Knowledge

Ⅰ. The design of underwater thruster propeller has the following aspects to consider

1、Thrust demand: it is necessary to determine the propeller diameter, torsion, number of blades and other parameters by calculating the thrust required by the thruster.

2, hydrodynamic performance: need to consider the propeller blade shape, cross-sectional shape, pitch and other parameters to achieve the best hydrodynamic performance.

3, noise and vibration: the need to optimize the structure of the propeller to reduce noise and vibration, improve the reliability and service life of the propeller.

4、Materials and manufacturing: Suitable materials and manufacturing processes need to be selected to ensure the strength, stiffness and corrosion resistance of the propeller.

A brushless motor governor, also known as a brushless ESC, is an electronic device used to control the speed of a brushless motor. The main function of a brushless motor governor is to control the speed and steering of the motor, allowing the motor to adapt to different work loads and operating environments. The working principle of a brushless motor governor is based on the induction potential of the motor and the operating characteristics of the electronics. The main components of a brushless motor governor include the power tube, the control circuit and the sensor.The power tube is the core...

Brushless motors require the use of Hall elements to detect the rotor position for proper phase change for proper motor operation. Usually two Hall elements are used to detect the rotor position. This is implemented as follows:1: Two Hall elements are mounted on the stator of the brushless motor at a certain offset angle relative to each other.2: When the rotor rotates close to the first Hall element, the element will detect the magnetic field and output a signal indicating that the rotor has turned to the corresponding position.3: Based on the received signal, the motor controller determines the current...

●All-round SUP●hydrostatic/cruising SUP●Speed SUP●Fishing SUP●Yogi SUP●Surf SUP●White water SUP 1.All roundThe all-around board is the most popular and versatile type of SUP, primarily cruising on lakes or calm ocean bays. The all-round paddle board is very stable and suitable for beginners and children. Depending on the size and shape, they can sometimes be used for yoga, fishing, and even some small waves.The all-rounder is usually about 10'-12'6'' long, 30''-34'' wide, with a round head.2. Flatwater/cruising board These boards are designed for long-distance paddling and are generally longer and more stable than all-around boards, the longer length makes paddling easier for these...