CORRELATIONS BETWEEN STATIONARY MEASURABLE PARAMETERS OF WING MOVEMENT AND AERODYNAMIC FORCE PRODUCTION IN THE BLOWFLY (CALLIPHORA-VICINA R-D)
CORRELATIONS BETWEEN STATIONARY MEASURABLE PARAMETERS OF WING MOVEMENT AND AERODYNAMIC FORCE PRODUCTION IN THE BLOWFLY (CALLIPHORA-VICINA R-D)
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DOI:
10.1007/bf00606375
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发表时间:
1983-01-01
期刊:
影响因子:
--
通讯作者:
ROTH, W
中科院分区:
文献类型:
--
作者:
NACHTIGALL, W;ROTH, W
With the aid of a mechanical aerodynamic 2 component balance, stroboscopes and photographic projections, the following dynamic and kinematic parameters were determined from short periods of stationary flight recorded in tethered blowflies which flew for several hours in a wind tunnel: weight, lift, flight speed, wing-beat frequency, nine angles characteristic for right and left wing-beat positions and a value characterizing the angle of the stroke plane. The data were subjected to a correlation analysis; the total correlation coefficients and the first order partial correlation coefficients were calculated with a significance of 5% and 1%, respectively. The correlation between wing-beat frequency and lift was strongly positive. Frequency, lift and flight speed are positively correlated with the sum of the wing-beat angles. Although under the given experimental conditions a significant tendency towards compatible adjustment has been demonstrated lift and thrust can be controlled independently in individual cases. Negative correlations of wing-beat angles of the right and left wing are generally caused by shifting the lower turning points and indicate a neuromotor counter action of the 2 wings during turning reactions. A decreasing wing-beat amplitude is often coupled with an increase of the mean stroke plane angle. Numerous other correlations and detailed descriptions are given and compared to functional morphological and neuromotor data.