The following are some maintenance strategies:
1. Breakdown (DEFECT /REACTIVE) Maintenance;
2. Preventive Maintenance;
3. Predictive Maintenance ;
4. Project Maintenance;
5. Proactive Maintenance
Provide a brief description of each of these
strategies, then give examples of where each strategy would work
best in real business and why you say so.
Please solve this question as soon as possible as it is part of an assignment that I have to submitt within 10 hours. Thank you.
In: Mechanical Engineering
Maximizar P=2x+3y+5z
Sujeto a: x+2y+3z ≤ 12
x-3y+2z ≤ 10
x ≥ 0, y ≥ 0, z ≥ 0
Maximize P=2x+3y+5z
Subject to:
x+2y+3z ≤ 12
x-3y+2z ≤ 10
x ≥ 0, y ≥ 0, z ≥ 0
In: Mechanical Engineering
What is the typical impact energy value of the material for 3
different heat treatments (any). Put some microstructures and
discuss the impact energy differences . For alluminium
6061
In: Mechanical Engineering
In: Mechanical Engineering
There are ten (10) basic principles of designing economical
production. One of them
is utilising special process characteristics. Discuss about this
characteristic and
provide one (1) example to support your explanation. Provide
sketching when it is
possible in order to support your explanation.
In: Mechanical Engineering
Discuss three (3) key elements of Design for Manufacture (DFM).
Elaborate for each
of them.
In: Mechanical Engineering
In: Mechanical Engineering
A power plant operates on a regenerative vapor power cycle with
one open feedwater heater. Steam enters the first turbine stage at
12 MPa, 560°C and expands to 1 MPa, where some of the steam is
extracted and diverted to the open feedwater heater operating at 1
MPa. The remaining steam expands through the second turbine stage
to the condenser pressure of 50 kPa. Saturated liquid exits the
open feedwater heater at 1 MPa. The net power output for the cycle
is 330 MW. Assume that both turbine stages and both pumps have an
isentropic efficiency of 90%.
Determine:
(a) the percent cycle thermal efficiency.
(b) the mass flow rate into the first turbine stage, in kg/s.
(c) the rate of entropy production in the open feedwater heater, in
kW/K.
In: Mechanical Engineering
Develop a simple MIS (Management Information System)
that consists of a simple database (a text file). The system
manages to dynamically input record/data into the database. The
data from the database can be sorted, searched and updated. User
also should be able to add new records/data, remove any data and
etc.
Here are some ideas of MIS that can be developed:
1. Hotel reservation system.
2. Students management system.
3. Payroll management system.
4. Bus/Railway/Plane ticketing system.
5. Clinic record management system.
In: Mechanical Engineering
Reflect a triangle whose vertices are ?(2, 3), ?(6, 3) and ?(4, 8) about the line ? = 3? + 4. Determine the final coordinates of the triangle. Sketch the initial and final positions
In: Mechanical Engineering
A gourmet coffee shop in downtown Vancouver uses a Periodic Inventory System and is open 200 days a year. They sell on an average 75 pounds of KONA coffee beams a day. (Demand can be assumed to be distributed normally with a standard deviation of 15 lbs. per day.) After (fix cost = $16 per order), beans are always shipped from Hawaii within exactly 4 days. Per-pound annual holding costs for the beans are $3 and the cycle service level established by management is 98%. a. What is the economic order quantity (EOQ) for Kona coffee beans? b. Determine the Periodic Review Interval? c. What level of safety stock is required? d. What is the Target Inventory Level that is required to achieve these results? e. What are the total annual holding costs of stock for Kona coffee beans? f. What are the total annual ordering costs for Kona coffee beans? g. At the time the inventory was taken, the on hand was 300 lbs with the schedule receipts at 250 lbs with no back order. How much should the company order?
In: Mechanical Engineering
In: Mechanical Engineering
In: Mechanical Engineering
Write a detailed report to a technical manager on the following items. You work as field engineer at Menco Company and dealing with repair of Getinge autoclaves. You recently attended to three autoclaves at Uro Hospital. The first and second autoclave had error of liquid cycle activated while running, you bypassed the door emergency switch and its functional but need replacement of faulty spares. The third had vaccum pump failure, faulty vaccum pump. The report to be detailed and fit two A4 pages.
In: Mechanical Engineering
If Indiana County, Pennsylvania, coal with M = 3% and A = 8.5% is burned with 10% excess air, calculate the actual air fuel ratio and the ideal Orsat analysis (no CO and no unburned carbon). Also, determine the theoretical Orsat analysis if the HHV of the refuse is 5500 kJ/kg and the % CO in the dry flue gas is 0.2% of the dry flue gas.
In: Mechanical Engineering