Exemplos de uso de External torque em Inglês e suas traduções para o Português
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External torque seal butterfly valve.
In table 2, the value of the External Torque for different angles is shown.
This variable is not constant, therefore,may present some direct relation with the External Torque values presented.
The values calculated for the External Torque t and measured for the landing angles q were then concentrated in table 1.
The angular momentum of a system is constant if the sum of the external torques acting on the system is zero.
Since external torque is minimized by mounting the device in gimbals, its orientation remains nearly fixed, regardless of any motion of the platform on which it is mounted.
The angular intervals are in the horizontal axis and the values of the External Torque averages, represented by t, in the vertical axis.
The results of this study reached the conclusion that the smaller the landing angle of the rolling scope,the bigger the external torque will be.
The data were selected in intervals and the averages of External Torque per interval as well as the dispersion of these values in the same intervals were calculated.
As the mass and length of each gymnast's leg are constant,these two variables do not influence the External Torque value.
This orientation changes much less in response to a given external torque than it would without the large angular momentum associated with the gyroscope's high rate of spin.
Through this relation we may observe that a high acceleration causes a maximum value for the resulting External Torque, and a minimum value for the landing angle.
This orientation changes much less in response to a given external torque than it would without the large angular momentum associated with the gyroscope's high rate of spin.
Since external torque is minimized by mounting the device in gimbals, its orientation remains nearly fixed, regardless of any motion of the platform on which it is mounted.
The second step of the treatment through interval is the calculation of the average External Torque per interval. These values are shown in table 3.
The values for the External Torque should behave alike, once as may be observed in the equation 1, the External Torque is directly proportional to the seno value of the angle.
Observing table 1 a great dispersion of values presented for the landing angle q can be seen and consequently,in the values calculated for the External Torque t. Such data behavior is even more evident when graph 1 is observed.
From this model it is also studied the case where the external torque are feedback by the angular velocities in the main directions of the body of inertia, for these situations the gyroscope presents chaos.
In many applications, a high precision pointing is achieved using reaction wheels as actuators, which are used as momentum storage for the spacecraft, butare limited to the compensation of internal and periodical external torques only.
In other words,when the acceleration variable decreases, the External Torque also does, even if the seno values increase in the angular interval in which the measure is taken.
The performance of more complex acrobatic elements such as double mortals and mortals with spinning, quantitatively depends on the physical components: linear momentum,angular momentum and External Torque, generated during the approximation and exit of the rolling scope.
Since this study is limited to measure the landing angle and the external torque, the influence of the entrance angle of the jump in relation to its finalization was not observed.
When the rolling scope begins, there is an energy transformation, that is, the initial energy that was only kinetic, is decomposed in two other forms of energy: rotation kinetic and potential. These changes occur concomitantly with two new physical greatnesses:the angular momentum and the External Torque.
Where t represents the value for the External Torque, m the mass value,_BAR_ a_BAR_ the module of the acceleration concerning the execution of each movement, r is the size of the leg segment of each gymnast and q is the landing angle.
Two implant models were used, made of commercially pure titanium, both measuring 3.75 mm in diameter and 10 mm in length:a conventional external torque hexagon implant, and an internal torque hexagon implant.
Besides that, the necessary tools for the data inference related to the External Torque calculation and with the landing angle measurement, were quite simple,adapting to this study's objective The values referring to the External Torque were calculated through the equation 1.
The best landing angle obtained among the studied gymnasts was of 40 to 48°. Whenever the athlete's objective is to give sequence to the collection of movements that begin after the rolling scope, the balance between acceleration andangles position should be observed in order to obtain higher External Torque values.
A pd controller is designed for situations without disturbances and failures; a pd-type anda pid-type controllers robust to disturban- ces(external torques) are also designed; and a control law is proposed for the situation of total failure of one reaction wheel. this controller ensures the satellite stability.
Among them, only the angular momentum and External Torque directly relate with this movement, once only these components are implied in the rotation action promoted by it. However, the External Torque is the most relevant component in this study, since this physical greatness represents the variation of the angular momentum in relation to time.
Secular torques, such as aerodynamic drag and solar radiation pressure, tend to saturate the reaction wheels(leading to a maximum positive or negative speed), andit is necessary to apply an external torque(magnetic or mass expulsion) to force the wheels speed back to operational levels, decreasing the total angular momentum of the spacecraft.