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Contents >> Engineering Mathematics >> Hydraulic Systems >> Dynamic Analysis >> Form of the analysis results presentation

Dynamic analysis of hydraulic systems - Form of representation of results

Form of representation of results of calculation

Results of the dynamic analysis of hydraulic drive circuit can be presented either in a tabular-numerical kind (listing), or in the form of graphs of dependences interesting us.

The tabular-numerical form of results of calculation (output listing) is constructed as follows. As in each node of hydraulic system the following combinations of physical variables are possible: «pressure – flow of liquid», «force – linear speed – linear displacement», «torque moment – angular speed – turn angle», it is possible to pass pressure to the integrated system of physical variables: "forces" (forces, pressures, torque moments), "speeds" (linear or angular ones, flow of liquid), "displacements" (linear or angular ones) which are indexed by numbers of nodes of the circuit. Then according to it the structure of results of the calculation presented in target listing, is those: 

 Time, s

Number of node             "force"                 "speed"                  "displacement"

Number of node             "force"                 "speed"                  "displacement"

 .         .        .         .        .        .         .        .        .         .        .        .        .

Number of node             "force"                 "speed"                  "displacement"

 

________________________________________________________________________

 

 Time, s

Number of node             "force"                 "speed"                  "displacement"

Number of node             "force"                 "speed"                  "displacement"

 .         .        .         .        .        .         .        .        .         .        .        .        .

Number of node             "force"                 "speed"                  "displacement"

_______________________________________________________________

 Time, s

Number of node             "force"                 "speed"                  "displacement"

Number of node             "force"                 "speed"                  "displacement"

 .         .        .         .        .        .         .        .        .         .        .        .        .

Number of node             "force"                 "speed"                  "displacement"

_______________________________________________________________

 

That is, with the certain step on time for each number of node the three of numbers stands out: "force", "speed", " displacement ", defining for the given time moment values of physical variables operating in the given node. These records stand out until the time interval given for calculation is settled, or there is no emergency stop of the program. In both cases last data describing a condition of hydraulic system (control point), are remembered by the program and since this moment it is possible to continue calculation, having give the longer time interval. Certainly, the emergency stop of the program will demand check of the created situation and its correction for the further continuation of calculation.

 

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