Chinese Version Light学术出版中心
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Issue 6 ， 1998
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C4P Synthesis Design/Manufacture System for Opti mechanics Structure
Abstract：A C4P synthesis design/manufacture system is presented for opti mechanics structure. Each part of the system is stated and an example by terms of software and hardware is given. Finally, strategies to realize a C4P system are stated briefly.Keywords：Opti mechanics structure;CAD/CAE/CAM/CAT/PDM;Synthesis design/manufacture system- 28
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Published：2020-08-12 -
Design Sensitivity Analysis and Optimization of Space Telescope
Abstract：The importance of design sensitivity analysis and optimization technology is expounded. The principle and method of design sensitivity analysis and optimization technology are used in MSC/NASTRAN. Using the finite element program MSC/NASTRAN, the paper used the technology on a space telescope basing on the optical and mechanical system's requirements, and improved it effectively.Keywords：Design sensitivity analysis;optimization design;Space telescope- 39
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- 10
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Published：2020-08-12 -
CAD/CAE/CAM of Injection Mold for Optical Plastics Lens
Abstract：Two design ways of injection mold for a spherical surface otpical plastics lens are discussed.The process of Computer Aided Design, Computer Aided Engineering Analysis and Computer Aided Manufacturing are discribed emphatically.- 52
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Published：2020-08-12 -
Study on Thermal Control Design of Space Camera Based on CAD/CAE/CAT
Abstract：The thermal control design of space camera by means of CAD/CAE/CAT technology is described,technical problems on thermal optics of space camera,thermal control temperature index, thermal response and thermal control design are also discussed in this paper.Keywords：CAD;CAE;CAT;Space camera;Thermal optics;thermal design- 112
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Published：2020-08-12 -
Mechanism Analysis and Simulation for Transfer Film Photograph Systems on Space Camera
Abstract：By means of CAD/CAE Application UG/Mechanisms, transfer film and image motion speed compensation systems on space camera have been kinematically analyzed and simulated, which provided interference check, rang of motion, displacement, velocity and acceleration for mechanical systems design/assessment.Keywords：CAD/CAE;Mechanisms;Image motion speed compensation;Link;Joint- 30
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Published：2020-08-12 -
The Dynamic Environment Simulation of Space Remote Sensor
Abstract：The goal and content of computer dynamic environment simulation of space remote sensor are stated in this paper. The effect of dynamic environment on remote sensor is discussed. The computer simulation method is carried out by transient, overload, low frequency vibration and random vibration environment etc.Keywords：Transient;Overload;Low frequency vibration;random vibration- 18
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Published：2020-08-12 -
The Analysis of On orbit Thermal Stability for Optical Window of Space CCD camera
Abstract：The thermal requirement of the optical window are calculated in this paper by FEM, the on orbit thermal properties and thermal response of the window under space thermal environment are analyzed,after the thermal control methods are taken, the temperature distribution and temperature variation of the window are much improved.Keywords：Optical window;thermal analysis;FEM- 38
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Published：2020-08-12 -
An Investigation Scheme on Structural Parameters of a Space Optical Tube
Abstract：A space optical tube is a typical thin cylindrical shell structure,and thin cylindrical shell is widely used in the field of aircraft 、spacecraft and ships.Hence,the dynamic characteristics of this kind of shell have been studied extensively. In order to improve the static characteristics of the shell, stiffeners have found wide applications to stiffen the shell.It is unknown that how the dynamic characteristics of the shell change.The purpose of the present work is to analyze the dynamic characteristics of thin cylindrical shell with axial and circular stiffeners, and the changes of the dynamic characteristics which are affected by the stiffeners parameters.Keywords：Thin shell;Dynamic characteristics;Stiffeners- 41
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Published：2020-08-12 -
Treating with Surface Figure Error of Mirror/Lens by Means of Surface Equation
Abstract：The advantage and disadvantage of Zernike polynomials is stated, and an approach to treating with the surface figure error of mirror/lens by means of surface equation is presented. The advantage and limitation of the method is discussed.Keywords：Surface figure;Error;Least squares method;Root of Mean Squares (RMS.)- 44
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Published：2020-08-12 -
Analysis of the Elastohydrodynamic Behaviour of Non-Newtonian Fluid Between Printing Rollers by Finite Element Method
Abstract：The contact between printing rollers is one of the most generic and important techniques to study. A numerical model of a soft rolling contact is introduced for a non-Newtonian fluid. The governing equations with regard to fluid pressure are derived using the Galerkin weighted residual method, and the equations with regard to surface distortion are obtained by the application of the principles of virtual work. These equations are solved by finite element method.The numerical solutions of these equations are obtained by finite element method, which are compared with the experimental data. The results show that a agreement is achieved.Keywords：Soft rolling contact;Non-Newtonian fluid;finite element method- 20
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Published：2020-08-12 -
Analysis of a Soft Elastic Rolling Contact by Boundary Element Method
Abstract：The soft elastic rolling contact is on the elastohydrodynamic lubrication (EHL) of rollers with a elastic layer. It is concerned with the interaction between the deformation of the soft elastomer covering on the roller and fluid pressure. Because the layer is easily deformable, and there is an engagement between the two rollers, the contact is one of the most difficult areas to model successfully using common methods. The hydrodynamic equation is transformed into a form of boundary integral equation and surface distortion is obtained from boundary integral equations in order to achieve the simultaneous iterative solution of the governing equations. The contact behaviour is investigated in this paper by means of boundary element method. The results highlight the main roller train design and operating parameters for the contact, and show that the method is efficient for such layered problems.Keywords：Soft rolling contact;Numerical modelling;Boundary element method- 40
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Published：2020-08-12 -
Thermal Response Calculation and Thermal Control of the Space Optical Remote Sensor
Abstract：The space optical remote sensor are subject to complicated space thermal loads, the calculation of the thermal response are performed in this paper by the method of FEM and some thermal control method are taken, so the temperature's distribution of the sensor are well improved.Keywords：thermal analysis;Thermal control;FEM- 35
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Published：2020-08-12 -
Research of Improving NC Machining Accuracy Approach
Abstract：This article probes deeply into the methods of improving NC machining accuracy and studies on the influence of CAD/CAM integration technology,machining status control and high precision interpolation on the NC machining accuracy.Keywords：CAD/CAM integration;Machining;Accuracy interpolation- 35
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- 6
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- 1
Published：2020-08-12 -
Application of CAD/CAM Technology in NC Milling Parts of Space Camera
Abstract：This paper describes primary functions and characters of CAD/CAM. The role of CAD/CAM in design and manufacture is illustrated by application of CAD/CAM technology in NC milling parts of space camera. The development of CAD/CAM integration is promising.Keywords：CAD/CAM;CIMS;NC milling- 42
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- 6
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Published：2020-08-12 -
Application of Artificial Neural Network Technology in NC Machining Error Controlling
Abstract：The characters of Artificial Neural Network model has been introduced in the paper. The principle on three layer perception model and back propagation learning algorithm are given, And its application in NC Machining Error Controlling are described.Keywords：Artificial neural networks;Numerical control machining;BP algorithm- 38
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- 7
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Published：2020-08-12 -
Computer Control of Spindle Speeds for Type XD5032 Milling Machine
Abstract：Based on XD5032 type milling machine,XD5032/BQ type time verying spindle milling machine has been designed.The STD bus device for industrial control is used as a main unit in the system. Computer control of spindle speeds for type XD5032 milling machine has been developed.Keywords：Milling machine;Time change spindle speed;Computer;control- 56
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Published：2020-08-12 -
Computer Aided Evaluation of Dynamic Comprehensive Accuracy of Lead Screw
Abstract：According to the latest standard,an optimal algorithm is adopted to deal with the dynamic measurement error of machine tool trapezoidal screw and ball screw,and the accepting programs of helical axial error,pitch error,cumulative pitch error of machine tool trapezoidal screw and specifications of travel accuracy of ball screw are carried out automatically.On EMCD-Ⅱ (Error Measurement and Control Device),developed by the research group,the spiral error data collection and acceptance of its trapezoidal screw have been realized.Keywords：Lead screw;Dynamic comprehensive accuracy;Optimal algorithm;Computer aided evaluation- 57
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Published：2020-08-12 -
Design of Space Remote Sense Camera Thermal Environment Simulated Experiment Device and Determination of Heating Power
Abstract：The importance of thermal environment simulated experiment and the urgency of manufacturing concerning device are described.The designing scheme of the experiment device is provided.At last,heating power is determined by means of CAE.Keywords：Thermal environment simulated experiment device;Thermal house;Heating power- 50
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- 8
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- 2
Published：2020-08-12 -
A Study on Thermal Circumstance Simulative Test of High Resolution Camera
Abstract：The process of simulative test of thermal circumstance is reported in this paper,the method of achieving thermal circumstance by CAT is investigated.Keywords：space camera;Thermal circumstance;Simulative test- 41
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- 11
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Published：2020-08-12 -
The Method of Detection on Transient Signal in Stationary Random Noise
Abstract：The method of detection on transient signal by the slice of cyclo bispectrum in stationary random noise is proposed in this paper, simulation results are presented also.Keywords：Transient Signal;Cyclo bispectrum;Stationary Random Noise- 56
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Published：2020-08-12 -
Non system Variable Having Influence on Imaging Quality of TDICCD
Abstract：Non system variables having influence on imaging quality of TDICCD are discussed in the paper.The adjustment method is proposed.Keywords：TDICCD;Image;Attitude- 60
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Published：2020-08-12 -
CAD Ageing of IC
Abstract：This paper states ageing purport of IC, and the instances of proceeding element failure by means of computer aided are also mentioned.Keywords：Failure;A/D;D/A;Software- 39
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Published：2020-08-12 -
Authoring Technology of Multimedia Financial Teaching and Training Software
Abstract：This paper describes the course of research and development of multimedia CAI software.It also describes how to prepare multimedia CAI data and synthetic authoring of various multimedia information.- 29
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Published：2020-08-12
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