Dynamics holonomic nonholonomic constraint equations

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SUMMARY

The discussion focuses on holonomic and nonholonomic constraint equations in dynamics, specifically addressing a problem involving a block's position vector and its generalized speeds. The holonomic constraint is defined by the equation pblock dot omegaz=0, leading to the calculation of degrees of freedom as n=3N-M, where N is the number of particles and M is the number of holonomic constraints. The nonholonomic constraint is expressed as ur=sum Ars us + Br, with parameters q1, q2, and time t influencing the functions Ars and Br. The final solution for part c) establishes a relationship between angular velocities as omega2=omega1 r/e=10 r/e.

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  • Understanding of holonomic and nonholonomic constraints in mechanics
  • Familiarity with position vectors and generalized speeds
  • Knowledge of degrees of freedom calculations in dynamic systems
  • Proficiency in vector dot products and their applications in constraint equations
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  • Study the derivation and applications of holonomic constraint equations
  • Explore nonholonomic systems and their implications in mechanical engineering
  • Learn about generalized coordinates and speeds in Lagrangian mechanics
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iolantham
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Homework Statement


Please see the attached file for the problem and figure.


Homework Equations



The Attempt at a Solution


This is what I have so far:
The position vector of the block, pblock= xblock wx+ yblock wy
pblock dot omegaz=0 holonomic constraint equation (dot product)
n=3N-M
N= # particles=1 block
M=# holonomic constraint equations=1
So, n=3-1=2
For the nonholonomic constraint eq.:
ur=sum Ars us + Br, with r=p+1, ..., n
Ars and Br are functions of the parameteres q1 (usually angle), q2, ..., t (time)
p=# deg. of freedom
ur=generalized speeds

For part c), I wrote omega1 r1=omega2 e => omega2=omega1 r/e=10 r/e
Thank you in advance!
 

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No need to reply. I got the answer.

iolantham said:

Homework Statement


Please see the attached file for the problem and figure.


Homework Equations



The Attempt at a Solution


This is what I have so far:
The position vector of the block, pblock= xblock wx+ yblock wy
pblock dot omegaz=0 holonomic constraint equation (dot product)
n=3N-M
N= # particles=1 block
M=# holonomic constraint equations=1
So, n=3-1=2
For the nonholonomic constraint eq.:
ur=sum Ars us + Br, with r=p+1, ..., n
Ars and Br are functions of the parameteres q1 (usually angle), q2, ..., t (time)
p=# deg. of freedom
ur=generalized speeds

For part c), I wrote omega1 r1=omega2 e => omega2=omega1 r/e=10 r/e
Thank you in advance!
 

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