A.) If each of the three rotor helicopter blades is 3.75 m long and has a mass of 135 kg, calculate the moment of inertia of the three rotor blades about the axis of rotation.
B.)How much torque must the motor apply to bring the blades from rest up to a speed of 4.1
Homework Answers
Add Answer to:
A.) If each of the three rotor helicopter blades is
3.75
m
long and has a mass...
Let us treat a helicopter rotor blade as a long thin rod, as shown in the...
Let us treat a helicopter rotor blade as a long thin rod, as shown in the figure. (Figure 1) . If each of the three rotor helicopter blades is 3.75 m long and has a mass of 135 kg, calculate the moment of inertia of the three rotor blades about the axis of rotation. b- How much torque must the motor apply to bring the blades from rest up to a speed of 5.9 rev/s in 10 s ?
EPSON 16) (15 points) Consider a helicopter rotor blade as three long thin rods as shown...
EPSON 16) (15 points) Consider a helicopter rotor blade as three long thin rods as shown in the figure below. Each of the blades is 3.75m long and has a mass of 160 kg. How much torque must the motor supply to bring the blades from rest up to 10rt rad/s in 8.0 seconds? Rotor m= 160 kg 3.75 m
A helicopter has two blades (see figure), each of which has a mass of 250 kg...
A helicopter has two blades (see figure), each of which has a mass of 250 kg and can be approximated as a thin rod of length 6.7 m. The blades are rotating at an angular speed of 53 rad/s. (a) What is the total moment of inertia of the two blades about the axis of rotation? (a) Determine the rotational kinetic energy of the spinning blades.
A helicopter has two blades (see figure), each of which has a mass of 240 kg...
A helicopter has two blades (see figure), each of which has a
mass of 240 kg and can be approximated as a thin rod of length 6.7
m. The blades are rotating at an angular speed of 43 rad/s.
(a) What is the total moment of inertia of the two
blades about the axis of rotation? (a) Determine
the rotational kinetic energy of the spinning blades.
The tail rotor section of a Black Hawk helicopter consists of four blades, each has a...
The tail rotor section of a Black Hawk helicopter consists of four blades, each has a mass of 2 [kg), and a gear box that weights 38 [kg]. The center of gravity of each blade is 0.4 [m] from the rotational axis. The tail section is connected to the main body of the helicopter by an elastic structure. The natural frequency of the tail section is observed as 135 [rad/s]. During flight, the rotor operates at 850 [r/min). 1- Calculate...
A model of a helicopter rotor has four blades, each of length 3.1 m from the...
A model of a helicopter rotor has four blades, each of length 3.1 m from the central shaft to the blade tip. The model is rotated in a wind tunnel at a rotational speed of 520 rev/min. Part A What is the linear speed of the blade tip? Express your answer in meters per second. Part B What is the radial acceleration of the blade tip expressed as a multiple of the acceleration of gravity, g? Express your answer as...
The flywheel of an engine has a moment of inertia 3.00 kg m^2 about its rotation...
The flywheel of an engine has a moment of inertia 3.00 kg m^2 about its rotation axis. What constant torque is required to bring it up to an angular speed of 370 rev/min in a time of 7.60 s, starting from rest? N?m What is its final kinetic energy? J
The flywheel of an engine has a moment of inertia 240 kg-m2 about its rotation axis...
The flywheel of an engine has a moment of inertia 240 kg-m2 about its rotation axis torque is required to bring it up to an angular speed of 440 rev/min in a lime of 7 90s, starting from rest? What N m - Part B
5. The flywheel of an engine has moment of inertia 2.50 kg m2 about its rotation axis. What constant torque is required...
5. The flywheel of an engine has moment of inertia 2.50 kg m2 about its rotation axis. What constant torque is required to bring it up to an angular speed of 400 rev/min in 8.00s, starting from rest? ANS: 13.1 N m
Rotating unbalance is also important in rotorcraft such as helicopters and prop planes. The tail rotor of a helicopter (the small rotor rotating in a vertical plane at the back of a helicopter use...
Rotating unbalance is also important in rotorcraft such as helicopters and prop planes. The tail rotor of a helicopter (the small rotor rotating in a vertical plane at the back of a helicopter used to provide yaw control and torque balance) as sketched in Figure 2.21 can be modeled as a rotating-unbalance problem discussed in this section with stiffness k 1 x 105 N/m (provided by the tail section in the vertical direction) and mass of 20 kg.The tail section...
EPSON 16) (15 points) Consider a helicopter rotor blade as three long thin rods as shown in the figure below. Each of the blades is 3.75m long and has a mass of 160 kg. How much torque must the motor supply to bring the blades from rest up to 10rt rad/s in 8.0 seconds? Rotor m= 160 kg 3.75 m
A helicopter has two blades (see figure), each of which has a mass of 250 kg and can be approximated as a thin rod of length 6.7 m. The blades are rotating at an angular speed of 53 rad/s. (a) What is the total moment of inertia of the two blades about the axis of rotation? (a) Determine the rotational kinetic energy of the spinning blades.
A helicopter has two blades (see figure), each of which has a
mass of 240 kg and can be approximated as a thin rod of length 6.7
m. The blades are rotating at an angular speed of 43 rad/s.
(a) What is the total moment of inertia of the two
blades about the axis of rotation? (a) Determine
the rotational kinetic energy of the spinning blades.
The tail rotor section of a Black Hawk helicopter consists of four blades, each has a mass of 2 [kg), and a gear box that weights 38 [kg]. The center of gravity of each blade is 0.4 [m] from the rotational axis. The tail section is connected to the main body of the helicopter by an elastic structure. The natural frequency of the tail section is observed as 135 [rad/s]. During flight, the rotor operates at 850 [r/min). 1- Calculate...
The flywheel of an engine has a moment of inertia 240 kg-m2 about its rotation axis torque is required to bring it up to an angular speed of 440 rev/min in a lime of 7 90s, starting from rest? What N m - Part B
Rotating unbalance is also important in rotorcraft such as helicopters and prop planes. The tail rotor of a helicopter (the small rotor rotating in a vertical plane at the back of a helicopter used to provide yaw control and torque balance) as sketched in Figure 2.21 can be modeled as a rotating-unbalance problem discussed in this section with stiffness k 1 x 105 N/m (provided by the tail section in the vertical direction) and mass of 20 kg.The tail section...
Most questions answered within 3 hours.
-
3) What are the typical social structures in a global city?
asked 1 hour ago -
Luther Corporation
Consolidated Balance Sheet
December 31, 2019 and 2018 (in $ millions)
Assets
2019
2018...
asked 1 hour ago -
(Expected rate of return and risk) Carter Inc. is evaluating a
security. Calculate the investment’s expected...
asked 3 hours ago -
What specific indicators can point to lack of progress for
African Americans in American society?
asked 4 hours ago -
1-The Electrons in a beam are moving at 2.7×108 m/s in an
electric field of 15000...
asked 5 hours ago -
A gas tank is a vertical cylinder. It has a radius of 1m, a
height of...
asked 5 hours ago -
Accent Software faces the following conditions. All of these
support Accent’s use of a market-penetration pricing...
asked 6 hours ago -
A mathematically inclined friend emails you the following
instructions: "Meet me in the cafeteria the first...
asked 6 hours ago -
A monopoly sells in two countries . The demand curves in the two
countries are p1...
asked 7 hours ago -
A .15kg rubber ball is bounced off a wall. Before hitting the
wall, the ball moves...
asked 8 hours ago -
A manufacturing company preparing to build a new plant is
considering three potential locations for it....
asked 8 hours ago -
B. If compound Y has approximately the same values of solubility
in toluene as compound X,...
asked 9 hours ago