Direct measurement of friction force
• Monitoring Key Components: In critical friction areas of a vehicle, such as between brake pads and brake discs, piston rings and cylinder walls, and valves and valve seats, a six-dimensional force sensor can directly measure the frictional force generated during movement. Taking brake pads and discs as an example, when the vehicle brakes, the sensor can detect the magnitude and changes in the frictional force between the brake pads and discs in real time. As brake pads wear, the contact area and coefficient of friction between them and the brake disc change, leading to changes in frictional force. By continuously monitoring these changes, the degree of brake pad wear can be indirectly determined.
Measuring the force changes of components
• Analyzing Force Data: Under normal operating conditions, automotive components experience forces within a certain pattern and range. When components wear down, the force distribution changes accordingly. For example, during engine crankshaft operation, a six-dimensional force sensor can measure the torque, axial force, and radial force acting on it. If the crankshaft bearings wear down, the force distribution on the crankshaft will change, and the magnitude and direction of the forces detected by the sensor will differ from normal conditions. By analyzing this force change data, it is possible to determine whether components are worn and the approximate extent of the wear.
• Vibration Detection: Worn parts often produce abnormal vibrations during operation. A six-dimensional force sensor can detect these vibrations and determine the wear condition of the parts by analyzing parameters such as frequency, amplitude, and phase. For example, when a car's wheel bearing wears down, the wheel will vibrate at a specific frequency and amplitude during rotation. After the sensor captures these vibration signals, processing and analysis can determine the degree of bearing wear.
Assess changes in fit clearance
• Observe the impact of clearance: The clearance between components has a significant impact on their stress and motion. As wear intensifies, the clearance gradually increases, leading to changes in the stress on the components during operation. Taking the piston ring and cylinder wall as an example, when the piston ring wears, the clearance between the piston ring and cylinder wall increases, gas leakage increases, and the pressure distribution and friction during piston movement change. By measuring these changes, a six-dimensional force sensor can infer the wear condition of the piston ring and cylinder wall and the degree of change in the clearance.
