Data Definitions

This section collects and defines all the data needed to build the instance models.

RefnameDD:positionGDD
LabelVelocity
Symbol\(\boldsymbol{v}\text{(}t\text{)}\)
Units\(\frac{\text{m}}{\text{s}}\)
Equation\[\boldsymbol{v}\text{(}t\text{)}=\frac{\,d\boldsymbol{p}\text{(}t\text{)}}{\,dt}\]
Description
  • \(\boldsymbol{v}\text{(}t\text{)}\) is the velocity (\(\frac{\text{m}}{\text{s}}\))
  • \(t\) is the time (\({\text{s}}\))
  • \(\boldsymbol{p}\text{(}t\text{)}\) is the position (\({\text{m}}\))
Source
RefByGD:velocityY2, GD:velocityY1, GD:velocityX2, and GD:velocityX1
RefnameDD:positionXDD1
LabelHorizontal position of the first object
Symbol\({p_{\text{x}1}}\)
Units\({\text{m}}\)
Equation\[{p_{\text{x}1}}={L_{1}}\,\sin\left({θ_{1}}\right)\]
Description
  • \({p_{\text{x}1}}\) is the horizontal position of the first object (\({\text{m}}\))
  • \({L_{1}}\) is the length of the first rod (\({\text{m}}\))
  • \({θ_{1}}\) is the angle of the first rod (\({\text{rad}}\))
Notes
  • \({p_{\text{x}1}}\) is the horizontal position
  • \({p_{\text{x}1}}\) is shown in Fig:dblpend.
Source
RefByGD:velocityX1
RefnameDD:positionYDD1
LabelVertical position of the first object
Symbol\({p_{\text{y}1}}\)
Units\({\text{m}}\)
Equation\[{p_{\text{y}1}}=-{L_{1}}\,\cos\left({θ_{1}}\right)\]
Description
  • \({p_{\text{y}1}}\) is the vertical position of the first object (\({\text{m}}\))
  • \({L_{1}}\) is the length of the first rod (\({\text{m}}\))
  • \({θ_{1}}\) is the angle of the first rod (\({\text{rad}}\))
Notes
  • \({p_{\text{y}1}}\) is the vertical position
  • \({p_{\text{y}1}}\) is shown in Fig:dblpend.
Source
RefByGD:velocityY1
RefnameDD:positionXDD2
LabelHorizontal position of the second object
Symbol\({p_{\text{x}2}}\)
Units\({\text{m}}\)
Equation\[{p_{\text{x}2}}={p_{\text{x}1}}+{L_{2}}\,\sin\left({θ_{2}}\right)\]
Description
  • \({p_{\text{x}2}}\) is the horizontal position of the second object (\({\text{m}}\))
  • \({p_{\text{x}1}}\) is the horizontal position of the first object (\({\text{m}}\))
  • \({L_{2}}\) is the length of the second rod (\({\text{m}}\))
  • \({θ_{2}}\) is the angle of the second rod (\({\text{rad}}\))
Notes
  • \({p_{\text{x}2}}\) is the horizontal position
  • \({p_{\text{x}2}}\) is shown in Fig:dblpend.
Source
RefByGD:velocityX2
RefnameDD:positionYDD2
LabelVertical position of the second object
Symbol\({p_{\text{y}2}}\)
Units\({\text{m}}\)
Equation\[{p_{\text{y}2}}={p_{\text{y}1}}-{L_{2}}\,\cos\left({θ_{2}}\right)\]
Description
  • \({p_{\text{y}2}}\) is the vertical position of the second object (\({\text{m}}\))
  • \({p_{\text{y}1}}\) is the vertical position of the first object (\({\text{m}}\))
  • \({L_{2}}\) is the length of the second rod (\({\text{m}}\))
  • \({θ_{2}}\) is the angle of the second rod (\({\text{rad}}\))
Notes
  • \({p_{\text{y}2}}\) is the vertical position
  • \({p_{\text{y}2}}\) is shown in Fig:dblpend.
Source
RefByGD:velocityY2
RefnameDD:accelerationGDD
LabelAcceleration
Symbol\(\boldsymbol{a}\text{(}t\text{)}\)
Units\(\frac{\text{m}}{\text{s}^{2}}\)
Equation\[\boldsymbol{a}\text{(}t\text{)}=\frac{\,d\boldsymbol{v}\text{(}t\text{)}}{\,dt}\]
Description
  • \(\boldsymbol{a}\text{(}t\text{)}\) is the acceleration (\(\frac{\text{m}}{\text{s}^{2}}\))
  • \(t\) is the time (\({\text{s}}\))
  • \(\boldsymbol{v}\text{(}t\text{)}\) is the velocity (\(\frac{\text{m}}{\text{s}}\))
Source
RefBy
RefnameDD:forceGDD
LabelForce
Symbol\(\boldsymbol{F}\)
Units\({\text{N}}\)
Equation\[\boldsymbol{F}=m \boldsymbol{a}\text{(}t\text{)}\]
Description
  • \(\boldsymbol{F}\) is the force (\({\text{N}}\))
  • \(m\) is the mass (\({\text{kg}}\))
  • \(\boldsymbol{a}\text{(}t\text{)}\) is the acceleration (\(\frac{\text{m}}{\text{s}^{2}}\))
Source
RefBy