The main flight structures of flies include exoskeleton and flight muscles. Flies flap their wings with a figure of eight when flying. This way of flapping wings can make the air around the wings form vortex airflow, help flies fly easily, and convert air resistance into flight power. Compound eye is a sensory organ located in the head of a fly, which can sense the surrounding environment 360 degrees, and its body hair can also sense the change of air mobility. After sensing the threat for a hundred milliseconds, the fly's brain can respond and calculate the best escape angle and route.
The flight characteristics of mosquitoes:
1, the flapping speed of its wings is extremely fast, reaching 700mhz, and each swing is less than 40 degrees. Mosquitoes can provide lift by rotating their wings. When their wings provide enough lift, mosquitoes begin to rotate from part of their bodies and downward, creating a low-pressure area at the top to provide more lift. Although this is not important, mosquitoes make the most of this extra lift.
Basically, mosquitoes can do these two things at the same time without rotating their wings. Rotation only uses the part of the body near the tip. That is to say, as long as the wing tip and the wing bottom are rotated, it can be ensured that some part of each flap always produces lift. So mosquitoes can paddle at high speed with short wings to maximize.
Bee flight characteristics:
1. Bees use gravity sensors and the earth's magnetic force to locate their nests; When going out to collect and fly back and forth, bees use the functions of sight and smell to determine their own direction according to the position of terrain, objects and the sun. Nearby, we mainly rely on color and smell to find the location of the nest door and food.
2. When a bee flies, the running track of the outer apex of its front wing is a slender "8", and the process is opposite to the conventional writing direction, and the wing stroke angle is about 65438+020. ?
3. The flapping frequency of bees is almost unchanged when they are accelerating, decelerating, changing direction, flying at a constant speed and hovering, which shows that bees change their flight state not by changing the flapping frequency, but by adjusting the attack angle of their wings. ?
4. When bees flap their wings, the airflow velocity near the back of the fuselage is obviously higher than that below the fuselage, forming a smoke distribution similar to the leading edge vortex, which provides support for the unsteady high lift mechanism.
Common features: 1. They all have to flap their wings at high frequency and keep flapping their wings to keep flying; They can all hover in the air, that is, stop somewhere and let their colleagues flap their wings at high frequency.