Laboratory work procedure 1. Receive a mechanism model from the scholar. 2. Familiarize oneself with an operation princi

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Laboratory Work Procedure 1 Receive A Mechanism Model From The Scholar 2 Familiarize Oneself With An Operation Princi 1 (479.96 KiB) Viewed 31 times

Laboratory work procedure 1. Receive a mechanism model from the scholar. 2. Familiarize oneself with an operation principle of the mechanism and motion features of its links. Define which of the links is crank. 3. Evaluate sizes of the links with the help of caliper. Put the evaluation results into the table 1 of the laboratory work report (see Appendix 1). 4. Draw at a scale a kinematic scheme in coordinates, the beginning of which coincides with the centre of rotation of the crank (Fig. 1 of the laboratory work report). Point out the distances between immovable hinges on the scheme, and construct motion axes of sliders relative to the ground. 5. Analyse kinematic pairs. Put the data into the Table 2 of the laboratory work report. 6. Count the number of movable links, of lower and higher pairs, excluding passive links and constraints beforehand. Put the data into the Table 3 of the laboratory work report. 7. Evaluate the motion freedom of the mechanism. 8. Construct a scheme of an equivalent mechanism (Fig. 2 of the laboratory work report) and structure chart (Fig.3 of the laboratory work report). 9. Choosing the crank as a driving link, single out a primary mechanism and affixed structure groups and point them out in the Fig. 3 of the laboratory work report. 10. Determine a class and order of the mechanism. 11. Taking different links of the mechanism, which are connected to the ground, as driving ones, determine a class and order of the mechanism without constructing the structure groups. Put the data into the Table 4 of the laboratory work report.