- Instructions Design A Parallel Jaw Nut Cracker With At Least 6 Links An Example Containing 7 Links Is Shown In Fig 2 1 (220.72 KiB) Viewed 33 times
INSTRUCTIONS Design a parallel-jaw nut cracker with at least 6 links. An example containing 7 links is shown in fig. 2. For this particular example, when the force is applied to the handles, the upper jaw link will move downward against the fixed link. When the foregoing motion takes place, line segment AA' must remain parallel to line segment BB'. Line segment BB' should remain horizontal at all times. For your design, the overall size of the nut cracker should not exceed 20 cm in length, nor exceed a height of 12 cm when completely open. Section Break (Next Page)- Constraint S Column Break ● ● Applied ● Written technical report Virtual Presentation_ Expected outline of technical report ● Base ● Link Handle link Link 2 Applied force Upper jaw A A' B B Base Link Section Break (Continuous) Fig 2. Example of a parallel-jaw mechanism Overall length ≤ 20 cm Overall height (when fully open) ≤ 12 cm When a force of 60 N is applied on the handles, it should crack open a tropical almond nut. Investigate the size of this nut and the energy needed to crack open it. Deliverables Page 1 of 1 ENGR 330 Section Break (Continuous) Title page ● Executive summary Introduction (explain purpose, write a design goal statement, and list the design objectives in table format.) Description of Design (Make sure to include pictures of the final mechanism design with key components labeled.) Engineering analysis (Here include calculations and theory used to assist in determining linkage material selection and geometry; include any other aspects that helped you come up with your final design.) HINT: Depending on the number of links, you might end up with an over-constrained system. This means more equations than unknowns. If necessary, outsource help from math professors. Discussion (Explain the important parameters that influence the performance of the mechanism. What is the effect of moving the force applied on the handle farther back along the handle and away from the jaws?