{"id":293,"date":"2019-04-22T11:25:09","date_gmt":"2019-04-22T09:25:09","guid":{"rendered":"http:\/\/swift-online.de.via.a.srvmk.de\/en\/2019\/04\/22\/rainflow\/"},"modified":"2019-08-22T05:56:00","modified_gmt":"2019-08-22T03:56:00","slug":"rainflow","status":"publish","type":"post","link":"https:\/\/swift-online.de\/en\/rainflow\/","title":{"rendered":"Rainflow"},"content":{"rendered":"\n

Closed hysteresis loops are measured by this twoparameter evaluation method and stored in a matrix with the upper and lower value of the turning point. Half-cycles are first stored in an intermediate buffer and placed in the matrix when the appropriate half-cycle completes the hysteresis loop. At the end of the counting process the result is a matrix of closed cycles and a residual waveform representing hysteresis loops which have not been closed.<\/p>\n\n\n\n

\"Rainflow-Signal-Zeitablauf\"
Rainflow Signal-Zeitablauf<\/figcaption><\/figure>\n\n\n\n

Zusatzoptionen<\/h2>\n\n\n\n

RF-HS \/ TaL-HS – Highspeed f\u00fcr RF & TaL <\/h3>\n\n\n\n

Unter der Voraussetzung, da\u00df nicht alle der m\u00f6glichen 20 analogen Kan\u00e4le benutzt werden, besteht die M\u00f6glichkeit, die Methoden RF und TaL mit erh\u00f6hter Abtastrate auszuf\u00fchren. Als Faustformel gilt maximale Abtastrate ist gleich 40kHz \/ Kanalanzahl. F\u00fcr weitere Einzelheiten kontaktieren Sie uns bitte.<\/p>\n\n\n\n

VPOV – Virtual Power Off f\u00fcr RF <\/h3>\n\n\n\n

Bei einigen Anwendungen ist bekannt, da\u00df sich bei Power-Off ein bestimmter, konstanter Messwert einstellt (z.B.: Motordrehzahl = 0). Dieser Wert kann jedoch messtechnisch nicht erfa\u00dft werden, da er sich erst einstellt, wenn die Versorgungsspannung ausgefallen ist und bei Power-On bereits nicht mehr vorhanden ist. Um diesen Wert dennoch in der RF Messung ber\u00fccksichtigen zu k\u00f6nnen, wird durch diese Erweiterung bei jedem Power-On ein virtueller Me\u00dfwert in den Datenstrom der Methode RF eingef\u00fcgt, der dem tats\u00e4chlichen Power-Off-Wert entspricht. Der Power Off Wert ist vom Benutzer f\u00fcr jeden Kanal einstellbar. Au\u00dferdem kann die Funktion f\u00fcr jeden Kanal einzeln deaktiviert werden. <\/p>\n\n\n\n

Typical Applications and Properties of Rainflow<\/h2>\n\n\n\n

This two-parameter evaluation produces the best picture of the damaging cycles with respect to fatigue in a load-time history. The matrix representation obtained by the Rainflow method is especially suitable for input into a computer. The only disadvantage is that no time information is recorded, but this is true for all statistical evaluation methods. The Rainflow evaluation method can be used to reproduce load-time histories with a damaging content very similar to that of the original signal using the technique known as “Waveform Reconstitution”.<\/p>\n\n\n\n

Rainflow Datasheet<\/a>Download<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"

Closed hysteresis loops are measured by this twoparameter evaluation method and stored in a matrix with the upper and lower value of the turning point. Half-cycles are first stored in an intermediate buffer and placed in the matrix when the appropriate half-cycle completes the hysteresis loop. … <\/p>\n

Read more<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":191,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-293","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evaluation-methods"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/posts\/293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/comments?post=293"}],"version-history":[{"count":2,"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/posts\/293\/revisions"}],"predecessor-version":[{"id":366,"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/posts\/293\/revisions\/366"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/media\/191"}],"wp:attachment":[{"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/media?parent=293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/categories?post=293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swift-online.de\/en\/wp-json\/wp\/v2\/tags?post=293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}