scholarly journals The modified nodal analysis method applied to the modeling of the thermal circuit of an asynchronous machine

2017 ◽  
Vol 163 ◽  
pp. 012007 ◽  
Author(s):  
O Nedelcu ◽  
C I Salisteanu ◽  
F Popa ◽  
B Salisteanu ◽  
C V Oprescu ◽  
...  
Keyword(s):  
Analysis Method ◽  
Nodal Analysis ◽  
Asynchronous Machine ◽  
Thermal Circuit ◽  
Modified Nodal Analysis

Thermodynamic Performance Analysis of Stirling Engine with a Nodal Analysis Method

2013 ◽  
Vol 712-715 ◽  
pp. 1625-1629
Author(s):  
Bo Yi Song ◽  
Kai Luo ◽  
Hui Tao Yang ◽  
Kan Qin ◽  
Wang Li
Keyword(s):  
Stirling Engine ◽  
Working Fluid ◽  
Analysis Method ◽  
Characteristic Analysis ◽  
Nodal Analysis ◽  
Output Performance ◽  
Flow And Heat Transfer ◽  
Modified Nodal Analysis ◽  
Thermodynamic Performance ◽  
Testing Data

A nodal analysis method for thermodynamic analysis of Stirling engine is modified based on the check of mechanical loss and the temperature of the heater and cooler. A computational modeling for simulating the process of oscillating flow and heat transfer occurring in the P-40 four-cylinder double-acting Stirling engine has been developed, and the changing effects of different parameters such as the internal pressure, temperature, velocity, power and efficiency are obtained. Numerical simulation results show that they coincide with the testing data given by NASA. The influence of speed, working fluid and average pressure on the engine output performance is analyzed by the modified nodal analysis method. This method is a useful tool for the optimal design and operating characteristic analysis of Stirling engine.

A nodal analysis method for simulating the behavior of electrothermal microactuators

2007 ◽  
Vol 14 (1) ◽  
pp. 119-129 ◽  
Author(s):  
Ren-Gang Li ◽  
Qing-An Huang ◽  
Wei-Hua Li
Keyword(s):  
Analysis Method ◽  
Nodal Analysis

scholarly journals A Nodal Analysis Method for Laterally-Driven Electrothermal Microacutators

2006 ◽  
Vol 34 ◽  
pp. 558-563 ◽  
Author(s):  
Ren-Gang Li ◽  
Qing-An Huang ◽  
Weihua Li
Keyword(s):  
Analysis Method ◽  
Nodal Analysis

A Modeling Method of Wideband Devices Based on Modified Nodal Analysis

2012 ◽  
Vol 182-183 ◽  
pp. 1323-1327
Author(s):  
Feng Lu ◽  
Jia Lu
Keyword(s):  
Equivalent Circuit Model ◽  
Measured Data ◽  
Model Fit ◽  
Maximum Relative Error ◽  
Frequency Range ◽  
Circuit Partitioning ◽  
Nodal Analysis ◽  
Modified Nodal Analysis ◽  
Simulation Results ◽  
Verification Process

According to the simplified circuit partitioning principle, this paper improves the Modified Nodal Analysis(MNA) of wideband Equivalent Circuit Model(ECM). The form of upconversion impedance is transformed from series into parallel. The results show that in the parallel form, the verification process of impedance type has been eliminated and it will not introduce new nodes. At the same time, the amount of computation has been reduced. The maximum relative error of measured data with this model fit is less than 0.693%. The simulation results and ECM test data are consistent with better at 0 to 8GHz frequency range.

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