Section 4 Diesel alternator sets
Clasification Society 2024 - Version 9.40
Clasifications Register Guidance Information - Ship Vibration and Noise Guidance Notes - Chapter 7 Machinery vibration - Section 4 Diesel alternator sets

Section 4 Diesel alternator sets

4.1 The assessment criteria apply to both rigidly mounted and resiliently mounted sets.

4.2 Vibration levels on alternators driven by reciprocating internal combustion engine should be assessed using Table 7.5.1 Vibration of AC generating sets driven by reciprocating internal combustion engines which have been reproduced from ISO 8528 Part 9 table C.1.

4.3  Alternator Assessment

  • <value 1. Damage not expected with standard designs if vibration less than this level.
  • >value 1, >value 2. Assessment of structure and components may be required, along with an agreement between manufacturer and component supplier to ensure reliable operation.
  • >value 2. Special designs of structure and components required.

4.4  Engine assessment

In general, engine vibration levels which lie within the “Recommended” area of Figure 7.3.2 Reciprocating machinery will also comply with the Value 1 of ISO 8528 Part 9.

Parent topic: Chapter 7 Machinery vibration
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