GB/T 14654-2025 in English
VALIDElastic damping leaf damper
- Issued on:2025-06-30
- Implemented on:2026-01-01
- File Format:PDF
- Delivery:Via email within 5 business days
Price(USD)：
$375.00
$364.00
$364.00
| Standard No: | GB/T 14654-2025 |
| Document status: | VALID |
| Title in English: | Elastic damping leaf damper |
| Title in Chinese: | 弹性阻尼簧片减振器 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2025-06-30 |
| Implemented on: | 2026-01-01 |
| Superseding: |
GB/T 14654-2008 Elastic damping leaf damper
|
| ICS Classification: | 47.020.20-Marine engines and propulsion systems |
| Chinese Classification: | U48-Shafting equipment |
| Professional Classification: | GB-National Standard |
| Related Keywords: | elastic torque range
allowable elastic torque dynamic performance indicators speed range leaf damper introduction analysis dynamic balance |
《GB/T 14654-2025弹性阻尼簧片减振器》由TC137（全国船用机械标准化技术委员会）归口，主管部门为国家标准委。
Introduction
Analysis of Standard Technology Evolution
| Version | Main Changes | Technical Significance |
|---|---|---|
| 2008 Version | Basic Technical Requirements | Establishment of Basic Parameter System |
| 2025 Version | Added 12 requirements such as dynamic balance and environmental adaptability | Adapt to high speed and extreme working conditions |
Core Parameter Comparison
| Key Differences between A and B Type Shock Absorbers | ||
|---|---|---|
| Parameters | Type A (four-stroke) | Type B (two-stroke) |
| Allowable elastic torque range (kN·m) | 1.38-440.51 | 43.36-524.45 |
| Torsional stiffness (MN·m/rad) | 0.12-100 | 2.76-100 |
| Typical moment of inertia (kg·m²) | 0.1-810.8 | 19.0-1,970.5 |
Key technical requirements
Material Specifications
Material requirements for main components:
- Spring: 50CrVA alloy steel, hardness HRC40-45
- Spline shaft: 40Cr quenched and tempered, tensile strength ≥980MPa
- Heat treatment defect control: linear defects ≤ 0.5mm, circular defects ≤ 0.1mm
Dynamic performance indicators
| Speed range (r/min) | Dynamic balance level | Torsional vibration parameter deviation |
|---|---|---|
| >1500 | G6.3 level | Stiffness ≤ 4%, damping ≤ 8% |
Implementation suggestions
Selection Process
- Determine the stroke type of the internal combustion engine and select type A/B
- Match the allowable elastic torque according to the rated torque
- Check the operating speed and dynamic balance level
Installation Precautions
Case: When installing a B180×20 shock absorber on a marine diesel engine, special attention should be paid to the following:
- Bearing sleeve clearance is controlled within ±0.4mm
- Total weight deviation ≤5% (theoretical value 4,328kg)
- Ambient temperature adaptability verification (-40℃~120℃)
Sample only — not a preview of GB/T 14654-2025
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