동역학 텀프로젝트, 리프트 설계

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동역학 텀프로젝트, 리프트 설계에 대한 내용입니다.

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The device shown below uses a hydraulic piston to lift cars over the range . The piston extends at the constant rate of m/s.
1) Derive the expressions for the velocity and acceleration of the hoist platform as a function of .
2) Derive the expressions for and as a function of .
3) For b=c=0.3m, plot the upward velocity vy and upward acceleration ay over the range for m. Explain and discuss the results. What trends do you observe? How does L affect vy and ay?
4) For m, plot the upward velocity vyand upward acceleration ay over the range for the following 4 cases: i) b=0.61m, c=0.15m ii) b=0.46m, c=0.3m iii) b=0.46m, c=0.3m iv) b=0.15m, c=0.61m. Explain and discuss the results. What trends do you observe? How does the ratio b/c affect vy and ay?
5) If the weight of the car is 1200 kgf and the platform is 250kgf, for b=c=0.3m, plot the force from the linkages on the platform over the range for m. Explain and discuss the results. What trends do you observe? How does L affect the linkage forces?
6) Suppose you are asked to design the system with the upward velocity vy being the most important design criteria. Based on the results above,

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