What is the role of the rear stabilizer rod bushing?
The role of the rear stabilizer rod bushing is to reduce friction and buffer the stress of the balance rod. If the rear stabilizer rod bushing is damaged, it is easy to cause the stabilizer rod to shake, which directly affects the stability of the car.
A, auxiliary frame bushing, body bushing (suspension).
1, installed between the subframe and the body, the two-stage isolation is used, typically used in the transverse powertrain arrangement;
2, support suspension and powertrain load Support suspension and powertrain load, isolation from the subframe vibration and noise isolation from the subframe vibration and noise;
3, auxiliary functions: bear powertrain torque, powertrain static support, bear steering, suspension load, isolation engine and road excitation design principle.
1, isolation frequency or dynamic stiffness, damping coefficient.
2, static load and range Static load and range, limit deformation requirements limit deformation requirements.
3, state load (conventional use), maximum dynamic load (severe conditions)
4, collision requirements, constraints and loading, space constraints, hopes and requirements of assembly requirements;
5, mounting method (including bolt size, type, direction and anti-rotation requirements)
6, suspension position (high admittance area, not sensitive);
7, corrosion resistance requirements, temperature range, other chemical requirements, etc.;
8, fatigue life requirements, known important characteristics (size and function);
9. Price target assembly method.
1, the above is the bearing type liner.
2. The bottom is the RRebboundd liner.
3, the upper metal partition: * support bearing type liner expansion * control the assembly height.
1. Vehicle load. Vehicle load and suspension stiffness control body load height.
2, the lower liner control body Rebound displacement;
3. The lower liner is always under pressure.
Second, subframe bushing, body bushing (suspension)
Third, suspension bushing use.
1. For suspension system, provided. Torsion and tilt flexibility, and for axial and radial displacement control;
2, low axial stiffness has good vibration isolation performance, and soft radial stiffness has better stability; Structure Type Structure type: : Mechanical bonding bushing - Application: plate spring, shock absorber bushing, stabilizer rod tie rod; - Advantages: cheap, do not need to pay attention to bonding strength; - Disadvantages: easy to slip out of the axial direction, and the stiffness is difficult to adjust.
* Structure type Structure type: : Single bonded bushing Application: shock absorber bushing, suspension tie rod and control arm - Advantages: compared with ordinary double bonded bushing is cheap, the bushing will always rotate to the neutral position - Disadvantages: axial easy to slip out, in order to ensure the pressure force, you must fly design Structure type: : double bonded bushing application: Shock absorber bushings, suspension ties and control arms - Advantages: Better fatigue performance compared to single side bonding and mechanical bonding, and easier stiffness adjustment; - Disadvantages: But the price is also more expensive than unilateral bonding and bilateral bonding.
Type of construction: : Double-sided adhesive bushing -- damping hole -- Application: control arm, longitudinal arm bushing -- Advantages: stiffness can be easily adjusted -- Disadvantages: Potential failure mode of damping hole under torsional force (> +/ -15 deg); Need positioning features for pressure assembly, increase the cost Structure type: : Double bonded bushing - spherical inner tube - Application: control arm; Advantages: Low conical pendulum stiffness low conical pendulum stiffness and large radial stiffness large radial stiffness; Disadvantages: Compared with ordinary double-sided adhesive bushing Expensive structure type: double-sided adhesive bushing - with stiffness adjustment plate - Application: control arm; Advantages: The radial and axial stiffness ratio can be increased from 5-10:1 to 15-20:1, the radial stiffness requirements can be achieved with lower rubber hardness, and the torsional stiffness can be controlled; Disadvantages: Compared with the ordinary double-sided adhesive bushing, it is expensive, and the tensile stress between the inner tube and the stiffness adjustment plate can not be released when the diameter is reduced, resulting in fatigue strength problems.
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