螺旋桨动平衡检测数据

船舶螺旋桨动平衡检测数据作为重要技术数据，通过系统采集平衡品质等级、振动烈度（mm/s）、比不平衡量（g·mm/kg）等核心指标，可在多个船舶业场景中有着明显价值。对船厂和维修企业而言，这些数据能支撑精准报价和施工方案制定，提升维修效率与客户满意度；对船东和运营方而言，可基于数据评估制定最优维护时间，避免因过度振动造成的能耗增加（约3-5%）和设备过早损耗。在保险定价和理赔环节，这些数据可作为船舶技术状态的重要评估依据，助力风险定价更趋合理。对设备制造商而言，长期积累的动平衡数据能有效支撑产品优化设计和质保政策制定。一、数据获取
根据船舶类型配置获取螺旋桨的基础参数，并接收或处理实际测量到的关键数据：
1. 船舶信息：
- 船舶名称
- 船舶类型
- 检测日期
- 检测地点
2. 螺旋桨参数：
- 螺旋桨直径 (m)
- 额定转速 (RPM)
- 实际测量时的转速 (RPM) (以下简称: 测量转速)
3. 测量数据：
- 振动加速度 (m/s^2)
- 相位角 (度)
- 不平衡质量 (g)
- 不平衡半径 (mm)
二、核心计算参数
1. 螺旋桨质量估算 (kg):
公式: (螺旋桨直径 (m) ^3) * 150
2. 不平衡量 (g·mm):
公式: 不平衡质量 (g) * 不平衡半径 (mm)
3. 比不平衡量 (g·mm/kg):
公式: 不平衡量 (g·mm) / 螺旋桨质量 (kg)
4. 旋转频率 (Hz):
公式: 测量转速 (RPM) / 60
5. 振动烈度 (mm/s):
公式: (振动加速度 (m/s^2) / (2 * pi * 旋转频率 (Hz))) * 1000
6. 不平衡扭矩 (N·m):
中间变量计算:
a. 不平衡量_kgm = 不平衡量 (g·mm) / 1000000 (单位: kg·m)
b. 角速度 (rad/s) = (测量转速 (RPM) / 60) * 2 * pi
最终计算:
不平衡扭矩 (N·m) = 不平衡量_kgm * (角速度 (rad/s) ^2)
三、平衡品质等级评定
根据计算得到的“比不平衡量 (g·mm/kg)”的值，按以下规则评定平衡品质等级：
- 如果 比不平衡量 <= 0.4:
平衡品质等级 = "G0.4-精密级"
- 否则如果 比不平衡量 <= 1.0:
平衡品质等级 = "G1.0-高精度级"
- 否则如果 比不平衡量 <= 2.5:
平衡品质等级 = "G2.5-精密级"
- 否则如果 比不平衡量 <= 6.3:
平衡品质等级 = "G6.3-标准级"
- 否则如果 比不平衡量 <= 16:
平衡品质等级 = "G16-一般级"
- 否则:
平衡品质等级 = "G40-粗糙级"。

As critical technical data, ship propeller dynamic balance detection data collects core indicators including balance quality grade, vibration severity (mm/s), and specific unbalance (g·mm/kg) through systematic acquisition, and has significant value across various maritime industry scenarios. For shipyards and maintenance enterprises, this data can support accurate quotation and construction plan formulation, improving maintenance efficiency and customer satisfaction; for ship owners and operators, it can be used to evaluate and develop optimal maintenance schedules, avoiding energy consumption increases (approximately 3-5%) and premature equipment wear caused by excessive vibration. In insurance pricing and claim settlement links, this data can serve as an important evaluation basis for the technical condition of ships, helping to make risk pricing more reasonable. For equipment manufacturers, long-term accumulated dynamic balance data can effectively support product optimization design and warranty policy formulation.

I. Data Acquisition
Obtain basic parameters of the propeller based on ship type configuration, and receive or process key data from actual measurements:
1. Vessel Information
- Vessel Name
- Vessel Type
- Detection Date
- Detection Location
2. Propeller Parameters
- Propeller Diameter (m)
- Rated Rotational Speed (RPM)
- Rotational Speed During Actual Measurement (RPM) (hereinafter referred to as: Measured Rotational Speed)
3. Measurement Data
- Vibration Acceleration (m/s²)
- Phase Angle (°)
- Unbalanced Mass (g)
- Unbalanced Radius (mm)

II. Core Calculation Parameters
1. Propeller Mass Estimation (kg):
Formula: (Propeller Diameter (m))³ × 150
2. Unbalance (g·mm):
Formula: Unbalanced Mass (g) × Unbalanced Radius (mm)
3. Specific Unbalance (g·mm/kg):
Formula: Unbalance (g·mm) / Propeller Mass (kg)
4. Rotational Frequency (Hz):
Formula: Measured Rotational Speed (RPM) / 60
5. Vibration Severity (mm/s):
Formula: (Vibration Acceleration (m/s²) / (2 × π × Rotational Frequency (Hz))) × 1000
6. Unbalanced Torque (N·m):
Intermediate variable calculation:
a. Unbalance_kgm = Unbalance (g·mm) / 1000000 (unit: kg·m)
b. Angular Velocity (rad/s) = (Measured Rotational Speed (RPM) / 60) × 2 × π
Final calculation:
Unbalanced Torque (N·m) = Unbalance_kgm × (Angular Velocity (rad/s))²

III. Balance Quality Grade Assessment
The balance quality grade shall be assessed according to the following rules based on the calculated value of "Specific Unbalance (g·mm/kg)":
- If Specific Unbalance ≤ 0.4: Balance Quality Grade = "G0.4 - Precision Grade"
- Else if Specific Unbalance ≤ 1.0: Balance Quality Grade = "G1.0 - High Precision Grade"
- Else if Specific Unbalance ≤ 2.5: Balance Quality Grade = "G2.5 - Precision Grade"
- Else if Specific Unbalance ≤ 6.3: Balance Quality Grade = "G6.3 - Standard Grade"
- Else if Specific Unbalance ≤ 16: Balance Quality Grade = "G16 - General Grade"
- Else: Balance Quality Grade = "G40 - Rough Grade".

搜集汇总

背景与挑战

背景概述

该数据集由舟山市豫龙船舶工程有限公司提供，包含1440条螺旋桨动平衡检测数据，数据格式为xlsx。数据集涵盖了螺旋桨的检测编号、船舶名称、船舶类型、检测日期等基本信息，以及螺旋桨直径、额定转速、振动加速度、相位角等关键参数。数据适用于船舶螺旋桨动平衡检测，可用于船厂和维修企业的精准报价和施工方案制定，船东和运营方的最优维护时间评估，以及设备制造商的产品优化设计和质保政策制定。