Syllabus objectives Flashcards
(78 cards)
what is a community problem that a mechanical engineer would solve?
Providing clean and accessible water to communities in need by designing and developing systems which can remove bacteria and impurities and water to provide clean and accessible water to everyone.
what is a community problem that a mechatronics engineer would solve?
improving emergency response through the development of robots and drones enabling autonomous navigation, obstacle avoidance, debris removal and delivery of supplies.
what is a community problem that a biomechanics engineer would solve?
they can develop advanced prosthetic limbs, orthotic devices ad mobility aids to improve the quality of life for individuals with limb loss or mobility impairments within the community.
what engineering understanding do biomechanical engineers need to develop prosthetic limbs for communities?
- structural analysis to ensure the prosthetic can withstand various loads and forces encountered during regular use.
- expertise in selecting materials that balance strength, durability, weight and biocompatibility
- metals, polymers and composites.
- understanding of biomechanics and anatomy to replicate natural movements.
what engineering understanding do mechatronics engineers need to develop emergency response robots and drones?
- control software for autonomous navigation
- understanding of materials like aluminium, steel, or composite materials to ensure strength, durability and lightweight construction
- understanding of sensor materials and technology
what engineering understanding do mechanical engineers need to develop water filtration systems for communities?
- understanding of technology and materials to ensure its functionality, durability and effectiveness
- understanding of materials such as PVC, stainless steel, non corrosive materials and abrasive resistant materials
how does a bicycle provide mechanical advantage?
its gear system allows the rider to convert a small input force into a larger output force. the longer pedal arms (cranks) are allow the rider to generate a greater torque on the crank, which translates into more power
how does a car jack provide mechanical advantage?
a car jack employs a screw thread for heavy lifting. A small force is applied in a horizontal plane and used to raise or lower a large load.
how does a crow bar provide mechanical advantage?
a crow bar is a class one lever as the effort force and applied force at at either end of the fulcrum. A crowbar provides mechanical advantage through leverage as the smaller effort distance translates to a larger load distance.
what is linear motion?
motion in a straight line in a horizontal or vertical direction
what is rotary motion?
motion in a continuously circular path that is about an axis
what is oscillatory motion?
repeated motion
what is reciprocal motion?
repetitive back and forth or up and down
what is mechanical advantage?
the ratio of the output force produced by a machine to the force applied to it
what is velocity ratio?
the ratio of distance moved by the effort to the distance moved by the load
what is the mechanical advantage of an inclined plane?
length/height
what is the total acting force on an inclined plane?
Ff + mgsin0
what is a first class lever?
fulcrum between the load and effort
what is a second class lever?
load between the fulcrum and effort
what is a third class lever?
effort between the fulcrum and the load
what is the VR of a spur gear?
no. teeth on driven/ no. teeth on the driver
what is the VR of a worm gear?
no. teeth on worm wheel/ no. of threads on worm
what is the VR of a rack and pinion?
no. of teeth on pinion x no. of teeth on the rack
what is the VR of a pulley?
number of ropes attached to a moving pulley
