{"id":260728,"date":"2024-10-19T17:16:12","date_gmt":"2024-10-19T17:16:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-14839-42012\/"},"modified":"2024-10-25T12:59:29","modified_gmt":"2024-10-25T12:59:29","slug":"bs-iso-14839-42012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-14839-42012\/","title":{"rendered":"BS ISO 14839-4:2012"},"content":{"rendered":"

This part of ISO 14839:<\/p>\n

    \n
  1. \n

    indicates a typical architecture of an active magnetic bearing (AMB) system so that users can understand which components are likely to comprise such systems and which functions these components provide;<\/p>\n<\/li>\n

  2. \n

    identifies the primary similarities and differences between AMB systems and conventional mechanical bearings;<\/p>\n<\/li>\n<\/ol>\n

    \n

    NOTE This information helps AMB system users better to understand the selection process and implications of transition to AMB technology.<\/p>\n<\/blockquote>\n

      \n
    1. \n

      identifies the environmental factors that have significant impact on AMB system performance;<\/p>\n<\/li>\n

    2. \n

      identifies the operating limitations that are unique to AMB systems and defines standardized methods of assessing these limitations;<\/p>\n<\/li>\n

    3. \n

      identifies typical mechanisms for managing these limitations, especially rotor unbalance;<\/p>\n<\/li>\n

    4. \n

      provides considerations for the design and performance of touchdown bearing systems;<\/p>\n<\/li>\n

    5. \n

      defines a typical signal set for provision in an AMB system for proper system\/process interface as well as condition and diagnostic monitoring;<\/p>\n<\/li>\n

    6. \n

      details current best practices for monitoring, operation and maintenance to achieve highest operational system reliability;<\/p>\n<\/li>\n

    7. \n

      identifies typical fault-handling practices;<\/p>\n<\/li>\n

    8. \n

      recommends inspection and preventive maintenance processes for AMB systems.<\/p>\n<\/li>\n<\/ol>\n

      PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
      7<\/td>\nForeword <\/td>\n<\/tr>\n
      9<\/td>\n1\tScope
      2\tNormative references
      3\tTerms and definitions <\/td>\n<\/tr>\n
      10<\/td>\n4\tActive magnetic bearing system architecture <\/td>\n<\/tr>\n
      11<\/td>\n5\tImportant differences between magnetic bearings and conventional bearings
      5.1\tSome advantages of active magnetic bearings <\/td>\n<\/tr>\n
      13<\/td>\n5.2\tSome disadvantages of active magnetic bearings <\/td>\n<\/tr>\n
      14<\/td>\n5.3\tComparison among rolling, fluid film and magnetic bearings
      6\tSystem condition monitoring
      6.1\tGeneral
      6.2\tExcess rotor shaft displacement (radial x, y, and axial z) <\/td>\n<\/tr>\n
      16<\/td>\n6.3\tExcess of rotor expansion
      6.4\tOverload of bearing (over current of bearing coil)
      6.5\tBearing temperature high
      6.6\tOverspeed of rotor
      6.7\tPower supply defect
      6.8\tBattery power defect
      6.9\tController temperature high <\/td>\n<\/tr>\n
      17<\/td>\n6.10\tCooling
      7\tEnvironmental factors
      7.1\tIntroduction <\/td>\n<\/tr>\n
      18<\/td>\n7.2\tEnvironmental category tables <\/td>\n<\/tr>\n
      21<\/td>\n7.3\tExplosive atmosphere types
      8\tSystem requirements
      8.1\tEstimation of bearing load <\/td>\n<\/tr>\n
      22<\/td>\n8.2\tLimitation of dI\/dt for laminated bearings <\/td>\n<\/tr>\n
      24<\/td>\n8.3\tBalancing <\/td>\n<\/tr>\n
      25<\/td>\n8.4\tLocation of bearings and transducers
      8.5\tFault recovery and fault handling
      8.6\tSignal processing
      8.7\tMonitoring system <\/td>\n<\/tr>\n
      26<\/td>\n9\tTouchdown bearings
      9.1\tTouchdown bearing requirements
      9.2\tDesign of touchdown bearings <\/td>\n<\/tr>\n
      28<\/td>\n9.3\tTouchdown bearing monitoring
      9.4\tTouchdown test methods <\/td>\n<\/tr>\n
      30<\/td>\n10\tPreventive inspection
      10.1\t Introduction
      10.2\tRegular inspection and maintenance
      10.3\tCondition monitoring (recommendation) <\/td>\n<\/tr>\n
      31<\/td>\n10.4\tInspection checklist <\/td>\n<\/tr>\n
      32<\/td>\nAnnex\u00a0A
      \n(informative)<\/p>\n

      Sizing of magnetic bearings <\/td>\n<\/tr>\n

      35<\/td>\nAnnex\u00a0B
      \n(informative)<\/p>\n

      Example of a design specification check list <\/td>\n<\/tr>\n

      37<\/td>\nAnnex\u00a0C
      \n(informative)<\/p>\n

      Example conditions for acceptance tests <\/td>\n<\/tr>\n

      38<\/td>\nAnnex\u00a0D
      \n(informative)<\/p>\n

      Touchdown test method example <\/td>\n<\/tr>\n

      40<\/td>\nAnnex\u00a0E
      \n(informative)<\/p>\n

      Example of system limitations (current\/voltage saturation) <\/td>\n<\/tr>\n

      43<\/td>\nAnnex\u00a0F
      \n(informative)<\/p>\n

      Unbalance control <\/td>\n<\/tr>\n

      48<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

      Mechanical vibration. Vibration of rotating machinery equipped with active magnetic bearings – Technical guidelines<\/b><\/p>\n\n\n\n\n
      Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
      BSI<\/b><\/a><\/td>\n2012<\/td>\n52<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":260734,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-260728","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/260728","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/260734"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=260728"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=260728"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=260728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}