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The vibration absorber is a type of equipment that converts mechanical vibrational kinetic energy into heat energy, which is then absorbed by the high elastic deformation properties of the rubber material.
Its core functions include:
Energy dissipation: It consumes vibrational energy by utilizing viscous shear and elastic hysteresis effects.
Momentum isolation: It blocks the vibration transmission path, thereby reducing the risk of system resonance.
Buffer protection: It absorbs shock loads and extends the service life of the equipment.
Zhongmu Rubber is committed to developing both existing and new products, offering customers high-quality, high-performance isolation solutions.
Typical construct type comparison
| structured type | structure characteristics | Dynamic performance parameters | application scenarios |
| Solid compression type | Single rubber column (no reinforced layer) | Scirrhosity ShoreA70-90 | Low-frequency and large-amplitude industrial equipment |
| Fiber enhancement type | Rubber matrix + aramid fiber woven mesh | shear modulus≥15MPa | Earthquake absorption of high-speed rail transit |
| Metal nested type | Aluminum alloy shell + rubber lining | radial rigidity ≥500N/mm | Generator set vibration isolation |
| Multi-layer compound | NBR base layer + EPDM damping layer + silicone surface layer | thermal adaptability -50~+200ºC | Semiconductor equipment precision vibration isolation |
International standard and test range
| criterion | test project | technical requirement |
| ISO 9001 | quality management system | Whole-process traceability |
| GB/T 10179 | Experimental method of rubber shock absorber | The deformation was <20% after 10 ^ 6 cycles |
| ASTM D3452 | Schematic drawing test | Rehome rate is> 70% |
| IEC 60068-2-6 | Environmental experiments | -40ºC ~ + 85ºC cycle aging |
| failure mode | analysis of causes | Improve the plan |
| surface checking | UV aging (> 2000h exposure) | Add UV absorber (carbon black N330) |
| The central hole collapsed | Localized overload (> 150% rated load) | Set the safety factor (≥2.5) |
| Damage recession | Liquid erosion (ASTM D471 test) | HNBR oil resistant rubber |
| Install stress cracking | Taper fitting (H7 / p6) | Add flexible spacer (Shaw 30-50A) |
Material type selection system
| Rubber type | dynamic modulus (MPa) | temperature range(-40ºC~+150ºC) | oil resistivity (70#) | Typical application |
| NBR | 2-5 | -40ºC~+120ºC | Volume change rate<10% | Automobile shock absorber, hydraulic cylinder bushing |
| EPDM | 3-8 | -50ºC~+180ºC | Volume change rate<5% | Building vibration isolation cushion, wind power sealing |
| SBR | 2-4 | -20ºC~+100ºC | Volume change rate<15% | Industrial floor damping pad |
| IIR | 1-3 | -40ºC~+80ºC | Volume change<8% | Precision instrument vibration absorber |
| device type | Application site | vibration performance | Type of shock absorber | Type of shock absorber |
| excavator | Rotary turning platform and walking mechanism | Low-frequency (2-10Hz) axial vibration | Compressed shock absorber | Hardness of Shore A 70-90, compression rate of 30% |
| crane | Hanging arm, balance beam | Intermediate frequency (10-50Hz) torsional vibration | Cut-type shock absorber | Shear modulus of 15MPa, 5-8mm in thickness |
| loader | Hanging arm, balance beam | High-frequency (50-200Hz) random vibration | Compound shock absorber | Rubber + metal skeleton, with a damping ratio of ζ =0.8-0.9 |
| road roller | Shbrator, self-walking wheel | Impact load (5-10ms pulse) | hydraulic buffer | Ababsorbed energy 200 kJ with response time <50ms |
| shield tunneling machine | Spindle drive, pipe segment assembly machine | Multi-axial synchronous vibration (axial + radial) | 3 D shock absorption module | Flexible connection design, torsional torque 500 N·m |
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