Technology and life: starting with solar cars

Chapter 103

However, after all, it is a complex movement of human beings. It is very difficult to perfectly replicate the complex movements of human beings. It can be said that the degree of difficulty is not as high as 01:30.In order to complete the imitation of human arm movements in the same way as the design of mechas, one must start with simplicity and accumulate experience before proceeding to design more complex designs. It is impossible to completely imitate human arm movements in one step.

But if you want to make a simple imitation of arm movements, you have to consider how to connect the arm of Mecha 1.0 mechanically.

The robotic arm is the same as the human arm. It is divided into three parts. The first part is the big arm, which is the human hind limb, and the second part is the human forelimb, which is the human forearm.In addition to the forearm and hind arm there is also the part of the palm.

In order to complete the imitation of the human arm, you must first imitate the upper arm and the lower arm of the human arm so that the robotic arm can move up and down, move left and right, and of course move forward and backward. move.

The movement of the big arm is divided into rising and falling, moving to the left and right, and moving forward and backward, while the movement of the forearm is also moving up and down, moving to the left and right, and moving forward and backward , Combining the movements of the two parts can get 6X6=36 possible movements, that is to say, there are 36 possible movements for a single arm.

For example, if you want to complete the movement of raising the arm completely vertically, you need to lift the upper arm and the forearm together at this time, you need to apply an upward force to the upper arm and the forearm at the same time, through the upward force Continuously drive the movement of the upper arm and the forearm, and rise quickly or slowly, so that the upper arm and the forearm are perpendicular to the ground at the same time, so that the high-lifting action is completed.

In addition to this lifting action, the mechanical arm and forearm can also complete another 35 combinations, such as the natural swing of the arm, which controls the movement of the mechanical arm. Descend at the same time, and when the time comes, the upper arm and the forearm are also perpendicular to the ground. The difference from lifting is that one position is higher and the other is lower.When the mechanical arm is down, it is considered to have completed the lowering action of the mechanical arm.

Since the movement of letting go of the hand is the natural and relaxing movement of human beings, it is a static movement, so for Mecha 1.0, this movement is equivalent to the original state, and it is at the beginning position in the design of the machine. The design of the machine keeps the wire rope connecting the arm from shrinking or stretching.This design is equivalent to the natural hem movement of human beings, which is more in line with human action habits.

Another example is the forward movement. The forward movement requires the mechanical arm to be stretched to a horizontal position. At this time, the upper arm and the small arm of the mechanical arm need to be stretched at the same time to make the position of the mechanical arm rise slowly, but it cannot The rise is too high, and it only needs to reach the same height as the mech's shoulders.At this time, the robotic arm will become a complete level arm, and then cooperate with the robotic hand to grasp the fist. Isn't this equivalent to a human's punching action?If you make this punching action quickly, combined with the mechanical fisting action, you can quickly make a beautiful straight punch.

This straight punch is not only very fast, but also because the mechanical palm is made of hard metal, the damage caused by this straight punch is far higher than that of a human flesh and blood. Let's use the attribute of fighting. I have to say that this attribute is still very cool. After all, which man doesn't like the feeling of controlling the mecha in a bloody battle.

Mecha version 2.0 can not only make more beautiful straight punches, but also can make beautiful swinging punches.To make a punching posture, you must first stretch the mechanical arm to 180 degrees with the human body, and at the same time control the angle between the upper arm and the forearm at about 60 degrees. Arms and fists attack at the same time to hit the target in front of me. I believe that when this swing hits the target, it must be very painful. It is estimated that those aliens will have to clear half of their blood bars even if they are not dead after taking such a punch. .

The power of swinging punches is still greater than that of straight punches. Of course, this conclusion is for the human body, because swinging punches of the human body will use the power of body rotation to exert force from the waist, compared with straight punches that are sent straight More human muscles are used in swinging punches, and the punching force is naturally greater.If the strength of the human body is 1, swinging punches can be assisted by the waist. The strength of the waist is equivalent to multiplying the strength of the human body by 1 or a higher multiple. At this time, the strength of the punch must be much higher than that of straight punches itself.

But for mechs, the power gap between swinging punches and straight punches is not that big, because the swinging punches of mechas don't use other parts of the machine to exert force.If the swinging fist of the mecha uses other parts of the mecha to assist in exerting force, it can definitely get a greater force, but using other parts of the mecha to exert force means that more mechanical parts are needed to participate in the force. Once more mechanical parts Participating in the exertion of force means that the complexity of the mecha's swinging punches has become higher.

It is necessary to design a more complex force combination, which will undoubtedly add great difficulty to the design of the mech. Liu Yun doesn't know if the mecha 2.0 can realize this kind of swinging movement with the help of the whole body. .

For an uppercut, the connection between the upper arm and the forearm of the mecha needs to be moved to the side of the body. At this time, the position of the upper arm does not need to be moved and it can be kept in a natural hem state, while the forearm needs to move to the left and up. Move so that the forearm is at a 60-degree angle from the horizontal and 30 degrees from the vertical, the same fist needs to be clenched.The upper arm and forearm strike together with the fist, constantly moving to hit the target in front.

Since the mecha is 3 meters high, it is definitely impossible to use the mecha to hit someone with an uppercut, and can only use the uppercut to hit the same target like the mecha.

After the way of punching is settled, the next step is the backward movement of the mechanical arm.

This action is definitely impossible to hit any kind of boxing, but it can be used as an elbow strike.

The forearm that controls the mecha rises upwards, forming an angle of about 60 degrees with the horizontal plane. At this time, the large arm of the mecha moves backward continuously, driving the forearm of the mecha to move backward, and hits the target in the upper and rear instantly. .

Since the material of the mecha is very hard and the connection between the upper arm and the forearm is very sharp, the action of the mecha's backward elbow is bound to cause a lot of damage.

(End of this chapter)