No BSD License  

4.75

4.8 | 8 ratings Rate this file 33 Downloads (last 30 days) File Size: 14.1 KB File ID: #8690

Linkage Mechanism (Mechanical Engineering)

by

 

08 Oct 2005 (Updated )

The complete displacement diagram for all possible configuration of the linkages ...

| Watch this File

File Information
Description

LINKAGE MECHANISM (MECHANICAL ENGINEERING)
  
The command
                    xxx = mnism(r1,r3,l,r4,r5)
   example: xxx = mnism(3,5,6,6,8) -----------(1)
gives two figures. The first shows 7 displacement curves and the second gives description. File
                    f4bar.fig -----------(2)
gives details.
     r1,r2,r3,l - decide the mobility. The computed r2 value is given on the title line of the diagram. For given link lengths, point E, is related to the points B & C. Point B supplies two variables and these are controled by ?a? ? the crank angle. ?a? is the variable . This is included in the file
                    Tang.m ------------(3)
   Curve C is processed algebraically -(Affaine variety & Groebner basis) and the results are in the files
                    X3fun.m ------------(4)
                    X4fun.m ------------(5)
    A similar fate occurs for the point E. The files
                    X5fun.m ------------(6)
                    X6fun.m ------------(7)
     do the processing.
      Quadratic functions do the descriptions. Thiey are procesed in the file
                    Qfun.m ------------(8)
     Four curves satisfy point E ? locus. Intermixing of the coodinate points is resolve by the file
                    Organize.m -----------(9)
     
      The animation file is
                    animism.m --------------------------(10)
         An example xxx = animism(3,5,6,7,8,1,10)
 6th argument selects a particular configuration among {1,2,3,4}, and the 7th is the number of frames. The first 5 arguments are similar to the mnism.m.
    
    The dynamic analysis is included in the file
                    Dymism.m -------------------------------(11)
       An example [xxx1, xxx2] = dymism(3,5,6,7,8,1,1500,60)
  6th is argument selects the particular configuration. 7th argument is the rpm of the crank. 8th argument is a particular angular position of the crank
xxx1 is (361X 13) matrix and it gives all details for any crank location.
  It is also stored in link_age.dat file.
Xxx2 is the same as xxx1 but it is for particular crank position.
                    velo.m --------(12)
                   cvelo.m --------(13)
                   normalize.m ---(14)
are subroutines for (11)
   
   zzz = allcurve(3,5,6,7,8,choice,a,n) gives atlas of curves , a is an nX2 matrix of morphism between a rigt triangle and the coupler plate.
      Subroutines files are
             Allcurve.m ------(15)
             Acurve.m --------(16)
              Map3t.m---------(17)

Required Products Spline Toolbox
MATLAB release MATLAB 6.1 (R12.1)
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
Comments and Ratings (9)
03 Jun 2010 Farzan Tinati

Thank You, Great Work...

18 Mar 2008 Gopal Gautam

Great job, keep it up

26 Feb 2008 ADEJORO SAMUEL

I could see a well done job from you, keep on so as to improve peoples orientation

18 Feb 2008 Mohamed Ali REZGUI

I'm a doctor in mechanichal engineering. I interest in reaserch mechanichal theory and in teaching work. It's the first time that I explore this site. I will send you my comment later. Thank you.

04 Oct 2006 Gazmend Shala  
23 Jul 2006 hosein gholizadeh  
05 Apr 2006 Juan Carlos Sanchez  
02 Dec 2005 oh oooo

You did my homework.^^*
thank U

15 Nov 2005 v s  
Updates
18 Oct 2005

Rocker and crank angle ranges are sometimes useful. Parameters are added (f4bar.fig) and its calculations are included (mnism.m) and given in the form of xy labels. (minor additions)

24 Oct 2005

To include animation for visual appreciation.
example: xxx = animism(3,5,6,7,8,1,5)

28 Nov 2005

Velocity and Accelleration are added

29 Nov 2005

Quiver diagram and a change in the dymism.m for more information are included.

Contact us