Number of variables exceeds number of equations

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Liu
Liu am 31 Dez. 2013
Kommentiert: Dereje am 27 Feb. 2025
First of all,Happy New Year! Wish u guys a good start in 2014~
I'm a newcomer here.In simlation of a simple closed circuit hydraulic system encouter I this error "Number of variables exceeds number of equations. Check for missing reference node." I dont know what's wrong, i'd be so grateful if u help.
  2 Kommentare
Walter Roberson
Walter Roberson am 31 Dez. 2013
It is not clear to me what your inputs and outputs of the solver are, nor what equation is being solved ?
Liu
Liu am 31 Dez. 2013
Bearbeitet: Liu am 31 Dez. 2013
my inputs are C port(3e-6),S port(188),ouput is the torque output from the variable displacement motor. Although C and S are constant values, can i still get one torque value from the motor, am i right?
i want to simulate a closed hydraulic circuit,with one varaible displacment pump and one two-displacement motor,and the pump S port should be the engine's velocity, but that's too complicated for me ,so i decide to make a simple simulation first.

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Antworten (1)

Liu
Liu am 31 Dez. 2013
Dear Walter Roberson,
I have a few things corrected,and it works well,Thank you so much!
  1 Kommentar
Dereje
Dereje am 27 Feb. 2025
@Liu what have you corrected? I am facing similar problem with 'ideal rotational motion sensor'. Please share me your experience.

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