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10 Nov 2019
i) As electrical engineer you have used mesh analysis, and Ohms law, to analyse a parallel DC circuit. This has resulted in the following matrix relationship; where is the electromotive force (Volts), I is current (Amperes) and R is resistance (Ohms): 127 ?30-10T11 5 -10 35I, In order to determine the current flows in the circuit you have used matrix algebra resulting in Determine R and consequently the value of I, and 1 i) As a civil engineer you are interested in the stress, strain and elasticity of soil in order to determine how effective the soil will be in supporting a road surface In particular you are analysing the data obtained from strain gauge reading: (?.?, , er) and trying to determine strains (4.5-74) This involves the strain transformation equations, resulting in the matrix productA BC cos, sin, sine, cose, In order to determine the strains (e,you will need to determine the inverse of the strain transformation matrix, matrix B, allowing you to find a problem solution using matrix algebra by C B A While the matrix above may look complicated, you have already performed part of the analysis and you have calculated the numerical elements of matrix B, namely: 0.7201 0.2799 -0.4490 B- 0.9997 0.0003 0.0177 0.7121 0.2879 -0.4528 Complete (just) the next step of the analysis, that is determine B-
i) As electrical engineer you have used mesh analysis, and Ohms law, to analyse a parallel DC circuit. This has resulted in the following matrix relationship; where is the electromotive force (Volts), I is current (Amperes) and R is resistance (Ohms): 127 ?30-10T11 5 -10 35I, In order to determine the current flows in the circuit you have used matrix algebra resulting in Determine R and consequently the value of I, and 1 i) As a civil engineer you are interested in the stress, strain and elasticity of soil in order to determine how effective the soil will be in supporting a road surface In particular you are analysing the data obtained from strain gauge reading: (?.?, , er) and trying to determine strains (4.5-74) This involves the strain transformation equations, resulting in the matrix productA BC cos, sin, sine, cose, In order to determine the strains (e,you will need to determine the inverse of the strain transformation matrix, matrix B, allowing you to find a problem solution using matrix algebra by C B A While the matrix above may look complicated, you have already performed part of the analysis and you have calculated the numerical elements of matrix B, namely: 0.7201 0.2799 -0.4490 B- 0.9997 0.0003 0.0177 0.7121 0.2879 -0.4528 Complete (just) the next step of the analysis, that is determine B-
Nestor RutherfordLv2
3 Jan 2019