table shows the stepper motor specifications:
Table 2-1: Stepper Motor Specifications
Current 4.2 A
Torque 8.34 N.m
The desired torque calculated to withstand the mirror weight, friction and air resistance is 69.75Nm. This torque cannot be satisfied by the stepper motor on its own since the torque the stepper motor can carry is 8.34 N.m. A worm gearbox is thus required in this situation to help raise the torque and withstand the mirror weight, friction and air resistance.
Figure 2-14: Worm Gearbox
The gearbox has reduction ratio of 16. The motor and gearbox rotation angle and torque are given in the following table.
Table 2-2; Motor and Gearbox Rotation Specification
Step Angle (Degrees) 1.8 0.11
Torque (Nm) 8.34 133
4.2.2 Motor and Gearbox Assembly
The stepper motor is connect with the worm gearbox along with the driver board and power supply.
Figure 4-5: Motor and Gearbox used
Below is the assembly of the motor connected…
IV. Mechanical analysis for the manipulator arm
In this section, the static analysis, forward kinematics and inverse kinematics for the manipulator arm will be discussed.
A. Static Analysis
The static analysis is very significant in manipulator’s design to roughly approximate the required torques from each motor. In our design, it is important to check the stability of the quadcopter that the manipulator is integrated on it in terms of manipulator arm center of mass shifting as function of…
At low loads the reason for the lack of efficiency is down to the extent of the slipping as the tensions are less, however the reason for the decreasing efficiency at high torques is down to losses in the engine itself. With engines, the term ‘stall torque’ refers to when the torque is great enough that the output rotational speed becomes zero, as the mechanical resistance increases to the extent that more current cannot be consumed from the supply. This will be the greatest possible torque as…
Mouse Killing Car Project
While building and testing a mousetrap car the builder must understand a few simple but, vital mechanics. The vehicle will be propelled by the pulling force of a small mousetrap. The end goal of building this car is to have it go from one end of the room to the other on top of carpet. Leverage, kinetic energy, and friction; are things to take into consideration while testing and building the car.
There are two types of levers to keep in mind. The first is the lever arm…
The Hellcat “belts out a staggering 707 horsepower and 650 lb-ft of torque and a base price of just $60,990,” simplifying into just “$86.27 per horse” (Calabi). Through the simplification of this statistic, the writer is able to communicate with the average person and reveal the horsepower and torque capable by the new Challenger comes at a reasonable price. Secondly, the power of the Hellcat is intensified as “Dodge created the most powerful muscle car ever… with front rotors the size of large…
inclinometer from ASM is shown in Figure 1 below.
Figure 1: Digital Inclinometer Drawing11
An issue with using this instrument in the design of a mini torsion device may be its size. Depending on the design of the overall device, the radius of the inclinometer might be too large. The radius of the digital inclinometer above is 42 mm, which is about 7-8 times the diameter of the sample. A lab that used inclinometers to measure the angle of twist also found that the response of the inclinometer…
The axis of the forces, orientation, resultant, torque, couple and
moment are all related to the force. So keeping in view the importance of this fact in the
engineering the topic is studied.
Force is described earlier as an element which may cause a body to move or tries
to move it or stops else ties to stop it. Now lots of things are important here related to
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opportunities to contribute to the project as well as the opportunity to understand and learn the concepts supplied in this problem.
In doing this I was able to better understand equilibrium. Before this problem, all I knew about equilibrium was that it meant everything in a system was balanced, but when doing this problem I was able to visualize this and actually see how it is applied in various situations. I believe the cause of my improved understanding of equilibrium was seeing how it…
or took off. This was most noticeable in a vehicle with a continuously variable automatic transmission (CVT). This isn't an issue with the Niro, particularly when it's in Sport mode. Kia opted to replace the CVT with a six-speed, dual-clutch transmission, one which allows the car to shift and rev like conventional models. Noise isn't an issue in this model, either, even when the gas engine engages. The only thing drivers will notice is the silence of the car when the electric motor is operating.…
accelerometer pickup mounted on the engine, after allowing initial running of the gear for some time. The sampling frequency was 12000 Hz and speed of motor 1440 rpm. The sample length was chosen arbitrarily. However, the following points were considered Statistical measures are more meaningful when the number of samples is more. On the other hand, as the number of samples increases, the computation time increases. They show time domain plots of vibration acceleration of a normal gear (without…