What is/are the functions of the swashplate? which is/are right below:
It acts as a transmission between the shaft and the rotor.,
It controls the angle of attack of the rotor blades collectively.
It controls the angle of attack of the rotor blades individually.
It controls the velocity distribution over the blades.
All of the given options are correct functions of the swashplate:
- It acts as a transmission between the shaft and the rotor. The swashplate converts the rotary motion of the main rotor shaft into the up-and-down motion required to control the rotor blades.
- It controls the angle of attack of the rotor blades collectively. By tilting the swashplate, the angle of attack of all rotor blades can be simultaneously adjusted, allowing for collective pitch control.
- It controls the angle of attack of the rotor blades individually. As the swashplate tilts, it also allows for individual adjustment of each rotor blade's angle of attack, enabling cyclic pitch control.
- It controls the velocity distribution over the blades. By manipulating the swashplate, the pilot can alter the pitch and angle of attack of the rotor blades, which affects the distribution of airflow and therefore the velocity distribution over the blades.
The functions of the swashplate are as follows:
1. It acts as a transmission between the shaft and the rotor: This statement is correct. The swashplate is a mechanical component that transfers the motion and power from the helicopter's engine to the rotor blades.
2. It controls the angle of attack of the rotor blades collectively: This statement is also correct. By tilting the swashplate, the pitch angle of all the rotor blades is changed simultaneously, allowing control over the lift produced by the rotor.
3. It controls the angle of attack of the rotor blades individually: This statement is incorrect. The swashplate is responsible for altering the pitch angle of all the rotor blades together rather than individually. Individual pitch control is typically achieved through the cyclic pitch control system.
4. It controls the velocity distribution over the blades: This statement is incorrect. The swashplate does not directly control the velocity distribution over the rotor blades. It primarily manages the collective pitch and, indirectly, the rotor's lift and thrust production.
To summarize, the correct functions of the swashplate are that it acts as a transmission between the shaft and the rotor and controls the angle of attack of the rotor blades collectively.
The correct function of the swashplate, which is located below, is that it controls the angle of attack of the rotor blades individually.
To confirm this answer, we can break down the functions mentioned and eliminate the incorrect ones:
1. "It acts as a transmission between the shaft and the rotor." - This is not the primary function of the swashplate. Typically, the transmission system in a rotorcraft is responsible for transmitting engine power to the rotor system. The swashplate is not directly involved in this power transfer.
2. "It controls the angle of attack of the rotor blades collectively." - This function is not accurate either. The collective pitch control system, typically through a collective pitch lever or control system, is responsible for controlling the angle of attack of all rotor blades collectively. The swashplate works in combination with the collective pitch control system but does not directly control the collective pitch.
3. "It controls the angle of attack of the rotor blades individually." - This statement is correct and aligned with the primary function of the swashplate. The swashplate is a key component of the cyclic pitch control system, allowing for independent adjustment of the angle of attack for each rotor blade. By controlling the angle of attack individually, the swashplate contributes to adjusting lift and controlling the movement and stability of the rotorcraft.
4. "It controls the velocity distribution over the blades." - This function is not directly performed by the swashplate. The velocity distribution over the rotor blades is primarily influenced by the overall aerodynamic design of the blades and the rotor system as a whole, rather than the swashplate specifically.
In conclusion, the correct function of the swashplate, from the options provided, is that it controls the angle of attack of the rotor blades individually.