搜索结果: 46-60 共查到“知识库 机械零件及传动”相关记录160条 . 查询时间(2.33 秒)
上反射镜稳定系统机械谐振的分析
机械谐振 上反射镜 稳定 伺服带宽
2016/9/19
针对在上反射镜1/2 机械传动过程中存在机械谐振的问题，提出抑制或消除机械谐振的方法。通过分析 上反射镜稳定系统的控制结构模型，推导出其传递函数和动力学方程，结合上反射镜的实际结构，分析机械谐振产 生的机理，讨论结构机械谐振频率与上反射镜稳定伺服系统带宽关系，并以某型号坦克车长镜为例进行验证分析。 结果表明：整机系统没有出现失稳的现象，应在结构设计初期采取合理的设计及更先进的仿真，以抑制或消除机械...
为解决设计文档特定内容格式要求与载体文档格式差异性问题以及实现知识重用的目的，提出一种基于 可重用文本配置模板的设计文档自动生成方法。将知识模块转化为便于存储的可重用文本配置模板，根据设计需求 对文本配置模板进行选配，生成模板视图集，对模板视图集进行标识符解析、插入辅助文档等处理，生成满足不同 设计需求的设计文档。并以冷弯薄壁型钢结构文本配置模板生成相关的设计文档为例，进行了应用验证。结果表明： ...
Geometry Design and Tooth Contact Analysis of Crossed Beveloid Gears for Marine Transmissions
beveloid gears loaded tooth contact analysis crossed axes marine transmission
2011/8/5
Beveloid gears, also known as conical gears, gain more and more importance in industry practice due to their abilities for power transmission between parallel, intersected and crossed axis.
Application of a Novel Method for Machine Performance Degradation Assessment Based on Gaussian Mixture Model and Logistic Regression
performance degradation assessment Gaussian mixture model logistic regression
2011/8/4
The currently prevalent machine performance degradation assessment techniques involve estimating a machine's current condition based upon the recognition of indications of failure features, which enta...
Design and Modeling on Stranded Wires Helical Springs
stranded wires helical spring mathematical model finite element analysis
2011/8/4
A stranded wires helical spring is formed of a multilayer and coaxial strand of several wires twisted together with the same direction of spiral. Compared with the conventional single wire spring, the...
A Computer Based Approach for the Design of the Orifice-Compensated with Feeding Pocket Annular Hydrostatic Thrust Bearings
Design Hydrostatic thrust bearings Stiffness
2010/1/14
The orifice-compensated with feeding pocket annular hydrostatic (OCFPAH) thrust bearing is a unique type of gas bearing
with many distinguishing characteristics. It is finding many applications in ul...
应用VFP开发减速器CAD/CAI系统
减速器 计算机辅助设计 计算机辅助教学
2010/12/28
减速器是工程应用中重要的机械传动设备,其设计过程复杂、繁琐.作者探讨了减速器设计过程中的关键技术,即运用可视化技术、CAD技术与CAI技术,用VFP作为开发工具,在WINDOWS平台上开发研制了减速器设计及辅助教学系统软件.实践结果表明:该软件运行稳定,结果正确;既能应用于工程设计,又能应用于高校教学;界面友好,使复杂、枯燥的减速器设计过程变得直观、形象、快捷、准确.该减速器设计过程中的关键技术及...
Method for Functional Design of Axiomatic Design Based on Connections
axiomatic design functional design complex product
2011/8/4
Axiomatic design(AD) is a popular design method at the moment, and satisfying the independence axiom is the basis of AD.
Novel Method for Spatial Angle Measurement Based on Rotating Planar Laser Beams
large-scale coordinate measurement spatial angle measurement
2011/8/3
Spatial angle measurement, especially the measurement of horizontal and vertical angle, is a basic method used for industrial large-scale coordinate measurement. As main equipments in use, both theodo...
Wavelet Decomposition for the Detection and Diagnosis of Faults in Rolling Element Bearings
Discrete Wavelets Transform Discrete Wavelet Packet Transform Ball Bearing Fault Detection
2010/1/15
Condition monitoring and fault diagnosis of equipment and processes are of great concern in industries. Early fault detection in machineries can save millions of dollars in emergency maintenance costs...
无系杆摆线针轮啮合副齿廓修形的设计
摆线副 齿廓修形 初始间隙 间隙均匀
2010/9/25
为解决全液压转向器和摆线马达中转子转动不灵活的问题，在分析现有摆线针轮啮合副修形理论基础上，建立摆线副修形的相对性概念和间隙分布评价指标，提出无系杆摆线副修形的主要目标应使初始间隙分布均匀，选择的修形方式为等距修形。以BZZ全液压转向器中的摆线副基本齿形参数： 进行实例计算，并与等距加移距修形的初始间隙进行对比。在现有液压摆线副产品质量的改进中得到良好应用。结果表明：在无系杆摆线副中，等...
Journal bearing performance and metrology issues
Bearing metrology specific film thickness out-of-roundness radial clearance
2009/12/14
Purpose: In this paper, a radial clearance of a journal bearings and the metrology of the radial clearance measurement is described.
Design/methodology/approach: In this experimental study out-of-rou...
Expectation of the parts quality on the ground the simulation of the injection moulding process
Institute of Polymers Processing and Production Managements, Czestochowa University of Technology
2009/12/2
Purpose: The aim of this paper was to present results of researches concerned to predestining quality of polymer parts created by injection moulding method. The estimation of structural solution quali...
Influence of the method of heating/cooling moulds on the properties of injection moulding parts
Engineering polymers Working properties of materials and products Crystallinity
2009/12/2
Purpose: The main purpose of carry out research was estimate the influence thermal conditions of the mould on
properties of injection moulded parts.
Design/methodology/approach: The properties of st...