 # Simulation Lab

Better Essays
1191 Words Grammar Plagiarism  Writing  Score Simulation Lab Simulation Lab
Group #5
Dynamic Systems 1, ME3211

David Cramer
Percentage of Work_______________________________________
Cory Spelman
Percentage of Work_______________________________________

Objective
Calculations
Experimentation
Results
Appendices

Objective
The objective of this lab was to understand how to use the Working Model 2D software and to apply this knowledge to create a vibration absorber. Part 1 was to open up a demo file and analyze the force vs. time of the piston. Part 2 was to create a vibration absorber. The reason for creating the vibration absorber was to limit the motion of a punch press. This press causes unwanted vibrations that affect nearby equipment during operation. The vibration of this press was to be dissipated using a mass and spring sized appropriately for the size of the press and its motion.
Calculations
The reciprocal motion of the press was given by Equation 1:
RPM=440+5*group numberπ (1) where group number was 5 and RPM is the reciprocal motion of the press in revolutions per minute. This motion was converted to radians per second by using Equation 2: ω=RPM*2π60 (2) where (2π)/(60) was used to convert the revolutions per minute to radians per second. The mass of the press and table top was given as 320kg. The mass for the vibration absorber, ma, was calculated using Equation 3: kama=ω2 (3) where ω was found based on Equation 2 and ka was found using Equation 4: ka=(4450+50*group number) (4) where group number was 5 and ka was found in units of Newtons per meter. These values were used to construct a mass spring system suspended from the table top with mass ma and spring ka. Another mass spring system was created with a mass

References: 1 Design Simulation Technologies. (2007). Working Model 2D [Computer program]

## You May Also Find These Documents Helpful

• Powerful Essays

In this equation, K represents the spring constant of the given spring. Additionally, in the lab we added a mass, m, to the system. So we can use an equation that will illustrate the harmonic motion:…

• 1961 Words
• 8 Pages
Powerful Essays
• Powerful Essays

Purpose: The purpose of this Physics Lab is to investigate what factors determine the amount of flexion of the cantilever. Hence, the objective is to establish a relationship between the length of a cantilever, which may give some insight into the physics of cantilevers.…

• 1246 Words
• 5 Pages
Powerful Essays
• Better Essays

In Part B of the experiment (Changing Mass, Constant Net Force), repeat Part A using a mass of 100g for the hanging weight. Write this under m2 in Table 2. For the first trial, get the mass of the cart and…

• 1593 Words
• 7 Pages
Better Essays
• Good Essays

The first thing to be explored to control vibrations is to try to alter the source so that it produces less vibration. This method may not always be feasible. Some examples of the sources of vibration that cannot be altered are earthquake excitation, atmospheric turbulence, road roughness, and engine combustion instability. On the other hand, certain sources such as unbalance in rotating or reciprocating machines can be altered to reduce the vibrations. This can be achieved, usually, by using either internal balancing or an increase in the precision of machine elements. The use of close tolerances and better surface finish for machine parts (which have relative motion with respect to one another) make the machine less susceptible to vibration. Of course, there may be economic and manufacturing constraints on the degree of balancing that can be achieved or the precision with which the machine parts can be made. The presence of an eccentric or unbalanced mass in a rotating disc causes vibration, which may be acceptable up to a certain level. If the vibration caused by an unbalanced mass is not acceptable, it can be eliminated either by removing the eccentric mass or by adding an equal mass in such a position that it cancels the effect of the unbalance. In order to use this procedure, we need to determine the amount and location of the eccentric mass experimentally. The unbalance in practical machines can be attributed to such irregularities as machining errors and variations in sizes of bolts, nuts, rivets, and welds. In this section, we shall consider two types of balancing:…

• 521 Words
• 3 Pages
Good Essays
• Good Essays

Procedure First we measured the weights of two masses and wingnuts that secure them. Then we placed one of the masses on the very end of a horizontal rod on the centripetal force apparatus, 0.162 m away from the centre of the rod, and the other mass 0.115 m away from the centre of the rod. Then we attached a 0.2 kg mass to the bottom of a string and wound the string around the vertical shaft of the apparatus, so that the bottom of the weight rose to the bottom edge of the tabletop the apparatus was on. We measured the distance from the bottom of the weight to the floor, and then let the weight fall to the floor, and measured the time it took to do so. We repeated this measurement, using the same initial height, four more times. Then we took the masses and the wingnuts off the horizontal rod and let the 0.2 kg mass fall in the same way as before, five times. Then we replaced the masses and the wingnuts, but put them both on the edges of the horizontal rod, and repeated the same falling mass measurements five times. We moved the masses in towards the centre of the rod and continued to repeat the falling mass measurements. We moved the masses in toward the centre four more times, each time taking five falling mass measurements. Data First Pass: m1 = 0.06158 kg; r1 = 0.162 m; m2 = 0.06158 kg; r2 = 0.115 m h = 0.876 m; R = 0.0064 m; M = 0.2 kg tavg(s) Δtavg(s) t0avg (s) Δt0avg(s) Im(energy transfer) (Js2) ΔIm (e.t.) (Js2) Im (point slope) ΔIm (p.m.)(Js2) (Js2) 8.436 0.34 4.236 0.106 0.0024 3.15 x 10-4 0.0024 3.41 x 10-6 -4 [(2x x 10-6/6.4 x 10-4) + (1 x 10ΔIm (e.t.) = Im [(2ΔR/R) + (Δh/h) + (2Δt/t) + (2Δt0/t0)] = 2.44 x 10 1 4/.0876) + (2x x 0.34/8.436) + (2x…

• 1135 Words
• 5 Pages
Good Essays
• Good Essays

The next step in this Energy Lab was to figure out the Gravitational Potential Energy for each of the object. To find this we multiplied the mass of the object with the distance from the table to the floor. Our table’s equation looked like this : MASS x 68.5 = GRAVITATIONAL PROTENIAL E.…

• 604 Words
• 3 Pages
Good Essays
• Good Essays

|[pic]rad/s & [pic]Hz (cps) & [pic]sec |M = mass of system, m = mass of unbalance mass |[pic] |…

• 1228 Words
• 5 Pages
Good Essays
• Powerful Essays

 Felt, A. P., Egelman, S., & Wagner, D(2012). I 've got 99 problems, but vibration ain 't one:…

• 6032 Words
• 25 Pages
Powerful Essays
• Good Essays

3. The spring was extended to 3cm under mass of 500g. Determine the spring constant.…

• 298 Words
• 2 Pages
Good Essays
• Good Essays

Cutting Speed(CS) of a material is the ideal number of Feet-per-Minute that the tool-bit should pass over the work-piece. This "Ideal" cutting speed assumes sharp tools and flood coolant. Adjustments need to be made for less than ideal cutting conditions. Different materials (High-Carbon/Low-Carbon Steels, Aluminums, Different kinds of Plastics) have different Cutting Speeds and can be worked/cut at different rates. In addition, some tools or processes (like threading, knurling, or cutting-off) will need to be worked at slower speeds than the Cutting Speed would indicate.…

• 660 Words
• 4 Pages
Good Essays
• Powerful Essays

L. G. Deshpande, "Simulation of vibrations caused by faults in bearings and gears," PhD Dissertation, School of Mechanical & Manufacturing Engineering, Faculty of Engineering, University of New South Wales, Sydney, Australia, 2014.…

• 4208 Words
• 12 Pages
Powerful Essays
• Good Essays

Compare the approximate mass of your chosen structure and the mass of the “Long Sutton Studio”. State any assumptions you have made. Show your working.…

• 1520 Words
• 7 Pages
Good Essays
• Good Essays

Strain gauge is bound on the beam in the form of a bridge. One end of the beam is fixed and the other end is hanging free for keeping the weights to find the natural frequency while applying the load on the beam. This displacement causes strain gauge bridge to give the output in milli-volts. Reading of the digital indicator will be in mm.…

• 3179 Words
• 13 Pages
Good Essays
• Good Essays

In some practical situations, it might be difficult to develop a mathematical model of the system and predict its vibration characteristics through an analytical study. In such cases, we can use experimental methods to measure the vibration response of the system to a known input. This helps in identifying the system in terms of its mass, stiffness, and damping. In practice the measurement of vibration becomes necessary for the following reasons:…

• 541 Words
• 16 Pages
Good Essays
• Satisfactory Essays

= 2.998 × 108 m/s |E| = c|B| |S| = I = P/A = Erms Brms /µ0 Prad = I/c, 2I/c ∆p = ∆U/c…

• 569 Words
• 3 Pages
Satisfactory Essays