6.101 A heavy machine tool mounted on the first floor of a building, Fig. 6.38(a), has...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
6.101 A heavy machine tool mounted on the first floor of a building, Fig. 6.38(a), has been modeled 5000 lb/in 50 lb-sec/in = as a three degree of freedom system as indicated in Fig. 6.38(b). (a) For k₁ 10 lb-sec/in., mf 1000 cos 60t lb, find the steady-state k₂ = 500 lb/in., k3= 2000 lb/in., C₁ = C₂ = C3 10 lb-sec²/in., mh mb 2 lb-sec²/in., and F(t) = vibration of the system using the mechanical impedance method described in Section 5.6. (b) If the maximum response of the machine tool head (x3) has to be reduced by 25 percent, how should the stiffness of the mounting (k₂) be changed? (c) Is there any better way of achieving the goal stated in (b)? Provide details. Wall Mounting 5 Machine tool head Base and mounting FIGURE 6.38 Floor k₂ k₂ k₁ (a) F(t) 0000 mh 0000 Floor (equivalent mass, mg) mb elle my Machine tool head (equivalent mass, m) (b) 9 F(t), cutting force Machine tool base (equivalent mass, m) x3(1) 1 x₂ (1) t x₁ (1) 1 DESIGN PROJECT: 6.101 A heavy machine tool mounted on the first floor of a building, Fig. 6.38(a), has been modeled 5000 lb/in 50 lb-sec/in = as a three degree of freedom system as indicated in Fig. 6.38(b). (a) For k₁ 10 lb-sec/in., mf 1000 cos 60t lb, find the steady-state k₂ = 500 lb/in., k3= 2000 lb/in., C₁ = C₂ = C3 10 lb-sec²/in., mh mb 2 lb-sec²/in., and F(t) = vibration of the system using the mechanical impedance method described in Section 5.6. (b) If the maximum response of the machine tool head (x3) has to be reduced by 25 percent, how should the stiffness of the mounting (k₂) be changed? (c) Is there any better way of achieving the goal stated in (b)? Provide details. Wall Mounting 5 Machine tool head Base and mounting FIGURE 6.38 Floor k₂ k₂ k₁ (a) F(t) 0000 mh 0000 Floor (equivalent mass, mg) mb elle my Machine tool head (equivalent mass, m) (b) 9 F(t), cutting force Machine tool base (equivalent mass, m) x3(1) 1 x₂ (1) t x₁ (1) 1 DESIGN PROJECT:
Expert Answer:
Answer rating: 100% (QA)
Ft Assume mechanical impedence 3311311 32111 311X K42 M n For steady state vibration 13 K ... View the full answer
Related Book For
Business Law The Ethical Global and E-Commerce Environment
ISBN: 978-0071317658
15th edition
Authors: Jane Mallor, James Barnes, Thomas Bowers, Arlen Langvardt
Posted Date:
Students also viewed these physics questions
-
A heavy machine tool mounted on the first floor of a building has been modeled as a 3- degrees-of-freedom system as shown below. It is given that k = 5000 lb/in., k = 500 lb/in., k3 = 2000 lb/in., C...
-
Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...
-
In 1994, David and Corrine Bako signed a contract with Don Walter Kitchen Distributors, Inc. (DW), for the purchase and installation of cabinets in their new home. DW ordered the cabinets from a...
-
Using atomic weight, crystal structure, and atomic radius data tabulated inside the front cover of the book, compute the theoretical densities of aluminum (Al), nickel (Ni), magnesium (Mg), and...
-
In her review of annual production variances, Amy Abel, CFO of Chance worth Manufacturing, noted that there was a $70,000 favorable material price variance, a $60,000 unfavorable material quantity...
-
A 20-gallon barrel, as shown in Figure 23, leaks at the constant rate of 0.1 gallon per day. Sketch a plot of the height h of the water as a function of timer, assuming that the barrel is full at...
-
When does a party have an automatic right to amend a pleading?
-
The following amortization schedule is for Flagg Ltd.'s investment in Spangler Corp.'s $100,000, five-year bonds with a 7% interest rate and a 5% yield, which were purchased on December 31, 2016, for...
-
You have been asked to calculate the discount rate for 3 years from now using an interest rate of 3% and a risk factor of 2. What should the discount rate be?
-
Dr. Linda Piro is considering opening a chiropractic clinic. Dr. Piro will see patients and her husband Lars will run clinic operations. The clinic will be open 4 days per week. Lars found a clinic...
-
A thrift has a negative annual CGAP of $35 million. A credit union has an annual CGAP of +$8 million. The thrift has total assets of $500 million and the credit union has total assets of $40 million....
-
Draw a structure using wedges and dashes for the following compound: H- - - CH3 CH3 -OH -H -OH
-
A 500.0 g pot of water at room temperature (20.0C) is placed on a stove. How much heat (in cal) is required to change the temperature of liquid water from 20.0C to 100.0C? How much heat (in cal) is...
-
A charge of 3.97 C is held fixed at the origin. A second charge of 3.50 C is released from rest at the position (1.25 m, 0.570 m). Part A If the mass of the second charge is 2.82 g, what is its speed...
-
How does linear programming facilitate decision-making in capacity allocation and resource leveling for project management in operations management?
-
A patient is being admitted to receive a high-cost medication at a dose of 1000 mg/hr for 48 hours. The medication is only available in 6-gram vials. In order to minimize waste, what is the lowest...
-
Financial Reporting generally consists of the following three reports... Question 9 Answer a. Income Statement, Auditors Report, Cashflow Statement b. Balance Sheet, Auditors Report, Income Statement...
-
What are the typical record-at-a-time operations for accessing a file? Which of these depend on the current file record?
-
Stone & Webster drew three checks in the total amount of $64,755.44 payable to the order of Westinghouse Electric Corporation. An employee of Stone & Webster obtained possession of the checks, forged...
-
You and nine of your wealthy friends decide to purchase a local minor league baseball team. The purchase price is $15 million, 60 percent of which you contribute to the business as capital. Your nine...
-
You are a middle manager with responsibility over a staff of 16 workers. One of your workers is six months pregnant. Over the last month, she has missed work an average of two days a week and seems...
-
Describe how to determine the \(x\) component of the position of an object at a specific instant, given (a) a graph of position \(x\) as a function of time \(t\) and (b) an equation for \(x(t)\).
-
In an \(x(t)\) curve, what is the significance of a steep slope as opposed to a gentle slope? What is the significance of a curve that slopes downward as you move from left to right along the time...
-
The \(x\) component of a car's velocity increases from 0 to \(+5.0 \mathrm{~m} / \mathrm{s}\) in \(1.0 \mathrm{~s}\), and then from \(+5.0 \mathrm{~m} / \mathrm{s}\) to \(+10 \mathrm{~m} /...
Study smarter with the SolutionInn App