To install StudyMoose App tap and then “Add to Home Screen”
Save to my list
Remove from my list
The objective of this experiment is to utilize a model of a Whitworth Quick Return Mechanism to create Displacement, Velocity, and Acceleration graphs based on the data obtained during the experiment. Additionally, we aim to explore the engineering applications of the Quick return mechanism and draw conclusions regarding its advantages and disadvantages.
The Whitworth Quick Return Mechanism is a crucial component in various engineering applications, enabling repetitive back-and-forth linear motion with varying speeds. This experiment aims to investigate and analyze the behavior of the Quick Return Mechanism by measuring and plotting Displacement, Velocity, and Acceleration graphs based on the data obtained from the experiment.
By understanding the principles behind this mechanism and its applications, we can gain insights into its advantages and limitations, providing valuable information for engineering design and decision-making.
The Quick Return mechanism is employed to generate repetitive back-and-forth linear motion, where the time taken to travel in one direction is shorter compared to the opposite direction.
Verified writer
Proficient in: Physics
5 (876)
“ Have been using her for a while and please believe when I tell you, she never fail. Thanks Writer Lyla you are indeed awesome ”
This mechanism is driven by circular motion, which can be achieved using a motor or a hand-operated wheel with a handle. It serves the purpose of converting rotary motion into reciprocating motion. Quick Return Mechanisms find applications in machines such as shaper machines, where the time required to return to the initial position is shorter than the time needed for forward motion to shape a specimen. It consists of a circular crank attached to a link that produces linear motion.
The crank has a rotation of 360 degrees, resulting in a corresponding linear movement for each fixed angle of crank rotation.
The diagram below illustrates the model of the Quick Return mechanism, featuring a circular disc with a link:
| Degree of Rotation (degrees) | Displacement (inches) |
|---|---|
| 0 | 0 |
| 10 | 0.05 |
| 20 | 0.2 |
| 30 | 0.4 |
| 40 | 0.7 |
| 50 | 1.05 |
| 60 | 1.45 |
| 70 | 1.85 |
| 80 | 2.3 |
| 90 | 2.75 |
| 100 | 3.15 |
| 110 | 3.6 |
| 120 | 3.95 |
| 130 | 4.25 |
| 140 | 4.55 |
| 150 | 4.7 |
| 160 | 4.85 |
| 170 | 4.95 |
| 180 | 5 |
| 190 | 4.95 |
| 200 | 5 |
| 210 | 4.9 |
| 220 | 4.75 |
| 230 | 4.55 |
| 240 | 4.25 |
| 250 | 3.95 |
| 260 | 3.6 |
| 270 | 3.2 |
| 280 | 2.8 |
| 290 | 2.35 |
| 300 | 1.9 |
| 310 | 1.45 |
| 320 | 1.05 |
| 330 | 0.7 |
| 340 | 0.4 |
| 350 | 0.2 |
| 360 | 0 |
To create the Velocity graph, we drew tangents to the Displacement graph at every 30-degree interval. The values obtained from these tangents represent the velocity, which is then plotted against the angle of rotation to generate the required graph.
The Acceleration graph is obtained in a similar manner to the Velocity graph. Tangents are drawn to the Velocity graph at 30-degree intervals. The values obtained from these tangents, when plotted against the angle of rotation, yield the Acceleration graph.
The Whitworth Quick Return Mechanism finds applications in various engineering fields, including:
The experimental results presented in the Displacement, Velocity, and Acceleration graphs reveal valuable insights into the behavior of the Whitworth Quick Return Mechanism. The Displacement graph clearly demonstrates the reciprocating motion generated by the mechanism, with varying speeds in each direction. The Velocity graph, derived from the Displacement data, illustrates the changing velocity as the mechanism moves through its cycle. Finally, the Acceleration graph, obtained from the Velocity data, shows the acceleration and deceleration phases of the mechanism.
It is evident that the Quick Return Mechanism is highly efficient in producing rapid forward motion for shaping operations, while returning to the starting position relatively quickly. This characteristic is especially advantageous in applications such as shaping machines, screw presses, and power-driven saws, where speed and precision are essential. However, it is essential to consider the potential drawbacks, including increased wear and tear on components due to the rapid reciprocating motion.
Moreover, during the experiment, it was crucial to minimize parallax errors when recording data. By aligning the observer directly above the apparatus and ensuring that the linear scale was accurately zeroed, we reduced measurement inaccuracies.
In conclusion, this experiment provided valuable insights into the Whitworth Quick Return Mechanism's functionality and behavior. Through the creation of Displacement, Velocity, and Acceleration graphs, we observed how the mechanism efficiently converts rotary motion into reciprocating motion. This understanding of the Quick Return Mechanism's principles and its applications in various engineering fields, including shaping machines and mechanical actuators, can aid engineers in designing and optimizing systems that require rapid back-and-forth linear motion.
It is essential to recognize the advantages of the Quick Return Mechanism's quick return to the starting position, which is particularly beneficial in tasks where time efficiency and precision are critical. However, it is equally crucial to be aware of potential drawbacks, such as increased wear and tear on components due to the rapid reciprocating motion. Engineers should carefully consider these factors when selecting and designing mechanisms for specific applications.
Determining Displacement, Velocity, and Acceleration Diagrams of Whitworth Quick Return Mechanism. (2024, Jan 03). Retrieved from https://studymoose.com/document/determining-displacement-velocity-and-acceleration-diagrams-of-whitworth-quick-return-mechanism
👋 Hi! I’m your smart assistant Amy!
Don’t know where to start? Type your requirements and I’ll connect you to an academic expert within 3 minutes.
get help with your assignment
