Lab 4. Ropes, Block-And-Tackles
Subject: the study and parameters calculation of ropes and block-and-tackles.
Purpose: to study the structure and main elements of the ropes and block-and-tackles; their main parameters.
Order of execution:
1. Draw the esquisses of the chains and ropes.
2. Write down main characteristics of ropes and chains which are proposed by instructor.
3. Draw the block-and-tackle diagram that proposed by the instructor (straight-line diagram); show the forces.
4. Determine the biggest force in the drive line of the block-and-tackle which is caused by the weight of load Q.
5. Conduct an experimental study on the determination of the force in the drive line that is caused by the weight of the load. Determine the efficiency of the block-and-tackle.
Laboratory class conclusions with suggestions about improvement of block-and-tackles’ schemes, recommendations on enhancement of the drives i.e.:
The report should be properly prepared. Each of the report must be discussed with the lecturer to reveal the level of the student’s knowledge and skills.
Evaluation of the report: maximal score is 10:
8-10 - without comments on the report and meaningful and complete answers during the discussion (defend).
5-7 - there are minor errors in the report and meaningful and complete answers during the discussion;
3-4 - there are minor errors in the report and the issues are not explained properly during the discussion;
1-2 - there are major errors in the report and issues are not explained properly during the discussion.
Deadline: not later a week after its execution.
Methodological support: blank of the report to fill see below.
- 29 січня 2021, 19:11
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