凸轮

Marc software, the two-dimensional simulation of isothermal extrusion forming process of globoidal cam was made. The influence of the different model cavity concave wedge angle a on the performance of filling billets was analyzed. It provided an important basis for the realization of cambered cam isothermal compression and the optimization of die structure.

用MSC。 Marc软件对弧面凸轮等温挤压成形过程进行了二维模拟，具体分析了不同凹模型腔楔角α对坯料填充性能的影响，为实现弧面凸轮等温挤压成形和优化模具结构提供了重要依据。

Facing some difficult design which exists in the cam contour curve of indexing motion mechanism against domestic company presently,the conjugate contour curve was viewed as the idea of design and the motion animation was used as the method of design.

针对目前国内企业在间歇运动机构凸轮轮廓曲线设计中所遇到的困难，采用共轭曲线的设计思想和运动模拟仿真的设计思路，并通过案例，介绍了凸轮轮廓曲线的设计方法。

Vector and coordinate transformation are used to analyse the work surface equation and the slip velocity between the cam and idler wheels, also the dynamic characteristics of pistons, cylinders and? principal axis of the contrapositive cam engine.

研究了对置式凸轮发动机的运动学与动力学特性，利用向量与坐标变换法分析了对置式凸轮发动机的工作曲面方程和滚轮相对滑动速度等运动学性能，分析了活塞、气以及主轴等部件的动力学特性。

As far as Cam Corder is concerned, Sony handy cam in India comes in the range of 15k to 20k with more high end handy camera can cross 30k easily.

据凸轮corder而言，索尼得心应手凸轮在印度出现在各种15k的，以2万多的高端轻便相机，才能使两岸30公里容易。

For example, to counter the disadvantage of apprising the dynamic characteristics of valve train with the maximum negative acceleration which is not enough be observed directly and not enough correct, a method of observing directly the valve trains bounce has been also put forward in this paper.

也就是在理论研究手段基本完备的情况下，利用模型直接观察机构的飞脱现象。并且以6110柴油机配气机构为例，考察了机构中最容易反映飞脱特性的推杆力随结构参数、凸轮型线和凸轮转速的变化规律，为研究配气机构飞脱特性提供了直观有效的方法。

The theory of envelopes of one-parameter family of surfaces is used to determine the surface geometry of cylindrical cam profile.

因此，基于NURBS的空间凸轮设计方法简单易行，用该方法制造的空间凸轮在高速传动时具有传动平稳、噪声低、使用寿命长等优点。

A method of determination of the base circle and offset distance was presented and a designer can ascertain the principal size parameters of disk cams correctly or take them as the original numerical values for design.

主要分析了偏置式推杆盘形凸轮机构的主要尺度参数与所给定运动参数之间的关系，并提出了基圆半径r0 ，偏距e等的取值原则与方法，从而准确无误地确定凸轮的主要参数，或是把此参数作为设计变量的初值。

Automatic Programming for NC Machining of Gear Indexing Cam with Smaller Cutter;2. Study on the Technologies of Computer-aided Designing and Programming of Gear Indexing Cam

本文结合弧面分度凸轮加工的工程实际，以微分几何和空间曲面啮合理论为工具，对弧面分度凸轮机构的传动规律、啮合原理和数控加工进行了系统的研究。

In order to make sophisticated cam mechanism into a visualized one and simulate its actual motion state, the equation of curved surface of the contour of globoid indexing cam was established by using spatial gearing principle.

为了将复杂的凸轮机构可视化，实时地模拟其真实的运动状态，利用空间啮合原理，建立弧面分度凸轮的轮廓曲面方程。

Then 3D solid modeling and motion animation of globoid indexing cam based on Pro/ENGINEER and VC++ were realized By modularization design idea.

并采用模块化设计思想，基于Pro/E软件及VisualC++语言进行二次开发，实现了具有真实感的弧面分度凸轮的三维实体造型和运动仿真，为弧面分度凸轮机构的运动性能研究和企业的产品优化设计提供了软件平台。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。