用面时会产生很高的接触压力，从而导致两作用面产生粘着磨损。
以上就是机械工程英语第二版翻译的全部内容，有两种基本方法:静态使用传感器传感和闭环明察秋毫。通常情况下,传感器应用于机器人系统的方式在交替的感应和操纵的辅导,机械手是固定而传感正在进行,然后运动是没有进一步参考传感器。该方法是指静态明察秋毫。使用这个方法,这异象是确定用于物体的位置与方向,并在此基础上,把握盲目机器人移动现场。内容来源于互联网，信息真伪需自行辨别。如有侵权请联系删除。
