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___ refers to both impedance, which is the rejection of energy, and admittance, which is the acceptance of energy |
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The concept of mechanical impedance is illustrated by examining the interaction between a constant ___ applied to an object and the resultant ___ of the object. |
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What is the equation for impedance? |
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The impedance offered by mass is termed the ___ ___. The + sign indicates that force attains a maximum value ___ the velocity attains a maximum value when an alternating force is applied to an object having mass. |
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mass reactance +XM; before |
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-“If a system consists of an alternating force applied to several masses in series, then the total impedance of the system is simply the sum of the ____ ___ offered by each mass component, as the relation between force and velocity is the same for each of the mass reactance components, that is, force leads velocity by ___°.” -“If a system consists of an alternating force applied to several springs in series, the total impedance of the system is simply the sum of the ____ reactance offered by each spring, as the relation between force and velocity is the same for each of the stiffness reactance components, that is, velocity leads force by 90°. ” |
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mass reactance; 90; stiffness; |
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“If the three types of impedance components exist in a system (mass reactance offered by mass, stiffness reactance offered by a spring or an object having stiffness, and resistance offered by friction), then total impedance is not simply the sum of the ___ components, as the relation between force and velocity is ___ for each of the impedance components.” |
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What is the equation for mechanical admittance? |
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The ease with which energy flows into a mass is called mass ___ |
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The ease with which energy flows into a spring or an object having stiffness is called ___ ___. The ease with which energy flows into friction is called ____. |
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stiffness susceptance +BS; conductance G |
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