This website uses cookies to ensure you have the best experience. Learn more

Dynamic Lab Essay

2164 words - 9 pages

| 3/5/2012 |
| Mechanical Engineering Dynamics lab report.UFMEWL-10-2Vassos Tapakoudes


Executive summary
Demonstrate the patterns and relationships that stiffness and resonant frequencies follow under different circumstances on an air track. Stiffness is a measure of the resistance of a material to deformation under applied force. Resonant frequencies are the frequencies that a system appears to oscillate at greater amplitudes.


Introduction pg.2
Theoretical calculations and background information pg.2
Experimental design and procedure pg.4
Analysis result and conclusion pg.7
Reflection to other experiment pg.9

...view middle of the document...

Advantages and disadvantages of resonant frequencies
* Fatigue failure of components.
* Annoyance, sound and disturbance.
* Damaging systems close to it.
* Decreasing the efficiency of a system.
* Effective for appropriate designs and systems.
* Clock operation system
* Music
* Vibrating systems
The second factor tested in the four experiments taken, was stiffness. When a force is applied to a body, the body deforms. The measurement of the ability the body has to resist deformation is called stiffness. Stiffness is a constant force factor when Hooke’s law is applied in a system, as result stiffness will affect the output result constantly. Stiffness is a factor that will affect the operation of a system again. High stiffness can either benefit or harm a system. As a result specific stiffness should be chosen for each operation.
Also mode shape is investigated in the fourth experiment. Mode shape demonstrated the expected curvature of a mass vibrating at a particular mode. Since mode shape is multiplied by a function that varies with time, mode shape describes the curvature of vibration at all points in time. However magnitude of curvature will change. Factors affecting the mode shape are the boundary conditions and the shape.
Theoretical calculations are been done in order to find stiffness and resonant frequencies.
Experiment one (spring constant)
In the first experiment we are using F=k*x in order to find the constant K. experimental procedure is needed using a vertical stand to measure the extension and input it in the formula.
Experiment 2 (1 DOF system)
The second experiment has to do with a 1-DOF system. One trolley and rubber bands are used. Natural frequency of the oscillator is calculated theoretically in order to compare it with the experimental.
Natural frequency:

Experiment 3 (2 DOF system)
In this case we have an extra trolley and an extra rubber band fitted in the system in order to produce a 2-DOF system that is approximately symmetrical. To achieve this, set rubber band 2 connected with mass 2.then connecting spring is connected to mass 2 and mass 1 and mass 1 is connected to the shaker. Natural frequencies are calculated theoretically using the formula bellow:

Experiment 4 (asymmetric coupled oscillator)
Finally an asymmetric coupled oscillator is tested. An extra rubber band is connected parallel to rubber band 1. By using the mechanical impedance matrix to be equal to 0 at resonance, calculate the natural frequencies f1 and f2 of each shape. The procedure is shown below:

Experimental design and procedure
Four experiments are going to take place in order to find frequencies under different circumstances (e.g. 2 DOF systems). Excel operates as a very simple simulator and performs calculations and demonstrates relationships in graphs.
* An air track allowing 2 similar masser (trolleys) to travel horizontally with negligible...

Other Papers Like Dynamic Lab

Course Project Essay

1993 words - 8 pages NETW240 Week 4 Lab: TCP/IP LAN Networking Lab Scenario Launching Your Lab The status of your Lab is displayed at the top of the left navigation column. Click the Start Lab Now button. A progress bar displays while the lab is being initialized. During this time you can view items under the Content area of the left navigation bar. When Initialization is complete, the status changes to In Progress. The clock starts and a lab

Nt1230 Lab 2 Essay

871 words - 4 pages | 7. Based on the information in the Disk Management snap-in, fill out the information in Table 2-1 on your lab worksheet. Table 2-1 Disk information | |Disk 0 | |Disk type (basic or dynamic) |Basic

Lab 2 Worksheet

788 words - 4 pages | 7. Based on the information in the Disk Management snap-in, fill out the information in Table 2-1 on your lab worksheet. Table 2-1 Disk information | |Disk 0 | |Disk type (basic or dynamic

Nt2580 Information Security

788 words - 4 pages | 7. Based on the information in the Disk Management snap-in, fill out the information in Table 2-1 on your lab worksheet. Table 2-1 Disk information | |Disk 0 | |Disk type (basic or dynamic

Programming Language Using Oojavacom 121

2340 words - 10 pages hierarchies (whole-part relationships) Dynamic Modelling Messages: Services; Methods Week 13-15 PHYSICAL SYSTEMS DESIGN Database Design Record structures; File Organisations; Indexes; DBMS Platforms; Physical Objects Physical Process Design Physical DFD; Modules; Structure Chart; Transform analysis; Transaction analysis Formatted: Indent: Left: 0.5", First line: 0.5" Week 13-15 IMPLEMENTATION, EVALUATION & MAINTAINANCE Introduction to UML

Disk Redundancy Research

829 words - 4 pages must be a member of the backup operator or Admin group. 9) The default partition style used by Windows 7 on an x86 computer is MBR. 10) All digitally signed drivers have undergone Windows Hardware Quality Lab testing True / False 1) There is no way to create a fourth primary partition on a basic disk in Windows 7. FALSE 2) Striped volumes provide greater fault tolerance than simple volumes. FALSE 3) All dynamic disks have only one

Double Pipe Heat Exchanger

2578 words - 11 pages Lab #4* – *Double Pipe Heat Exchanger Introduction: Procedure: Step #1: Open up valves 11 and 13, and make sure that valves 10 and 12 are entirely closed. This will give you the proper flow setup for the parallel flow measurements. Step #2: Set the hot water flow rotameter to a % reading of 26, this 26% flow rate represents an actual flow rate of 0.2 CFM for the how water. This flow rate will be good for the first four conditions in which

Week1 Ilab

538 words - 3 pages Student Name ________________________________ Date 05/09/2013_____________ SEC572 Security Testing iLab Task 1 – Verify Connectivity between Router and Hosts Complete the table below based on the dynamic routes displayed in the routing table: Routing protocol Destination Network Metric Outbound Interface R - RIP 1 Serial0/0 R- RIP 1 Serial0/1 • Select the Task 1 commands and output in the

Lab 5 – Perform Protocol Capture & Analysis Using Wireshark & Netwitness Investigator

550 words - 3 pages Lab 5 – Perform Protocol Capture & Analysis Using Wireshark & Netwitness Investigator 1. What is the purpose of the address resolution protocol (ARP)? ARP is used to convert an IP address to a physical address such as an Ethernet address. 2. What is the purpose of the dynamic host control protocol (DHCP)? DHCP automates and controls the assignment of IP address configurations from a central position. 3. What was the DHCP

Answers To Lessons 4&5

593 words - 3 pages 1. Digitally signed P 137 2. Fragmentation P 126 3. ExFAT P111 4. Partitions, volumes P 107 5. FAT32 P 111 6. Checksum P 137 7. DiskPart P125 8. Administrators or Backup Operators P 122 9. MBR P 111 10. Widows Hardware Quality Lab P 139 TRUE/FALSE 1. FALSE 2. FALSE 3. TRUE 4. FALSE 5. TRUE 6. FALSE 7. TRUE 8. TRUE 9. FALSE 10. TRUE REVIEW QUESTIONS 1. Both spanned volumes and striped

Lab 4 Identify Motherboard Components and Form Factors (Half Done)

606 words - 3 pages Lab 4 identify motherboard components and form factors Task 1 1 A. Code name Brand name Model (list) Frequency Cores/Threads Max Memory Speed Lynnfield Core i5 i5-7xx 2.66-2.8 GHz 4/4 DDR3-1333 Core i7 i7-8xx 2.8-3.07 GHz 4/8 Xeon L34xx 1.86 GHz 4/4 or 4/8 X34xx 2.4-2.93 GHz Clarkdale Celeron G1xxx 2.26 GHz 2/2 DDR3-1066 Pentium G6xxx 2.80 GHz 2/2 Core i3 i3-5xx 2.93-3.2 GHz 2/4 DDR3-1333 Core i5 i5-6xx 3.2

Related Essays

Netw 206 Ilab Week1 Essay

1201 words - 5 pages file used is Cisco 2800 software.This file is stored in the ROM. *Hint* Read and study the explanations within the lab for assistance. (2 points) Task 1, Step 6: Paste a screenshot showing the output of the ip route command. (1 point) Question: What network(s) were learned by a dynamic routing protocol? Which dynamic routing protocol is being used by this router? *Hint* Read and study the explanations within the lab for assistance. (2

Server 2012 Lab 3 Essay

642 words - 3 pages Lab 3 Configuring Local Storage This lab contains the following exercises and activities: Exercise 3.1Exercise 3.2Exercise 3.3Lab Challenge | Initializing DisksCreating Simple VolumesCreating a Storage Pool Removing Storage Components | Exercise 3.1 | Initializing Disks | Overview | In this exercise, you use two different tools to bring three new disks online and initialize them in preparation for creating storage volumes

Work Ethics Essay

1791 words - 8 pages Abstract Working in the medical field can be a rewarding experience, when you see the patients feeling better, returning to the comfort of their homes and life as they know it. However it can also have its challenges. Working in a medical lab where there is no team work between the various sub-departments causes’ poor patient care and decreased turnaround times. The purpose for this experiment is to create an environment in which the labs

Comp230 Week 1 Ilab Essay

1811 words - 8 pages . ------------------------------------------------- ------------------------------------------------- The syntax for assigning a dynamic (DHCP) IP configuration to a NIC is: ------------------------------------------------- netsh interface ip set address “NIC” source=dhcp ------------------------------------------------- Where “NIC” is the interface name in double quotes Complete the following Windows CLI tasks using netsh interface commands. Copy the CLI commands and command output into the Task 2 box provided in your lab-report document