4) The measured free vibration response of a one-degree-of-freedom system is as shown in the below graph: 20 10 ww -10 -20 0.2 0.4 0.6 0.8 Time (s) (a) Deduce from this measurement the log decrement, the natural frequency, and the critical damping ratio of the system. (b) Estimate the value of t beyond which the displacement magnitude a will not exceed 0.01-mm. (c) If the damping constant C is held fixed (constant), while the system is modified by doubling the stiffness K and halving the generalized mass M, how would that alter the answer to part (b)? (d) The initial displacement, at t =: 0, is qo=q(0) = -10-mm. What is the initial velocity vo=4(0) = ?? Displacement (mm)

Both the G and M codes used in CNC programming are discussed in depth.

b. ENGT 2020 -Robotic Fundamentals Lab 3.5 Creating a Program 1. What are the four types of moves and describe how they move between waypoints. a. C.

The following jobs are waiting to be processed at a small machine center: JOB 10 20 30 40 50 DUE DATE 260 254 260 265 275 days (round your response to one decimal place). days (round your response to one decimal place). DURATION (DAYS) 18 T 22 14 32 All dates are specified as manufacturing planning calendar days. Assume that all jobs arrived on day 200 (yesterday) in the order shown but are not scheduled to begin until day 201 (today). a) Sequence the jobs according to LPT. According to the LPT rule, the sequence of jobs should be 50, 20, 10, 30, 40 b) What is the average completion (flow) time? The average completion (flow) time is c) What is the average job lateness? The average job lateness is d) What is the average number of jobs in the system? The average number of jobs in the system is jobs (round your response to one decimal place). 62446