Kinematic equation for 4-bar linkage

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    Kinematic Linkage
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Discussion Overview

The discussion revolves around deriving the kinematic equation for a 4-bar linkage, specifically to determine the angular position of a cylinder at various values of theta. The context includes design automation for fixture design, indicating an application-oriented approach.

Discussion Character

  • Homework-related
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants seek help to derive the kinematic equation for the 4-bar linkage.
  • There are requests for clarification on the context of the question, with one participant asking if it is for a school project.
  • Participants express confusion regarding the initial question and the visibility of the schematic diagram.
  • One participant mentions the need to solve the kinematic equation for design automation purposes.
  • There are repeated requests for the original poster to show their attempts at solving the problem and to provide free body diagrams (FBDs) related to the linkage.
  • Attachments of diagrams are mentioned, indicating attempts to provide visual context for the problem.

Areas of Agreement / Disagreement

Participants generally agree that the original poster needs to provide more information and show their work. However, there is contention regarding the appropriateness of moving the thread to different sections of the forum.

Contextual Notes

There are limitations related to the visibility of diagrams and the clarity of the original question. The discussion also reflects a dependency on the original poster's ability to present their work and the specific equations relevant to the problem.

Who May Find This Useful

This discussion may be useful for students or practitioners interested in kinematic analysis of mechanical linkages, particularly in the context of design automation and fixture design.

gpriyavct
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Looking For Help to derive the kinematic equation for the 4-bar linkage shown; (to find the angular position of the cylinder at different values of theta )
 
Last edited:
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gpriyavct said:
Looking For Help to derive the kinematic equation for the 4-bar linkage shown; (to find the angular position of the cylinder at different values of theta )

Welcome to the PF. What is the context of your question? Is it for a school project?
 
i didnt get ur question
 
Last edited:
gpriyavct said:
yes i need an help to solve this...

Okay. Thread moved from ME to the schoolwork section of the PF. What are the relebant equations in approaching a problem like this? Can you show us how you are setting up the equations to solve the problem?
 
no move to ME itself
 
gpriyavct said:
no move to ME itself

No. Show your attempt at a solution. We do not do your homework/coursework for you here. That's part of the PF Rules (see the link at the top of the page).
 
gpriyavct said:
Looking For Help to derive the kinematic equation for the 4-bar linkage shown; (to find the angular position of the cylinder at different values of theta )

That's weird -- where did your diagram go?
 
Here i attached the schematic diagram of 4 bar mechanism.

We are working on design automation for fixture design for that purpose we need to solve this kinematic equation.
 
Last edited:
Hi Friends,

Here i attached the schematic diagram of 4 bar mechanism.

We are working on design automation for fixture design for that purpose we need to solve this kinematic equation.
 

Attachments

  • KBE-3.JPG
    KBE-3.JPG
    27.7 KB · Views: 620
  • #10
sir i can't able to view my question that's y i added there, please help me to view my question to all viewers
 
  • #11
gpriyavct said:
sir i can't able to view my question that's y i added there, please help me to view my question to all viewers

Show us your free body diagrams for the linkage. Show us your equations that you derive from the FBDs. We don't do your work for you here at the PF.
 
  • #12
here i have attached the free diagram as well as main diagram, from that we need to find the equation from the given data, please see both the attachment, now totally i have attached 3 drawings in jpeg file...
 

Attachments

  • KBE-4.JPG
    KBE-4.JPG
    26.1 KB · Views: 607
  • BOE_Clamp_Set_Up_Ref.jpg
    BOE_Clamp_Set_Up_Ref.jpg
    40.7 KB · Views: 643

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